Select is running slow on indexed column
Hi All,
I have a table with 11 partitions defined .
Number of rows in the table is 698 Million rows.
I have created one index on this table on a single field like below
create index on router(org) nologging parallel 8;
org is a 15 byte width varchar2 column.
index is successsfully created .But when i try to query like below
select count(1) from router where org='134FGT';
It takes long time . running for more than 3 mins and still waiting .
When i checked explain plan for above statement , its taking index path and cpu time shown as 00:00:01 and cost 2
Oracle version Ora 10gR2 , installed on Solaris 10 , 16 Dual core machine.
can any one tell me what is the issue here ???
Thanks
Hello, what is your partitioning strategy, i.e., range, hash, or composite?
Can you post:
a) The exact DDL of your index creation statement
b) An explain plan, using:
EXPLAIN PLAN FOR
SELECT...
SELECT * FROM TABLE(dbms_xplan.display);c) Preferably a trace (tkprof) of the operation.
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Parallel hint causes a query to run slower?
I have an insert...select query where the select is a join between a table with one billion rows (although there is a where clause on an indexed column that restricts it to "only" 300 million), a table with 30 million rows, and a table with about 100,000 rows, where the result is about 20 rows. When I first ran it, it took about 2 hours. I added a Parallel hint, and explain plan showed that it was being used (and v$session showed that I had about 30 additional connections while it ran). but not it takes four hours.
Is there a reason parallel processing would cause a query to run slower?
insert /*+ append */ into employees_by_age_group
pay_plan
, age_range
, pay_level
, fy
, employee_count
select /*+ parallel */
emp.pay_plan
, to_char(d.min_age) || '-' || to_char(d.max_age) as age_range
, emp.pay_level
, pay.fy
, count(pay.employee_id) as employee_count
from
select /*+ index(pay_info pay_info_index_on_site) */
employee_id
, extract(year from (dte_ppe_end + 92)) as fy
, count(employee_id) as num_recs
from pay_info
where extract(month from dte_ppe_end) = 10
and extract(day from dte_ppe_end) between 14 and 27
and substr(pay_type, 1, 1) IN ('A', 'B', 'C')
and site like 'Z%'
group by employee_id, extract(year from (dte_ppe_end + 92))
) pay
join
select employee_id
, pay_plan
, pay_grade
, pay_step
, file_date
from
select /*+ index(employee_info employee_info_index_on_site) */
employee_id
, pay_level
, file_date
, max(file_date)
over (partition by extract(year from (file_date + 61)))
as last_file_date
from employee_info
where site like 'Z%'
where file_date = last_file_date
) emp
on (
emp.employee_id = pay.employee_id
and extract(year from emp.file_date) = pay.fy - 1
join (
select employee_id
, dob
from (
select employee_id
, date_birth
, row_number() over (partition by employee_id order by date_file desc) as r
from employee_birthdates
where site like 'Z%'
where r = 1
) dob
on dob.employee_id = pay.employee_id
join
select 20 as min_age, 24 as max_age from dual
union all select 25 as min_age, 29 as max_age from dual
union all select 30 as min_age, 34 as max_age from dual
union all select 35 as min_age, 39 as max_age from dual
union all select 40 as min_age, 44 as max_age from dual
union all select 45 as min_age, 49 as max_age from dual
union all select 50 as min_age, 54 as max_age from dual
union all select 55 as min_age, 59 as max_age from dual
union all select 60 as min_age, 64 as max_age from dual
union all select 65 as min_age, 69 as max_age from dual
union all select 70 as min_age, 74 as max_age from dual
union all select 75 as min_age, 79 as max_age from dual
union all select 80 as min_age, 84 as max_age from dual
union all select 85 as min_age, 89 as max_age from dual
union all select 90 as min_age, 94 as max_age from dual
union all select 95 as min_age, 99 as max_age from dual
) d
group by emp.pay_plan, d.min_age, d.max_age, emp.pay_level, pay.fy;Paul - here are three different explain plans
First, the original one (without the parallel hint):
INSERT STATEMENT ALL_ROWS Cost: 26,684,255 Bytes: 114 Cardinality: 1
35 LOAD AS SELECT EMPLOYEES_BY_AGE_GROUP
34 HASH GROUP BY Cost: 26,684,255 Bytes: 114 Cardinality: 1
33 NESTED LOOPS Cost: 26,684,254 Bytes: 114 Cardinality: 1
14 HASH JOIN Cost: 26,684,222 Bytes: 108 Cardinality: 1
9 MERGE JOIN Cost: 4,408,803 Bytes: 8,322 Cardinality: 146
3 VIEW DONBOT_DBA. Cost: 114,863 Bytes: 29,625,180 Cardinality: 987,506
2 WINDOW SORT PUSHED RANK Cost: 114,863 Bytes: 35,550,216 Cardinality: 987,506
1 TABLE ACCESS FULL TABLE EMPLOYEE_BIRTHDATES Cost: 108,983 Bytes: 35,550,216 Cardinality: 987,506
8 SORT JOIN Cost: 4,293,940 Bytes: 3,645 Cardinality: 135
7 VIEW DONBOT_DBA. Cost: 4,293,939 Bytes: 3,645 Cardinality: 135
6 SORT GROUP BY Cost: 4,293,939 Bytes: 4,185 Cardinality: 135
5 TABLE ACCESS BY INDEX ROWID TABLE PAY_INFO Cost: 4,293,938 Bytes: 4,185 Cardinality: 135
4 INDEX RANGE SCAN INDEX PAY_INFO_INDEX_ON_SITE Cost: 487,124 Cardinality: 402,683,034
13 VIEW DONBOT_DBA Cost: 22,275,300 Bytes: 1,160,143,257 Cardinality: 22,747,907
12 WINDOW SORT Cost: 22,275,300 Bytes: 841,672,559 Cardinality: 22,747,907
11 TABLE ACCESS BY INDEX ROWID TABLE EMPLOYEE_INFO Cost: 22,137,046 Bytes: 841,672,559 Cardinality: 22,747,907
10 INDEX RANGE SCAN INDEX EMPLOYEE_INFO_INDEX_ON_SITE Cost: 50,419 Cardinality: 38,019,281
32 VIEW DONBOT_DBA
31 UNION-ALL
15 FAST DUAL Cost: 2 Cardinality: 1
16 FAST DUAL Cost: 2 Cardinality: 1
17 FAST DUAL Cost: 2 Cardinality: 1
18 FAST DUAL Cost: 2 Cardinality: 1
19 FAST DUAL Cost: 2 Cardinality: 1
20 FAST DUAL Cost: 2 Cardinality: 1
21 FAST DUAL Cost: 2 Cardinality: 1
22 FAST DUAL Cost: 2 Cardinality: 1
23 FAST DUAL Cost: 2 Cardinality: 1
24 FAST DUAL Cost: 2 Cardinality: 1
25 FAST DUAL Cost: 2 Cardinality: 1
26 FAST DUAL Cost: 2 Cardinality: 1
27 FAST DUAL Cost: 2 Cardinality: 1
28 FAST DUAL Cost: 2 Cardinality: 1
29 FAST DUAL Cost: 2 Cardinality: 1
30 FAST DUAL Cost: 2 Cardinality: 1 Next, one with the parallel hint:
INSERT STATEMENT ALL_ROWS Cost: 26,507,111 Bytes: 114 Cardinality: 1
51 LOAD AS SELECT EMPLOYEES_BY_AGE_GROUP
50 PX COORDINATOR
49 PX SEND QC (RANDOM) PARALLEL_TO_SERIAL SYS.:TQ10005 :Q1005 Cost: 26,507,111 Bytes: 114 Cardinality: 1
48 HASH GROUP BY PARALLEL_COMBINED_WITH_PARENT :Q1005 Cost: 26,507,111 Bytes: 114 Cardinality: 1
47 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1005 Cost: 26,507,111 Bytes: 114 Cardinality: 1
