How to do Query optimization?It takes more time to fetch the record from db. Very urgent, I need your assistance
Hi all
I want to fetch just twenty thousands records from table. My query take more time to fetch twenty thousands records. I post my working query, Could you correct the query for me. thanks in advance.
Query
select
b.Concatenated_account Account,
b.Account_description description,
SUM(case when(Bl.ACTUAL_FLAG='B') then
((NVL(Bl.PERIOD_NET_DR, 0)- NVL(Bl.PERIOD_NET_CR, 0)) + (NVL(Bl.PROJECT_TO_DATE_DR, 0)- NVL(Bl.PROJECT_TO_DATE_CR, 0)))end) "Budget_2011"
from
gl_balances Bl,
gl_code_combinations GCC,
psb_ws_line_balances_i b ,
gl_budget_versions bv,
gl_budgets_v gv
where
b.CODE_COMBINATION_ID=gcc.CODE_COMBINATION_ID and bl.CODE_COMBINATION_ID=gcc.CODE_COMBINATION_ID and
bl.budget_version_id =bv.BUDGET_VERSION_ID and gv.budget_version_id= bv.budget_version_id
and gv.latest_opened_year in (select latest_opened_year-3 from gl_budgets_v where latest_opened_year=:BUDGET_YEAR )
group by b.Concatenated_account ,b.Account_description
Hi,
If this question is related to SQL then please post in SQL forum.
Otherwise provide more information how this sql is being used and do you want to tune the SQL or the way it fetches the information from DB and display in OAF.
Regards,
Sandeep M.
Similar Messages
-
In my TDS Certificate Report takes more time in fetching the data from bseg
only i am checking mblnr and company code.
I think you can do this, but not the way you are doing it now. You have to use most of the key when going agains BSEG. I'll look around a bit and get back to you.
Yes - you can get the purchase order and sales order line items for the material. Then go to the history tables to get the material document numbers. Finally use AWTYPE and AWKEY to get the document numbers from BKPF.
Rob
Message was edited by:
Rob Burbank -
Hi,
I faced up to a 'peculiar' situation with a costly db view.
I attempted to reduce the total view cost
specifically for 223 records fetched{the cost from 149 reduced to 74,
the recursive calls from 796 reduced to 224,
the consistent gets from 311516 reduced to 310341,
the physical reads from 7 reduced to 0}
but the amount of time needed to fetch the results is greater than the old version of the db view....{it may be the double...}
Have you any idea about this...????
Note: I have got fresh statistics...
I use db 10g v.2
Thanks,
SimTry tracing the query and see what tkprofs shows you.
alter session set events '10046 trace name context forever, level 12';
run the query
alter session set events '10046 trace name context off';
Then run tkprofs on the trace file produced to see where the database is spending its time/effort. Do likewise for the baseline query in a different session (so you will generate a different trace file).
If that does not produce anything useful, try using
alter session set events '10053 trace name context forever';
run the query
alter session set events '10053 trace name context off';
Then examine the trace file to see if you can learn anything.
Since you have not given us anything more to go on, that is about all the help I can give.... -
After updating the iphone 5 to IOS 6.1.3 battery drains fast. Also it takes more time to change battery status from Red to Green. Any solution?
Anyone?
Thinking I'm S.O.L at this point. -
How to quickly fetch the records from an SQL recordset
I'm using LW/CVI V7.1.1 and SQL Toolkit V2.06.
When displaying the recordset from a SELECT statement I use the following construct:
SQLhandle1 = DBActivateSQL(DBhandle, SELECTtext);
DBBindCol() statements.......
numRecs = DBNumberOfRecords(SQLhandle1);
for (n=1; n<=numRecs; n++) {
DBFetchNext(SQLhandle1);
display record to the user...
DBDeactivateSQL (SQLhandle1);
This has always worked fine for me when using local databases. Now I am developing an app for a remote database, and the fetching of each selected record is proving to be an issue. It takes at best, 60msecs for my round-trip network access to fetch each record. If selecting very many records, the fetching can add up to a considerable time delay.
My question is, how can I bind the entire recordset to my application variables, (or to a local table?) in a single request to the database? Does LW/CVI support such a method? Or perhaps someone knows an SQL method to help me?