46 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10004 :Q1004 Cost: 26,507,111 Bytes: 114 Cardinality: 1
45 HASH GROUP BY PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 26,507,111 Bytes: 114 Cardinality: 1
44 NESTED LOOPS PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 26,507,111 Bytes: 114 Cardinality: 1
25 HASH JOIN PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 26,507,109 Bytes: 108 Cardinality: 1
17 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 4,301,500 Bytes: 4,104 Cardinality: 72
16 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10003 :Q1003 Cost: 4,301,500 Bytes: 4,104 Cardinality: 72
15 HASH JOIN PARALLEL_COMBINED_WITH_PARENT :Q1003 Cost: 4,301,500 Bytes: 4,104 Cardinality: 72
7 BUFFER SORT PARALLEL_COMBINED_WITH_CHILD :Q1003
6 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1003 Cost: 4,293,939 Bytes: 1,809 Cardinality: 67
5 PX SEND BROADCAST PARALLEL_FROM_SERIAL SYS.:TQ10000 Cost: 4,293,939 Bytes: 1,809 Cardinality: 67
4 VIEW DONBOT_DBA. Cost: 4,293,939 Bytes: 1,809 Cardinality: 67
3 SORT GROUP BY Cost: 4,293,939 Bytes: 2,077 Cardinality: 67
2 TABLE ACCESS BY INDEX ROWID TABLE PAY_INFO Cost: 4,293,938 Bytes: 2,077 Cardinality: 67
1 INDEX RANGE SCAN INDEX PAY_INFO_INDEX_ON_SITE Cost: 487,124 Cardinality: 199,756,151
14 VIEW PARALLEL_COMBINED_WITH_PARENT DONBOT_DBA. :Q1003 Cost: 7,561 Bytes: 29,625,180 Cardinality: 987,506
13 WINDOW SORT PUSHED RANK PARALLEL_COMBINED_WITH_PARENT :Q1003 Cost: 7,561 Bytes: 35,550,216 Cardinality: 987,506
12 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1003 Cost: 7,561 Bytes: 35,550,216 Cardinality: 987,506
11 PX SEND HASH PARALLEL_TO_PARALLEL SYS.:TQ10002 :Q1002 Cost: 7,561 Bytes: 35,550,216 Cardinality: 987,506
10 WINDOW CHILD PUSHED RANK PARALLEL_COMBINED_WITH_PARENT :Q1002 Cost: 7,561 Bytes: 35,550,216 Cardinality: 987,506
9 PX BLOCK ITERATOR PARALLEL_COMBINED_WITH_CHILD :Q1002 Cost: 7,557 Bytes: 35,550,216 Cardinality: 987,506
8 TABLE ACCESS FULL TABLE PARALLEL_COMBINED_WITH_PARENT EMPLOYEE_BIRTHDATES :Q1002 Cost: 7,557 Bytes: 35,550,216 Cardinality: 987,506
24 BUFFER SORT PARALLEL_COMBINED_WITH_CHILD :Q1004
23 PX RECEIVE PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 22,205,605 Bytes: 575,504,145 Cardinality: 11,284,395
22 PX SEND HASH PARALLEL_FROM_SERIAL SYS.:TQ10001 Cost: 22,205,605 Bytes: 575,504,145 Cardinality: 11,284,395
21 VIEW DONBOT_DBA. Cost: 22,205,605 Bytes: 575,504,145 Cardinality: 11,284,395
20 WINDOW SORT Cost: 22,205,605 Bytes: 417,522,615 Cardinality: 11,284,395
19 TABLE ACCESS BY INDEX ROWID TABLE EMPLOYEE_INFO Cost: 22,137,046 Bytes: 417,522,615 Cardinality: 11,284,395
18 INDEX RANGE SCAN INDEX EMPLOYEE_INFO_INDEX_ON_SITE Cost: 50,419 Cardinality: 18,859,958
43 VIEW PARALLEL_COMBINED_WITH_PARENT DONBOT_DBA. :Q1004 Cost: 32 Bytes: 6 Cardinality: 1
42 UNION-ALL PARALLEL_COMBINED_WITH_PARENT :Q1004
26 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
27 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
28 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
29 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
30 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
31 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
32 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
33 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
34 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
35 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
36 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
37 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
38 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
39 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
40 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1
41 FAST DUAL PARALLEL_COMBINED_WITH_PARENT :Q1004 Cost: 2 Cardinality: 1 Finally, one without the parallel hint, and without the index hint on PAY_TABLE:
INSERT STATEMENT ALL_ROWS Cost: 23,348,654 Bytes: 114 Cardinality: 1
34 LOAD AS SELECT ARMYMP.EMPLOYEES_BY_AGE
33 HASH GROUP BY Cost: 23,348,654 Bytes: 114 Cardinality: 1
32 NESTED LOOPS Cost: 23,348,653 Bytes: 114 Cardinality: 1
13 HASH JOIN Cost: 23,348,621 Bytes: 108 Cardinality: 1
8 MERGE JOIN Cost: 1,073,202 Bytes: 8,322 Cardinality: 146
3 VIEW DONBOT_DBA. Cost: 114,863 Bytes: 29,625,180 Cardinality: 987,506
2 WINDOW SORT PUSHED RANK Cost: 114,863 Bytes: 35,550,216 Cardinality: 987,506
1 TABLE ACCESS FULL TABLE EMPLOYEE_BIRTHDATES Cost: 108,983 Bytes: 35,550,216 Cardinality: 987,506
7 SORT JOIN Cost: 958,339 Bytes: 3,645 Cardinality: 135
6 VIEW DONBOT_DBA. Cost: 958,338 Bytes: 3,645 Cardinality: 135
5 SORT GROUP BY Cost: 958,338 Bytes: 4,185 Cardinality: 135
4 TABLE ACCESS FULL TABLE PAY_INFO Cost: 958,337 Bytes: 4,185 Cardinality: 135
12 VIEW DONBOT_DBA. Cost: 22,275,300 Bytes: 1,160,143,257 Cardinality: 22,747,907
11 WINDOW SORT Cost: 22,275,300 Bytes: 841,672,559 Cardinality: 22,747,907
10 TABLE ACCESS BY INDEX ROWID TABLE EMPLOYEE_INFO Cost: 22,137,046 Bytes: 841,672,559 Cardinality: 22,747,907
9 INDEX RANGE SCAN INDEX EMPLOYEE_INFO_UIC Cost: 50,419 Cardinality: 38,019,281
31 VIEW DONBOT_DBA. Cost: 32 Bytes: 6 Cardinality: 1
30 UNION-ALL
14 FAST DUAL Cost: 2 Cardinality: 1
15 FAST DUAL Cost: 2 Cardinality: 1
16 FAST DUAL Cost: 2 Cardinality: 1
17 FAST DUAL Cost: 2 Cardinality: 1
18 FAST DUAL Cost: 2 Cardinality: 1
19 FAST DUAL Cost: 2 Cardinality: 1
20 FAST DUAL Cost: 2 Cardinality: 1
21 FAST DUAL Cost: 2 Cardinality: 1
22 FAST DUAL Cost: 2 Cardinality: 1
23 FAST DUAL Cost: 2 Cardinality: 1
24 FAST DUAL Cost: 2 Cardinality: 1
25 FAST DUAL Cost: 2 Cardinality: 1
26 FAST DUAL Cost: 2 Cardinality: 1
27 FAST DUAL Cost: 2 Cardinality: 1
28 FAST DUAL Cost: 2 Cardinality: 1
29 FAST DUAL Cost: 2 Cardinality: 1 I am surprised the cost without the index is less than the cost with it, considering that it is replacing a Table Access By Index Rowid with a Table Access Full on a table with 1 billion (1000 million) records.
Igor - two questions:
One - I cannot find "Materialize" in the hints in the SQL Reference anywhere. What does it do?
Two - does replacing subqueries with With clauses make that much of a difference? -
My mac takes a long time to log on, running slow
my imac is running slow & takes a long time logging on, anyone knows why this happens?
If you have more than ten or so files or folders on your Desktop, move them, temporarily at least, somewhere else in your home folder.
Disconnect all wired peripherals except keyboard, mouse, and monitor, if applicable. Launch the usual set of applications you use when you notice the problem.
Step 1
Launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Activity Monitor in the page that opens.
Select the CPU tab.
Select All Processes from the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.
Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?
Step 2
Launch the Console application in the same way as above, and select “kernel.log” from the file list. Post the dozen or so most recent messages in the log — the text, please, not a screenshot.
If there are runs of repeated messages, post only one example of each. Do not post many repetitions of the same message. -
MacBook Pro Stalls/Running slow since Mavericks Installation
On the advice of the more experienced here is a new thread.
Since installing Mavericks my MBP has gone from pretty much an instant response to requests, to stalling, the spinning pinwheel, longer startup and shutdown times, as well as slower access to websites (Chrome and Safari, though Safari appears slower).
I have been advised to run EtreCheck when I first joined a post regarding the same problem. I posted the results and was advised to work through some of the issues. This is the initial test result and the very much appreciated advice.
NOTE - EXTENSIVE TEXT TO FOLLOW.
I don't have a specific fix from your report, but I can point out what other users have had issues with.
JonUK_LTD wrote:
Kernel Extensions:
com.Cycling74.driver.Soundflower (1.5.1)
com.paragon-software.filesystems.ntfs (82)
Problem System Launch Agents:
[System] com.paragon.NTFS.trial.plist 3rd-Party support link
[System] com.paragon.NTFS.upd.plist 3rd-Party support link
Launch Daemons:
[System] com.adobe.fpsaud.plist 3rd-Party support link
[System] com.sierrawireless.SwitchTool.plist 3rd-Party support link
User Launch Agents:
[not loaded] com.google.keystone.agent.plist 3rd-Party support link
[not loaded] com.macpaw.CleanMyMac.helperTool.plist 3rd-Party support link
[not loaded] com.macpaw.CleanMyMac.trashSizeWatcher.plist 3rd-Party support link
[not loaded] com.macpaw.CleanMyMac.volumeWatcher.plist 3rd-Party support link
[not loaded] uk.co.markallan.clamxav.freshclam.plist 3rd-Party support link
User Login Items:
Clocks
FaceTab Pro for Facebook
GrowlTunes
Yoink
Dropbox
SpeechSynthesisServer
Internet Plug-ins:
LogMeInSafari64: Version: 1.0.730 3rd-Party support link
Default Browser: Version: 537 - SDK 10.9
Flip4Mac WMV Plugin: Version: 2.4.4.2 3rd-Party support link
OfficeLiveBrowserPlugin: Version: 12.3.6 3rd-Party support link
AdobePDFViewerNPAPI: Version: 10.1.6 3rd-Party support link
FlashPlayer-10.6: Version: 12.0.0.70 - SDK 10.6 3rd-Party support link
LogMeIn: Version: 1.0.730 3rd-Party support link
Silverlight: Version: 5.1.20913.0 - SDK 10.6 3rd-Party support link
Flash Player: Version: 12.0.0.70 - SDK 10.6 3rd-Party support link
LogMeInSafari32: Version: 1.0.730 3rd-Party support link
iPhotoPhotocast: Version: 7.0
QuickTime Plugin: Version: 7.7.3
AdobePDFViewer: Version: 10.1.6 3rd-Party support link
JavaAppletPlugin: Version: 14.8.0 - SDK 10.9 Outdated! Update
Safari Extensions:
Add To Amazon Wish List: Version: 1.4
User Internet Plug-ins:
Google Earth Web Plug-in: Version: 7.1 3rd-Party support link
fbplugin_1_0_1: Version: (null) 3rd-Party support link
fbplugin_1_0_3: Version: (null) 3rd-Party support link
3rd Party Preference Panes:
Connect360 3rd-Party support link
Flash Player 3rd-Party support link
Flip4Mac WMV 3rd-Party support link
Growl 3rd-Party support link
MacFUSE 3rd-Party support link
Paragon NTFS for Mac ® OS X 3rd-Party support link
Old Applications:
Plex Media Server: Version: 0.9.3.4 - SDK 10.5 3rd-Party support link
Plex Plug-in Installer: Version: 1.0 - SDK 10.5 3rd-Party support link
HyperDesktop: Version: 1.1 - SDK 10.0 3rd-Party support link
Top Processes by CPU:
3% WindowServer
2% mdworker
2% MenuTab Pro for Facebook
1% EtreCheck
0% mds_stores
Top Processes by Memory:
176 MB softwareupdated
156 MB com.apple.IconServicesAgent
123 MB MenuTab Pro for Facebook
115 MB Google Chrome
70 MB Dropbox
Red is the items I'd look at these are mostly 'system level' - they can alter a lot in the OS. Check the developers website, update or remove the apps if the developer doesn't say it supports 10.9 or if you can live without them.
Soundflower is out of date & it is a 'kernel extension', the kernel is the core of the OS - you don't want any old code running here.
The installer has a removal tool too https://code.google.com/p/soundflower/ so update or remove it if you don't use it.
Update or remove Paragon's NTFS tool, it is running at a system level & it's background jobs seem to be in a 'problem state', it also has something running in the kernel.
Adobe has an updater running, try to ensure Adobe's apps are all up to date, just incase they have stopped checking. Repeat with Google's apps, just launch the apps & look in the 'App menu' or the Help menu for updates. These companies tend to reinstall the updaters if you try to delete them, so there it little you can do but keep the apps updated.
It's odd that all your User Launch Agents: are not loaded, these are background jobs that start on login (if they are in a loaded state). The same principle applies, update or remove the related apps if they are not needed.
CleanMyMac is a concern - there are lots of posts here claiming it can break the OS - it can help you to remove files that are installed by Apple which is not the best idea. I am unconvinced that running 'maintenance utilities' all the time is a good idea, however the app removal tool may be OK for cases where a developer doesn't have an uninstaller. 'Cleaner apps' use RAM & can spend time scanning files which can slow other tasks. Search here for varied opinions on CleanMyMac. I also use ClamXAV, ensure that is upto date & so check it's engine & rules are current.
The purple items are 'user level' items (run on login of your account).
There is a simple way to see if your issues are because of 'user level' items, create a new test user account & login as that user. If the Mac is stable you can assume it is something within your 'user items'.
Check that you need the Login Items running every time you login. They are listed in System Preferences> Users & groups > select your account… login items tab.
You appear to have 3 LogMeIn internet plugins installed - is Safari behaving OK or running slow? I would consider removing most plugins & then installing them as you need them. You can look inside /Library/Internet Plug-Ins/ and ~/Library/Internet Plug-Ins/ to remove them manually.
~/Library is your 'home library' Use the Finders Go Menu > Open Folder… and enter ~/Library to reveal it. Apple hid this Library folder.
I'd be tempted to remove the Java applet plugin - old Java is a real secuity risk & Safari has probably disabled this for you already.
There seems to be 2 Facebook plugins installed (probably inside your ~/Library/Internet Plug-Ins/). Remove the oldest one & look for the newest release. Update the Safari Extension if it needs it too.
The Preference Panes are installed in /Library/PreferencePanes/ and ~/Library/PreferencePanes/. Open System prefs & launch each third party pref pane (the bottom rows) & check for updates if possible. These also have an ability to modify the OS, so any errors could effect everything. You can usually right click (or ctrl+click) to remove them from the preferences (it removes them from the OS, but may leave any libraries or extra tools behind - see if the developer has removal instructions).
I see you have Plex installed, does this run very often? I find it can drag a Mac to a slow crawl when it is indexing. I suspect Connect360 may do similar things, but I don't really know for sure what it does .
MenuTab for Facebook seems to be doing something with RAM & CPU, update or remove if you don't need it.
That may all be daunting, but it should help. Start with the system level items, and then look at updating the other items. You may find things improve after a cleanup & a reboot.
This was extremely helpful and I have gone as far as my knowledge will allow for now. I did make a bootable clone of the main HDD prior to doing anything, and now there seems to be little improvment following the suggestions made. Also along the way MacFuse was deleted and well as Flip4Mac and NTFS.
Things are far from perfect though and the MBP still stalls and is performing very poorly.