ThanksHi Michael,
Thanks for the help. This is what I was looking for. Not sure why I missed it!
However, after trying it out, it doesn't seem to help. The statement: DBGetVariantArray(SQLhandle, &array, &recs, &fields); seems to take the same amount of time to get the records as the individual DBFetchNext() statements. So if my SQL statement matches 100 records, the DBGetVariantArray() call will take 100*60msec to complete.
Is there a DB attribute setting that needs changed? -
I need to change my rescue email because it's not available anymore and I forgot the answers of my security questions so I didn't receive any email because of my invalid hotmail sorry if my English isn't good but I hope you understand what I mean thanks for your cooperation
You need help from an Apple employee. We are just other users like you are. Go here, find your. Up try and contact Apple.
http://support.apple.com/kb/HT5699
This site might even work better if you want to make a phone call. Ask for Account Security.
http://support.apple.com/kb/HE57 -
Hi
The following delete takes more time to execute.
DELETE FROM credential_on
WHERE credential_on_id IN (SELECT credential_on_id
FROM credential_on_appl
WHERE appn_num <= ANY (SELECT appn_num
FROM masterdriver));
Is there a way to tune this statement.
Regards,
XJDExplain plan for the delete query
OPERATION OPTIONS OBJECT_NAME OPTIMIZER
DELETE STATEMENT CREDENTIAL_ON CHOOSE
DELETE
MERGE JOIN
SORT JOIN
TABLE ACCESS CREDENTIAL_ON
SORT JOIN
VIEW VW_NSO_1
SORT UNIQUE
FILTER
NESTED LOOPS
TABLE ACCESS FULL CREDENTIAL_ON_APPL
TABLE ACCESS FULL MASTERDRIVER -
Query takes too much time in fetching last records.
Hi,
I am using oracle 8.1 and trying to execute a SQL statement, it takes few minutes and display records.
When trying to fetch all the records, it is fast up to some level and takes much time to fetch last record.
Ex: If total records = 16336 , then it fetches records faster up to 16300 and takes app.500 sec to fetch last 36 records.
Could you kindly let me know the reason.
I have copied the explain plan below for your reference.Please let me know if anything is required.
SELECT STATEMENT, GOAL = RULE 4046 8 4048
NESTED LOOPS OUTER 4046 8 4048
NESTED LOOPS OUTER 4030 8 2952
FILTER
NESTED LOOPS OUTER
NESTED LOOPS OUTER 4014 8 1728
NESTED LOOPS 3998 8 936
TABLE ACCESS BY INDEX ROWID IFSAPP CUSTOMER_ORDER_TAB 3966 8 440
INDEX RANGE SCAN IFSAPP CUSTOMER_ORDER_1_IX 108 8
TABLE ACCESS BY INDEX ROWID IFSAPP CUSTOMER_ORDER_LINE_TAB 4 30667 1901354
INDEX RANGE SCAN IFSAPP CUSTOMER_ORDER_LINE_PK 3 30667
TABLE ACCESS BY INDEX ROWID IFSAPP PWR_CONS_PARCEL_CONTENT_TAB 2 2000 198000
INDEX RANGE SCAN IFSAPP PWR_CONS_PARCEL_CONTENT_1_IDX 1 2000
TABLE ACCESS BY INDEX ROWID IFSAPP PWR_CONS_PARCEL_TAB 1 2000 222000
INDEX UNIQUE SCAN IFSAPP PWR_CONS_PARCEL_PK 2000
TABLE ACCESS BY INDEX ROWID IFSAPP CONSIGNMENT_PARCEL_TAB 1 2000 84000
INDEX UNIQUE SCAN IFSAPP CONSIGNMENT_PARCEL_PK 2000
TABLE ACCESS BY INDEX ROWID IFSAPP PWR_OBJECT_CONNECTION_TAB 2 20 2740
INDEX RANGE SCAN IFSAPP PWR_OBJECT_CONNECTION_IX1 1 20 Thanks.We are using PL/SQL Developer tool. The time what we have mentioned in the post is approximated time.
Apologies for not mentioning these details in previous thread.Let it be approximate time but how did you arrive at that time? When a query fetches records how did you derived that one portion is fetched in x and the remaining in y time limit?