I have run another EtreCheck, results below;
Hardware Information:
MacBook Pro (13-inch, Mid 2009)
MacBook Pro - model: MacBookPro5,5
1 2.26 GHz Intel Core 2 Duo CPU: 2 cores
4 GB RAM
Video Information:
NVIDIA GeForce 9400M - VRAM: 256 MB
System Software:
OS X 10.9.2 (13C64) - Uptime: 0 days 22:21:3
Disk Information:
FUJITSU MJA2250BH FFS G1 disk0 : (250.06 GB)
EFI (disk0s1) <not mounted>: 209.7 MB
Macintosh HD (disk0s2) / [Startup]: 249.2 GB (71.96 GB free)
Recovery HD (disk0s3) <not mounted>: 650 MB
HL-DT-ST DVDRW GS23N
USB Information:
Apple Inc. Built-in iSight
Western Digital Ext HDD 1021 2 TB
EFI (disk1s1) <not mounted>: 209.7 MB
TimeMachine BackUp (disk1s2) /Volumes/TimeMachine BackUp: 265.79 GB (101.83 GB free)
MAC OS (disk1s3) /Volumes/MAC OS: 1.22 TB (1.09 TB free)
MS DOS (disk1s4) /Volumes/MS DOS: 510.11 GB (509.98 GB free)
Apple Internal Memory Card Reader
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Computer, Inc. IR Receiver
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
FireWire Information:
Thunderbolt Information:
Problem System Launch Agents:
[System] com.paragon.NTFS.trial.plist 3rd-Party support link
[System] com.paragon.NTFS.upd.plist 3rd-Party support link
Launch Daemons:
[System] com.adobe.fpsaud.plist 3rd-Party support link
[System] com.bombich.ccc.plist 3rd-Party support link
[System] com.sierrawireless.SwitchTool.plist 3rd-Party support link
User Launch Agents:
[not loaded] com.adobe.ARM.[...].plist 3rd-Party support link
[not loaded] com.google.keystone.agent.plist 3rd-Party support link
[not loaded] com.macpaw.CleanMyMac.helperTool.plist 3rd-Party support link
[not loaded] com.macpaw.CleanMyMac.trashSizeWatcher.plist 3rd-Party support link
[not loaded] com.macpaw.CleanMyMac.volumeWatcher.plist 3rd-Party support link
[not loaded] uk.co.markallan.clamxav.freshclam.plist 3rd-Party support link
User Login Items:
FaceTab Pro for Facebook
Yoink
Internet Plug-ins:
FlashPlayer-10.6: Version: 12.0.0.70 - SDK 10.6 3rd-Party support link
Flash Player: Version: 12.0.0.70 - SDK 10.6 3rd-Party support link
Safari Extensions:
Add To Amazon Wish List: Version: 1.4
Audio Plug-ins:
BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
AirPlay: Version: 2.0 - SDK 10.9
AppleAVBAudio: Version: 203.2 - SDK 10.9
iSightAudio: Version: 7.7.3 - SDK 10.9
iTunes Plug-ins:
Quartz Composer Visualizer: Version: 1.4 - SDK 10.9
User Internet Plug-ins:
fbplugin_1_0_3: Version: (null) 3rd-Party support link
Google Earth Web Plug-in: Version: 7.1 3rd-Party support link
3rd Party Preference Panes:
Connect360 3rd-Party support link
Flash Player 3rd-Party support link
Growl 3rd-Party support link
Old Applications:
Microsoft AutoUpdate: Version: 2.3.6 - SDK 10.4 3rd-Party support link
/Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
Epson Printer Utility 4: Version: 9.17 - SDK 10.5 3rd-Party support link
/Library/Printers/EPSON/InkjetPrinter2/Utility/UT4/Epson Printer Utility 4.app
/Library/Application Support/Microsoft/MERP2.0
Microsoft Error Reporting: Version: 2.2.9 - SDK 10.4 3rd-Party support link
Microsoft Ship Asserts: Version: 1.1.4 - SDK 10.4 3rd-Party support link
/Users/[redacted]/Library/Application Support/Plex
Plex Media Server: Version: 0.9.3.4 - SDK 10.5 3rd-Party support link
Plex Plug-in Installer: Version: 1.0 - SDK 10.5 3rd-Party support link
GrowlTunes: Version: 1.2.2 - SDK 10.5 3rd-Party support link
WePrint Server: Version: 2.705 - SDK 10.4 3rd-Party support link
HyperDesktop: Version: 1.1 - SDK 10.0 3rd-Party support link
iCamSource: Version: 2.4.1 - SDK 10.4 3rd-Party support link
SLLauncher: Version: 1.0 - SDK 10.5 3rd-Party support link
/Library/Application Support/Microsoft/Silverlight/OutOfBrowser/SLLauncher.app
Time Machine:
Skip System Files: NO
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 232.09 GB Disk used: 165.07 GB
Destinations:
TimeMachine BackUp [Local] (Last used)
Total size: 247.53 GB
Total number of backups: 13
Oldest backup: 2014-02-24 19:18:34 +0000
Last backup: 2014-03-01 14:13:56 +0000
Size of backup disk: Too small
Backup size 247.53 GB < (Disk used 165.07 GB X 3)
Time Machine details may not be accurate.
All volumes being backed up may not be listed.
Top Processes by CPU:
3% WindowServer
1% EtreCheck
1% Folder Actions Dispatcher
0% mdworker
0% MenuTab Pro for Facebook
Top Processes by Memory:
152 MB MenuTab Pro for Facebook
115 MB com.apple.WebKit.WebContent
111 MB mds_stores
111 MB Google Chrome
98 MB Mail
Virtual Memory Information:
1.04 GB Free RAM
1.47 GB Active RAM
176 MB Inactive RAM
660 MB Wired RAM
4.08 GB Page-ins
21 MB Page-outs
Also need to mention that the login items have all been disabled (though showing in these results).
Any advice on these specific speed related issues and how to return to the "old ways" would be very much appreciated.
Thanks in advance,
Jon.Myth of the Dirty Mac
I would un-install CleanMyMac. It has caused problems for others and in some cases has gone so far as to wreck their system.
CleanMyMac - Uninstall
CleanMyMac2 Un-install
Some other things to look at/try.
Activity Monitor - Mavericks
Activity Monitor in Mavericks has significant changes
Performance Guide
Why is my computer slow
Why your Mac runs slower than it should
Slow Mac After Mavericks
Things you can do to resolve slowdowns see post by Kappy -
My Mac feels as if it is running slower these last couple of months. I have thought of pursuing a commercially available "clean up" product, but thought I would try the community first and also for pointers using the Mac's own internal diagnostics or system improvement capabilities. Any and all advice is most welcome. I have a 250GB hard drive that is half full, I always update to latest revisions and have an extra high-speed internet connection. Computer is not heavily loaded with apps and typically using Firefox for browsing. (MS Office for Mac as well, but usually limited to one program such as MS Word or Excel at a time.) No heavy graphics utilization. Videos from the internet load slowly and some are choppy. Even scrolling just doesn't seem "brisk".
Thank you,
TomDisconnect all wired peripherals except keyboard, mouse, and monitor, if applicable. Launch the usual set of applications you use when you notice the slowdown.
Step 1
Launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Activity Monitor in the page that opens.
Select the CPU tab. Select All Processes from the menu in the toolbar, if not already selected. Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.
Now select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?
Step 2
Launch the Console application in the same way as above, and select “kernel.log” from the file list. Post the dozen or so most recent messages in the log – the text, please, not a screenshot. If there are repeats, please post only one example of each repeated message. -
My mac is running slow, what should I do to clean it up?
Things You Can Do To Resolve Slow Downs
If your computer seems to be running slower here are some things you can do:
Start with visits to: OS X Maintenance - MacAttorney;
The X Lab: The X-FAQs;
The Safe Mac » Mac Performance Guide;
The Safe Mac » The myth of the dirty Mac;
Mac maintenance Quick Assist.
Boot into Safe Mode then repair your hard drive and permissions:
Repair the Hard Drive and Permissions Pre-Lion
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
Repair the Hard Drive - Lion/Mountain Lion/Mavericks
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the Utilites Menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD disk icon and click on the arrow button below.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
Restart your computer normally and see if this has helped any. Next do some maintenance:
For situations Disk Utility cannot handle the best third-party utility is Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible.
Note: Alsoft ships DW on a bootable DVD that will startup Macs running Snow Leopard or earlier. It cannot start Macs that came with Lion or later pre-installed, however, DW will work on those models.
Suggestions for OS X Maintenance
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts was significantly reduced since Tiger. These utilities have limited or no functionality with Snow Leopard or later and should not be installed.
OS X automatically defragments files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive.
Helpful Links Regarding Malware Protection
An excellent link to read is Tom Reed's Mac Malware Guide.
Also, visit The XLab FAQs and read Detecting and avoiding malware and spyware.
See these Apple articles:
Mac OS X Snow Leopard and malware detection
OS X Lion- Protect your Mac from malware
OS X Mountain Lion- Protect your Mac from malware
About file quarantine in OS X
If you require anti-virus protection I recommend using VirusBarrier Express 1.1.6 or Dr.Web Light both from the App Store. They're both free, and since they're from the App Store, they won't destabilize the system. (Thank you to Thomas Reed for these recommendations.)
Troubleshooting Applications
I recommend downloading a utility such as TinkerTool System, OnyX, Mavericks Cache Cleaner, or Cocktail that you can use for removing old log files and archives, clearing caches, etc. Corrupted cache, log, or temporary files can cause application or OS X crashes as well as kernel panics.
If you have Snow Leopard or Leopard, then for similar repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the command line. Note that AppleJack 1.5 is required for Leopard. AppleJack 1.6 is compatible with Snow Leopard. Applejack does not work with Lion and later.
Basic Backup
For some people Time Machine will be more than adequate. Time Machine is part of OS X. There are two components:
1. A Time Machine preferences panel as part of System Preferences;
2. A Time Machine application located in the Applications folder. It is
used to manage backups and to restore backups. Time Machine
requires a backup drive that is at least twice the capacity of the
drive being backed up.
Alternatively, get an external drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Carbon Copy Cloner
2. Get Backup
3. Deja Vu
4. SuperDuper!
5. Synk Pro
6. Tri-Backup
Visit The XLab FAQs and read the FAQ on backup and restore. Also read How to Back Up and Restore Your Files. For help with using Time Machine visit Pondini's Time Machine FAQ for help with all things Time Machine.
Referenced software can be found at MacUpdate.
Additional Hints
Be sure you have an adequate amount of RAM installed for the number of applications you run concurrently. Be sure you leave a minimum of 10% of the hard drive's capacity as free space.
Add more RAM. If your computer has less than 2 GBs of RAM and you are using OS X Leopard or later, then you can do with more RAM. Snow Leopard and Lion work much better with 4 GBs of RAM than their system minimums. The more concurrent applications you tend to use the more RAM you should have.
Always maintain at least 15 GBs or 10% of your hard drive's capacity as free space, whichever is greater. OS X is frequently accessing your hard drive, so providing adequate free space will keep things from slowing down.
Check for applications that may be hogging the CPU:
Pre-Mavericks
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Mavericks and later
Open Activity Monitor in the Utilities folder. Select All Processes from the View menu. Click on the CPU tab in the toolbar. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Often this problem occurs because of a corrupted cache or preferences file or an attempt to write to a corrupted log file. -
Macbook Pro runs slow after upgrade
I have just upgraded to Mountain Lion 10.8.3 (from 10.6.8) on my 2011 i7 Macbook Pro.
My computer now runs slower than ever. Boot up takes forever. Shut down takes for ever. I get constant beach ball.
I am shocked at how horrible this OS is and though there are some "nifty" features, it runs so poorly It's hard to enjoy them.
So my question is, is this a common issue with Mountain Lion or is it a coincidence and perhaps something is wrong with my computer?
Thanks!First, back up all data immediately, as your boot drive might be failing.
There are a few other possible causes of generalized slow performance that you can rule out easily.
Reset the System Management Controller.
If you have many image or video files on the Desktop with preview icons, move them to another folder.
If applicable, uncheck all boxes in the iCloud preference pane.
Disconnect all non-essential wired peripherals and remove aftermarket expansion cards, if any.
Check your keychains in Keychain Access for excessively duplicated items.
Otherwise, take the steps below when you notice the slowdown.
Step 1
Launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Activity Monitor in the icon grid.
Select the CPU tab of the Activity Monitor window.
Select All Processes from the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.
Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?
Next, select the Disk Activity tab. Post the approximate values shown for Reads in/sec and Writes out/sec (not Reads in and Writes out.)
Step 2
If you have more than one user account, you must be logged in as an administrator to carry out this step.
Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Select the 50 or so most recent entries in the log. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V). You're looking for entries at the end of the log, not at the beginning.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long. -
my mac is running slow, the spinning beach ball constantly appears. it seems that when i am in the apple store with fast wifi its a bit better. genius at the apple store checked the hard drive, it's all fine. what can it be? can it be a software issue with the wifi?
also i noted that it has only been doing this since quite recently, before it was fine
please help!First, back up all data immediately, as your boot drive might be failing.
Step 1
This diagnostic procedure will query the log for messages that may indicate a system issue. It changes nothing, and therefore will not, in itself, solve your problem.
If you have more than one user account, these instructions must be carried out as an administrator.
Triple-click anywhere in the line below on this page to select it:
syslog -k Sender kernel -k Message CReq 'GPU |hfs: Ru|I/O e|find tok|n Cause: -|NVDA\(|timed? ?o' | tail | open -ef
Copy the selected text to the Clipboard by pressing the key combination command-C.
Launch the Terminal application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Terminal in the icon grid.
Paste into the Terminal window (command-V). I've tested these instructions only with the Safari web browser. If you use another browser, you may have to press the return key.
The command may take a noticeable amount of time to run. Wait for a new line ending in a dollar sign (“$”) to appear.
A TextEdit window will open with the output of the command. Normally the command will produce no output, and the window will be empty. If the TextEdit window (not the Terminal window) has anything in it, stop here and post it — the text, please, not a screenshot. The title of the TextEdit window doesn't matter, and you don't need to post that.
Step 2
There are a few other possible causes of generalized slow performance that you can rule out easily.
Disconnect all non-essential wired peripherals and remove aftermarket expansion cards, if any.
Reset the System Management Controller.
Run Software Update. If there's a firmware update, install it.
If you're booting from an aftermarket SSD, see whether there's a firmware update for it.
If you have a portable computer, check the cycle count of the battery. It may be due for replacement.
If you have many image or video files on the Desktop with preview icons, move them to another folder.
If applicable, uncheck all boxes in the iCloud preference pane. See whether there's any change.
Check your keychains in Keychain Access for excessively duplicated items.
Boot into Recovery mode, launch Disk Utility, and run Repair Disk.
If you have a MacBook Pro with dual graphics, disable automatic graphics switching in the Energy Saverpreference pane for better performance at the cost of shorter battery life.
Step 3
When you notice the problem, launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Activity Monitor in the icon grid.
Select the CPU tab of the Activity Monitor window.
Select All Processes from the View menu or the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for User, System, and Idle at the bottom of the window.
Select the Memory tab. What value is shown in the bottom part of the window for Swap used?
Next, select the Disk tab. Post the approximate values shown for Reads in/sec and Writes out/sec (not Reads in andWrites out.)
Step 4
If you have more than one user account, you must be logged in as an administrator to carry out this step.
Launch the Console application in the same way you launched Activity Monitor. Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Select the 50 or so most recent entries in the log. Copy them to the Clipboard by pressing the key combinationcommand-C. Paste into a reply to this message (command-V). You're looking for entries at the end of the log, not at the beginning.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some personal information, such as your name, may appear in the log. Anonymize before posting. That should be easy to do if your extract is not too long. -
I recently updated? to Lion from 10.6.8(snow leopard), and things seem to be running slower. Has anyone had similar problems? I have Feb 2011 Macbook pro 13" 2.3 Ghz.