I would suggest this could be some issue with PL/SQL Developer (Never used this tool by myself) But for performance testing i would suggest you to use SQL Plus. Thats the best tool to test performance. -
Takes more time to start & shutdown the database
Hi All,
I have created a database in oracle9i by following manual steps. Every thing was created successfully and am able to start the database and shutdown also.
but the problem is while giving the startup command it takes more time to start the database and the same during the shutdown. So anyone help me..
the follwing are the pfile specifications:
db_name=practice
instance_name=practice
control_files= 'E:\practice\control\control1.ctl',
'D:\practice\control\control2.ctl'
db_block_size=2048
db_cache_size=20m
shared_pool_size=20m
background_dump_dest='E:\practice\bdump'
user_dump_dest='E:\practice\udump'
Thanks in AdvanceEvery thing was created successfully and am able to start the database and > shutdown also.Please restate the above.
problem is while giving the startup command it takes more time to start the >database and the same during the shutdownHow have you compared? Could it be O/S resources, installation of additional software; you have not mentioned the O/S and complete version of your database.
You can review the following although I am bit unclear;
http://download.oracle.com/docs/cd/B10501_01/server.920/a96533/instreco.htm#440322
Adith -
How the implementation differs between BW and BI , Is BI takes more time fo
Hi All,
I would like to know difference between implemenation and time lines for MM as mentioned below.
How the implementation differs between BW and BI , Is BI takes more time for implementing MM module than on BW?
Thanks in advanced. (Full points will be awarded)
With Regards,
PCRHi Timo,
Thanks for response!
But as i read from the following url: http://docs.oracle.com/cd/E15051_01/apirefs.1111/e10653/oracle/jbo/ViewObject.html, the setQueryTimeOut(int timeOutMills), the timeOut is mentioned in milliseconds. Please correct me if I am wrong.
and i have overriden the executeQuery() method in the View Object Impl class as shown below:
public void executeQuery() {
Map sessionScope = ADFContext.getCurrent().getSessionScope();
sessionScope.put("MyQuery", this);
try {
super.executeQuery();
} finally {
sessionScope.remove("MyQuery");
throw new JboException("Query Taking too long to respond");
and in the JAVA class i am calling the above method like this:
monitor.setQueryTimeOut(6);
monitor.executeQuery();
But the issue is:
1. The above exception message is getting carried forward to other pages as well. I mean somewhere in the session/ADFContext this message is being saved and error comes up/pops up when i click on other tabs of the page. How do i clear this?
2. The above exception message is coming for the first time but when i click the 'Submit' button second time, i am getting the results and also the message that 'Query is taking too long to respond'. This should not be the case, everytime it should show the same message as the timeout limit is less and the query should end without fetching the results.
Kindly let me know how to resolve the above issues, any pointers will be helpful.
Thanks in advance.
Edited by: user9223904 on Nov 3, 2012 4:42 AM -
Optimizing the query - which takes more time
Hi,
Am having a query which was returning the results pretty fast one week back but now the same query takes more time to respond, nothing much changed in the table data, what could be the problem. Am using IN in the where clause, whether that could be an issue? if so what is the best method of rewriting the query.
SELECT RI.RESOURCE_NAME,TR.MSISDN,MAX(TR.ADDRESS1_GOOGLE) KEEP(DENSE_RANK LAST ORDER BY TR.MSG_DATE_INFO) ADDRESS1_GOOGLE,
MAX(TR.TIME_STAMP) MSG_DATE_INFO FROM TRACKING_REPORT TR, RESOURCE_INFO RI
WHERE TR.MSISDN IN ( SELECT MSISDN FROM RESOURCE_INFO WHERE GROUP_ID ='4'
AND COM_ID='12') AND RI.MSISDN = TR.MSISDN
GROUP BY RI.RESOURCE_NAME,TR.MSISDN ORDER BY MSG_DATE_INFO DESCHi
i have followed this link http://www.lorentzcenter.nl/awcourse/oracle/server.920/a96533/sqltrace.htm in enabling the trace and found out the following trace output, can you explain the problem here and its remedial action pls.