As Shootist pointed out, the system uses more power.
However, initially it will reindex the hard drive for spotlight, which will slow things down temporarily.
It also must rebuild caches that eventually will speed things up.
If it has completed indexing the hard drive (no dot pulsing in the spyglass), then there might be something wrong.
Start by booting into the Recovery HD (a partition created with Lion that has Disk Utility and reinstallation options) by holding down cmd-r when you restart. You can let go when the gray screen appears.
When it boots, select Disk Utility and Repair the drive.
If that doesn't speed things up, try re-installing the OS from the same Recovery HD. It won't delete any of your files, but it has helped some people whose Macs ran slow after installing Lion.
Also, how much memory do you have? Lion needs RAM so maxing your Mac out might also help. -
Why oracle text index column taking long time
why oracle text index column is taking long time to return result.I created text index on a column if I run the query on a single table result is very fast.If I join table with other table (10 records only )
it is taking long time but in explain plan it is searching by index only.
I created this index for searching a varchar2 column,the data is comma seperated values like ( UK,US,IT,BR) and the table having records 20 lakhs.Normally if I query with like operater
( like '%US%' ) it is taking full table scan because I am using '%' both sides. Please help me on this regard how to search the data with less time. Here is may sample code and explain plan.
SQL*Plus: Release 9.2.0.1.0 - Production on Wed Jan 28 16:54:22 2009
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
Connected to:
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.1.0 - Production
SQL> set timing on
SQL> set linesize 180
SQL> explain plan for SELECT T.esongid FROM (SELECT A.ESONGID FROM wcmedeco.EDECO_ESONGS_TERR_CTRY
A WHERE CONTAINS(A.TERR_CTRY_NAMES,'US')>0
2 GROUP BY A.ESONGID)K,T
3 WHERE K.ESONGID=T.ESONGID;
Explained.
Elapsed: 00:00:00.01
SQL> select *from table(dbms_xplan.display);
PLAN_TABLE_OUTPUT
| Id | Operation | Name | Rows | Bytes | Cost |
| 0 | SELECT STATEMENT | | 1 | 26 | 4 |
| 1 | NESTED LOOPS | | 1 | 26 | 4 |
| 2 | VIEW | | 1 | 13 | 4 |
| 3 | SORT GROUP BY | | 1 | 89 | 4 |
| 4 | TABLE ACCESS BY INDEX ROWID| EDECO_ESONGS_TERR_CTRY | 1 | 89 | 2 |
| 5 | DOMAIN INDEX | IDX_TERR_CTRY_NAMES | | | 0 |
| 6 | INDEX RANGE SCAN | IDX_ESONGID_T | 1 | 13 | 1 |
PLAN_TABLE_OUTPUT
Note: cpu costing is off, 'PLAN_TABLE' is old version
14 rows selected.
Elapsed: 00:00:00.00
SQL> Regards,
RajasekharYou have not formatted your code properly so we cannot see the query you're executing. Please put some line breaks in.
Secondly, how fresh are the statistics on those tables? Are you really returning one record out of twenty million?
Cheers, APC
blog: http://radiofreetooting.blogspot.com -
Gather_table_stats with a method opt of "for all indexed columns size 0"
I have 9 databases I support that contain the same structure, and very similar data concentrations. We are seeing inconsistent performance in the different databases due to bind variable peeking.. I have tracked it down to the Min and Max values that are gathered during the analyze. I analyze from one cluster, and export/import those statistics into the other clusters.. I then go about locking down the stats gathered. Some of the statistics are on tables that contain transient data (the older data is purged, and new data gets a new PK sequence number).
Since I am gathering statistics with a 'FOR ALL INDEXED COLUMNS SIZE 1', a min and max value are grabbed. This value is only appropriate for a short period of time, and only for a specific database. I do want oracle to know the density to help calculate, but I don't want cardinality based on whether the current bind values fall in this range..
Example
COLUMN PK
When I analyze the min is 1 and max is 5. I then let the database run, and the new min is 100 and max is 105.. same number of rows, but different min/max. At first a select * from table where pk>=1 and pk <=5 would return a cardinality of 5.. Later, a seelct * from tables where pk>=100 and pk<=105 would return a cardinaility 1.
Any ideas how to avoid this other than trying set min and max to something myself (like min =1 max = 99999999). ??MarkDPowell wrote:
The Oracle documentation on bind variable peeking said it did not peek without histograms and I cannot remember ever seeing on 9.2 where the trace showed otherwise. Mark,
see this simple test case run on 9.2.0.8. No histograms, but bind variable peeking, as you can see that the EXPLAIN PLAN output generated by AUTOTRACE differs from the estimated cardinality of the actual plan used at runtime.
Which documentation do you refer to?
SQL>
SQL> alter session set nls_language = 'AMERICAN';
Session altered.
SQL>
SQL> drop table bind_peek_test;
Table dropped.
SQL>
SQL> create table bind_peek_test
2 as
3 select
4 100 as n1
5 , cast(dbms_random.string('a', 20) as varchar2(20)) as filler
6 from
7 dual
8 connect by
9 level <= 1000;
Table created.
SQL>
SQL> exec dbms_stats.gather_table_stats(null, 'bind_peek_test', method_opt=>'FOR ALL COLUMNS SIZE 1')
PL/SQL procedure successfully completed.
SQL>
SQL> variable n number
SQL>
SQL> variable n2 number
SQL>
SQL> alter system flush shared_pool;
System altered.
SQL>
SQL> exec :n := 1; :n2 := 50;
PL/SQL procedure successfully completed.
SQL>
SQL> set autotrace traceonly
SQL>
SQL> select * from bind_peek_test where n1 >= :n and n1 <= :n2;
no rows selected
Execution Plan
0 SELECT STATEMENT Optimizer=CHOOSE (Cost=2 Card=1000 Bytes=24
000)
1 0 FILTER
2 1 TABLE ACCESS (FULL) OF 'BIND_PEEK_TEST' (Cost=2 Card=100
0 Bytes=24000)
Statistics
236 recursive calls
0 db block gets
35 consistent gets
0 physical reads
0 redo size
299 bytes sent via SQL*Net to client
372 bytes received via SQL*Net from client
1 SQL*Net roundtrips to/from client
4 sorts (memory)
0 sorts (disk)
0 rows processed
SQL>
SQL> set autotrace off
SQL>
SQL> select
2 cardinality
3 from
4 v$sql_plan
5 where
6 cardinality is not null
7 and hash_value in (
8 select
9 hash_value
10 from
11 v$sql
12 where
13 sql_text like 'select * from bind_peek_test%'
14 );
CARDINALITY
1
SQL>
SQL> alter system flush shared_pool;
System altered.
SQL>
SQL> exec :n := 100; :n2 := 100;
PL/SQL procedure successfully completed.
SQL>
SQL> set autotrace traceonly
SQL>
SQL> select * from bind_peek_test where n1 >= :n and n1 <= :n2;
1000 rows selected.
Execution Plan
0 SELECT STATEMENT Optimizer=CHOOSE (Cost=2 Card=1000 Bytes=24
000)
1 0 FILTER
2 1 TABLE ACCESS (FULL) OF 'BIND_PEEK_TEST' (Cost=2 Card=100
0 Bytes=24000)
Statistics
236 recursive calls
0 db block gets
102 consistent gets
0 physical reads
0 redo size
34435 bytes sent via SQL*Net to client
1109 bytes received via SQL*Net from client
68 SQL*Net roundtrips to/from client
4 sorts (memory)
0 sorts (disk)
1000 rows processed
SQL>
SQL> set autotrace off
SQL>
SQL> select
2 cardinality
3 from
4 v$sql_plan
5 where
6 cardinality is not null
7 and hash_value = (
8 select
9 hash_value
10 from
11 v$sql
12 where
13 sql_text like 'select * from bind_peek_test%'
14 );
CARDINALITY
1000
SQL>
SQL> spool offRegards,
Randolf
Oracle related stuff blog:
http://oracle-randolf.blogspot.com/
SQLTools++ for Oracle (Open source Oracle GUI for Windows):
http://www.sqltools-plusplus.org:7676/
http://sourceforge.net/projects/sqlt-pp/ -
Macbook pro running slow, macbook pro running slow
Hi. My Macbook pro is about three years old and running slower and slower. I'm not savvy with computers. Are there any things I can do to speed things up?
Things You Can Do To Resolve Slow Downs
If your computer seems to be running slower here are some things you can do:
Start with visits to: OS X Maintenance - MacAttorney;
The X Lab: The X-FAQs;
The Safe Mac » Mac Performance Guide;
The Safe Mac » The myth of the dirty Mac;
Mac maintenance Quick Assist.
Boot into Safe Mode then repair your hard drive and permissions:
Repair the Hard Drive and Permissions Pre-Lion
Boot from your OS X Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
Repair the Hard Drive - Lion/Mountain Lion/Mavericks
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the Utilites Menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD disk icon and click on the arrow button below.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported, then click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
Restart your computer normally and see if this has helped any. Next do some maintenance:
For situations Disk Utility cannot handle the best third-party utility is Disk Warrior; DW only fixes problems with the disk directory, but most disk problems are caused by directory corruption; Disk Warrior 4.x is now Intel Mac compatible.
Note: Alsoft ships DW on a bootable DVD that will startup Macs running Snow Leopard or earlier. It cannot start Macs that came with Lion or later pre-installed, however, DW will work on those models.
Suggestions for OS X Maintenance
OS X performs certain maintenance functions that are scheduled to occur on a daily, weekly, or monthly period. The maintenance scripts run in the early AM only if the computer is turned on 24/7 (no sleep.) If this isn't the case, then an excellent solution is to download and install a shareware utility such as Macaroni, JAW PseudoAnacron, or Anacron that will automate the maintenance activity regardless of whether the computer is turned off or asleep. Dependence upon third-party utilities to run the periodic maintenance scripts was significantly reduced since Tiger. These utilities have limited or no functionality with Snow Leopard or later and should not be installed.
OS X automatically defragments files less than 20 MBs in size, so unless you have a disk full of very large files there's little need for defragmenting the hard drive.
Helpful Links Regarding Malware Protection
An excellent link to read is Tom Reed's Mac Malware Guide.
Also, visit The XLab FAQs and read Detecting and avoiding malware and spyware.
See these Apple articles:
Mac OS X Snow Leopard and malware detection
OS X Lion- Protect your Mac from malware
OS X Mountain Lion- Protect your Mac from malware
About file quarantine in OS X
If you require anti-virus protection I recommend using VirusBarrier Express 1.1.6 or Dr.Web Light both from the App Store. They're both free, and since they're from the App Store, they won't destabilize the system. (Thank you to Thomas Reed for these recommendations.)
Troubleshooting Applications
I recommend downloading a utility such as TinkerTool System, OnyX, Mavericks Cache Cleaner, or Cocktail that you can use for removing old log files and archives, clearing caches, etc. Corrupted cache, log, or temporary files can cause application or OS X crashes as well as kernel panics.
If you have Snow Leopard or Leopard, then for similar repairs install the freeware utility Applejack. If you cannot start up in OS X, you may be able to start in single-user mode from which you can run Applejack to do a whole set of repair and maintenance routines from the command line. Note that AppleJack 1.5 is required for Leopard. AppleJack 1.6 is compatible with Snow Leopard. Applejack does not work with Lion and later.
Basic Backup
For some people Time Machine will be more than adequate. Time Machine is part of OS X. There are two components:
1. A Time Machine preferences panel as part of System Preferences;
2. A Time Machine application located in the Applications folder. It is
used to manage backups and to restore backups. Time Machine
requires a backup drive that is at least twice the capacity of the
drive being backed up.
Alternatively, get an external drive at least equal in size to the internal hard drive and make (and maintain) a bootable clone/backup. You can make a bootable clone using the Restore option of Disk Utility. You can also make and maintain clones with good backup software. My personal recommendations are (order is not significant):
1. Carbon Copy Cloner
2. Get Backup
3. Deja Vu
4. SuperDuper!
5. Synk Pro
6. Tri-Backup
Visit The XLab FAQs and read the FAQ on backup and restore. Also read How to Back Up and Restore Your Files. For help with using Time Machine visit Pondini's Time Machine FAQ for help with all things Time Machine.
Referenced software can be found at MacUpdate.
Additional Hints
Be sure you have an adequate amount of RAM installed for the number of applications you run concurrently. Be sure you leave a minimum of 10% of the hard drive's capacity as free space.
Add more RAM. If your computer has less than 2 GBs of RAM and you are using OS X Leopard or later, then you can do with more RAM. Snow Leopard and Lion work much better with 4 GBs of RAM than their system minimums. The more concurrent applications you tend to use the more RAM you should have.
Always maintain at least 15 GBs or 10% of your hard drive's capacity as free space, whichever is greater. OS X is frequently accessing your hard drive, so providing adequate free space will keep things from slowing down.
Check for applications that may be hogging the CPU:
Pre-Mavericks
Open Activity Monitor in the Utilities folder. Select All Processes from the Processes dropdown menu. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Mavericks and later
Open Activity Monitor in the Utilities folder. Select All Processes from the View menu. Click on the CPU tab in the toolbar. Click twice on the CPU% column header to display in descending order. If you find a process using a large amount of CPU time (>=70,) then select the process and click on the Quit icon in the toolbar. Click on the Force Quit button to kill the process. See if that helps. Be sure to note the name of the runaway process so you can track down the cause of the problem.
Often this problem occurs because of a corrupted cache or preferences file or an attempt to write to a corrupted log file. -
Older but upgraded MBP running slow... no obvious cause.
Hello all and thanks in advance for anything you have to share.
My mid-2007 15" MBP has gotten slow in basic finder functions and opening/switching/closing programs with no obvious bottleneck. I use Activity Monitor regularly, and there is often a very low CPU load, never any RAM pressure (which I find suspicious, but I do have 6 GB installed), and I'm not running any particularly high demand software (usually Safari with a few tabs open, mail, Word or maybe Excel).
I'm considering doing a clean install of Yosemite (currently running Mav), but I wish I knew if there were anything else causing a particular bottleneck at the moment. If you can tell me exactly what/why I'm running slow (i.e. some hardware issue that will force me to upgrade), that's fine, I just want to know what it is. Even as I'm typing these letters, I'm typing 2 or 3 words faster than the text appears on the screen, yet the CPU is running around 20% and RAM indicates 3.6 out of 6 GB used.
System profile below from EtreCheck. Thanks in advance for any help!
Problem description:
General slowness and lag opening programs, switching windows/programs, etc. Not related to download speeds. No obvious cause, processor usage and memory pressure (RAM) both appear fine/low most of the time, yet computer is just slow.
EtreCheck version: 2.1.8 (121)
Report generated February 15, 2015 at 10:18:22 PM EST
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
MacBook Pro (15-inch 2.4/2.2GHz) (Verified)
MacBook Pro - model: MacBookPro3,1
1 2.4 GHz Intel Core 2 Duo CPU: 2-core
6 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR2 SDRAM 667 MHz ok
BANK 1/DIMM1
4 GB DDR2 SDRAM 667 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Battery Health: Normal - Cycle count 155
Video Information: ℹ️
GeForce 8600M GT - VRAM: 256 MB
Color LCD 1440 x 900
System Software: ℹ️
OS X 10.9.5 (13F34) - Time since boot: 4:44:45
Disk Information: ℹ️
ST9500420AS disk0 : (500.11 GB)
EFI (disk0s1) <not mounted> : 210 MB
Darrah's 500GB HD (disk0s2) / : 499.25 GB (43.30 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
USB Information: ℹ️
Apple Inc. Built-in iSight
Apple Inc. Bluetooth USB Host Controller
Apple Computer Apple Internal Keyboard / Trackpad
Apple Computer, Inc. IR Receiver
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Library/Application Support/VirtualBox
[loaded] org.virtualbox.kext.VBoxDrv (4.3.12) [Click for support]
[loaded] org.virtualbox.kext.VBoxNetAdp (4.3.12) [Click for support]
[loaded] org.virtualbox.kext.VBoxNetFlt (4.3.12) [Click for support]
[loaded] org.virtualbox.kext.VBoxUSB (4.3.12) [Click for support]
/Library/Extensions
[loaded] com.globaldelight.driver.BoomDevice (1.3 - SDK 10.9) [Click for support]
/System/Library/Extensions
[loaded] com.avatron.AVExFramebuffer (1.7 - SDK 10.8) [Click for support]
[loaded] com.avatron.AVExVideo (1.7 - SDK 10.8) [Click for support]
[not loaded] com.novatelwireless.driver.3G (3.0.2) [Click for support]
[not loaded] com.novatelwireless.driver.DisableAutoInstall (2.0.6) [Click for support]
[not loaded] com.sierrawireless.driver.SierraSupport (1.4.11) [Click for support]
[not loaded] com.sierrawireless.driver.SierraSwitch (1.2.2) [Click for support]
[not loaded] com.sierrawireless.driver.SierraSwitchKicker (1.0.0) [Click for support]
[not loaded] com.smithmicro.driver.SMSIWirelessModem (3.2.6) [Click for support]
/System/Library/Extensions/NovatelWireless3G.kext/Contents/PlugIns
[not loaded] com.novatelwireless.driver.3GData (3.0.2) [Click for support]
/System/Library/Extensions/SMSIWirelessModem.kext/Contents/PlugIns
[not loaded] com.smithmicro.driver.SMSIWirelessCDC (3.2.6) [Click for support]
[not loaded] com.smithmicro.driver.SMSIWirelessSerial (3.2.6) [Click for support]
Launch Agents: ℹ️
[loaded] com.google.keystone.agent.plist [Click for support]
[loaded] com.oracle.java.Java-Updater.plist [Click for support]
[loaded] org.macosforge.xquartz.startx.plist [Click for support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Click for support]
[loaded] com.google.keystone.daemon.plist [Click for support]
[loaded] com.microsoft.office.licensing.helper.plist [Click for support]
[loaded] com.oracle.java.Helper-Tool.plist [Click for support]
[loaded] com.timesoftware.timemachineeditor.helper.plist [Click for support]
[loaded] org.macosforge.xquartz.privileged_startx.plist [Click for support]
[not loaded] org.virtualbox.startup.plist [Click for support]
[loaded] org.wireshark.ChmodBPF.plist [Click for support]
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist [Click for support]
[loaded] com.citrixonline.GoToMeeting.G2MUpdate.plist [Click for support]
[not loaded] org.virtualbox.vboxwebsrv.plist [Click for support]
User Login Items: ℹ️
Flux Application (/Applications/Utilities/Flux.app)
ScreenCapture UNKNOWN (missing value)
AdobeResourceSynchronizer Application Hidden (/Applications/Adobe Reader.app/Contents/Support/AdobeResourceSynchronizer.app)
AirDisplayStatusItem UNKNOWN (missing value)
Internet Plug-ins: ℹ️
xo1dbrowserplugin: Version: 5.2.4.18058 [Click for support]
o1dbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
Default Browser: Version: 537 - SDK 10.9
Flip4Mac WMV Plugin: Version: 3.2.0.16 - SDK 10.8 [Click for support]
AdobePDFViewerNPAPI: Version: 10.1.13 [Click for support]
FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Click for support]
Flash Player: Version: 16.0.0.305 - SDK 10.6 [Click for support]
QuickTime Plugin: Version: 7.7.3
googletalkbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
SharePointBrowserPlugin: Version: 14.4.7 - SDK 10.6 [Click for support]
AdobePDFViewer: Version: 10.1.13 [Click for support]
iPhotoPhotocast: Version: 7.0
JavaAppletPlugin: Version: Java 8 Update 25 Check version
User internet Plug-ins: ℹ️
CitrixOnlineWebDeploymentPlugin: Version: 1.0.105 [Click for support]
Unity Player: Version: UnityPlayer version 1.6.2 [Click for support]
Safari Extensions: ℹ️
AdBlock
Reddit Enhancement Suite
3rd Party Preference Panes: ℹ️
Flash Player [Click for support]
Flip4Mac WMV [Click for support]
Java [Click for support]
Perian [Click for support]
Time Machine: ℹ️
Skip System Files: NO
Mobile backups: ON
Auto backup: YES
Volumes being backed up:
Darrah's 500GB HD: Disk size: 499.25 GB Disk used: 455.95 GB
Destinations:
Data [Network]
Total size: 2.00 TB
Total number of backups: 86
Oldest backup: 2013-05-26 02:24:05 +0000
Last backup: 2015-02-16 02:17:03 +0000
Size of backup disk: Excellent
Backup size 2.00 TB > (Disk size 499.25 GB X 3)
Top Processes by CPU: ℹ️
14% WindowServer
13% Safari
10% com.apple.WebKit.Networking
3% backupd
2% fontd
Top Processes by Memory: ℹ️
322 MB Safari
219 MB mds_stores
135 MB com.apple.IconServicesAgent
122 MB Mail
102 MB com.apple.WebKit.WebContent
Virtual Memory Information: ℹ️
1.06 GB Free RAM
2.96 GB Active RAM
1.53 GB Inactive RAM
887 MB Wired RAM
623 MB Page-ins
0 B Page-outs
Diagnostics Information: ℹ️
Feb 15, 2015, 05:30:56 PM Self test - passedYou don't have enough storage space.
Go step by step and test.
1. Start up in Safe Mode.
http://support.apple.com/kb/PH11212
2. Empty Trash.
http://support.apple.com/kb/PH13806
3. Disk space / Time Machine ?/ Local Snapshots
Local backups
http://support.apple.com/kb/ht4878
4. Delete old iOS Devices Backup.
iTunes > Preferences > Devices
Highlight the old Backups , press “Delete Backup” and then “OK”.
http://support.apple.com/kb/HT4946?viewlocale=en_US&locale=en_US
5. Re-index Macintosh HD.
This will take a while. Wait until it is finished.
System Preferences > Spotlight > Privacy
http://support.apple.com/kb/ht2409
6.Try OmniDiskSweeper. This will give the storage size details of the items.
https://www.omnigroup.com/more
Select Macintosh HD and click “Sweep Selected Drive” at the bottom.
Delete the files yo don’t want to keep.
Be careful. Delete only the files that can be safely be deleted.
7. Move iTunes, iPhoto and iMovie media folders to an external drive.
iTunes
http://support.apple.com/en-us/HT201562
iPhoto
http://support.apple.com/kb/PH2506
iMovie
http://support.apple.com/kb/ph2289 -
Hi
the following query runs slow in APEX (:P10_start_date => 01-sep-08, :P10_end_date=>10-sep-08) but in pl/sql developer it takes a second only
(11g, APEX 3.1.1) any suggestions
select /*+ index (jane_don pre_test_idx)*/
stud_mode, stud_nr, test_nr, pre_date,
timestamp, wr_dur, lec_nr,
lec_part_nr, lec_dist,
lec_out, lec_out_in, lec_tl_nr
from john.jane_don
where pre_date >= to_date(:P10_start_date,'dd-mon-rrrr') and
pre_date <= to_date(:P10_end_date,'dd-mon-rrrr')
and test_2 = to_char(:P10_test)
order by pre_date , timestamp, test_nr
MelHi,
the first thing to do when you are experiencing a slow page rendering, is to click on the debug link at the bottom of the page (you need to be logged on in the APP builder, otherwise it will not show up). If you don't see the link, you can still activate debug mode by entering YES after the fourth semicolon in the URL (unless you disabled the debugging option in the application definition in which case you need to re-enable it first), for instance:
http://apex.oracle.com/pls/otn/f?p=38250:13:0::YES
And you'll see the timings of each component.
Did you already perform this action?
Did you already identify the query as the slowest component in your page?
May be there is some other process that is causing the delay?
Bye,
Flavio
http://www.oraclequirks.com
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