SELECT RI.RESOURCE_NAME,TR.MSISDN,MAX(TR.ADDRESS1_GOOGLE) KEEP(DENSE_RANK
LAST ORDER BY TR.MSG_DATE_INFO) ADDRESS1_GOOGLE, MAX(TR.TIME_STAMP)
MSG_DATE_INFO
FROM
TRACKING_REPORT TR, RESOURCE_INFO RI WHERE RI.GROUP_ID ='426' AND
RI.COM_ID='122' AND RI.MSISDN = TR.MSISDN GROUP BY RI.RESOURCE_NAME,
TR.MSISDN
call count cpu elapsed disk query current rows
Parse 1 0.01 0.02 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 6 13.69 389.03 81747 280722 0 72
total 8 13.70 389.05 81747 280722 0 72
Misses in library cache during parse: 1
Optimizer goal: CHOOSE
Parsing user id: 281
Rows Row Source Operation
72 SORT GROUP BY
276558 NESTED LOOPS
79 TABLE ACCESS FULL RESOURCE_INFO
276558 TABLE ACCESS BY INDEX ROWID TRACKING_REPORT
276558 INDEX RANGE SCAN TR_INDX_ON_MSISDN_TIME (object id 60507)
********************************************************************************and the plan_table output is
STATEMENT_ID TIMESTAMP REMARKS OPERATION OPTIONS OBJECT_NODE OBJECT_OWNER OBJECT_NAME OBJECT_INSTANCE OBJECT_TYPE OPTIMIZER SEARCH_COLUMNS ID PARENT_ID POSITION COST CARDINALITY BYTES OTHER_TAG PARTITION_START PARTITION_STOP PARTITION_ID OTHER DISTRIBUTION CPU_COST IO_COST TEMP_SPACE ACCESS_PREDICATES FILTER_PREDICATES
23-Mar-11 23:36:45 SELECT STATEMENT CHOOSE 0 115 115 1058 111090 115
23-Mar-11 23:36:45 SORT GROUP BY 1 0 1 115 1058 111090 115
23-Mar-11 23:36:45 NESTED LOOPS 2 1 1 9 4603 483315 9
23-Mar-11 23:36:45 TABLE ACCESS FULL BSNL_RTMS RESOURCE_INFO 2 ANALYZED 3 2 1 8 1 30 8 "RI"."GROUP_ID"=426 AND "RI"."COM_ID"='122'
23-Mar-11 23:36:45 TABLE ACCESS BY INDEX ROWID BSNL_RTMS TRACKING_REPORT 1 ANALYZED 4 2 2 1 3293 246975 1
23-Mar-11 23:36:45 INDEX RANGE SCAN BSNL_RTMS TR_INDX_ON_MSISDN_TIME NON-UNIQUE 1 5 4 1 1 3293 1 "RI"."MSISDN"="TR"."MSISDN" -
What is the reason for query take more time to execute
Hi,
What is the reason for the query take more time inside procedure.
but if i execute that query alone then it excute within a minutes.
query includes update and insert.I have a insert and update query when I execute
without Procedure then that query execute faster but
If I execute inside procedure then It takes 2 hours
to execute.Put you watch 2 hours back and the problem will disappear.
do you understand what I want to say?I understood what you wanted to say and I understood you didn't understood what I said.
What does the procedure, what does the query, how can you say the query does the same as the procedure that takes longer. You didn't say anything useful to have an idea of what you're talking about.
Everyone knows what means that something is slower than something else, but it means nothing if you don't say what you're talking about.
To begin with something take a look at this
When your query takes too long ...
especially the part regarding the trace.
Bye Alessandro -
Hi All,
I have cloned KSB1 tcode to custom one as required by business.
Below query takes more time than excepted.
Here V_DB_TABLE = COVP.
Values in Where clause are as follows
OBNJR in ( KSBB010000001224 BT KSBB012157221571)
GJAHR in blank
VERSN in '000'
WRTTP in '04' and '11'
all others are blank
VT_VAR_COND = ( CPUDT BETWEEN '20091201' and '20091208' )
SELECT (VT_FIELDS) INTO CORRESPONDING FIELDS OF GS_COVP_EXT
FROM (V_DB_TABLE)
WHERE LEDNR = '00'
AND OBJNR IN LR_OBJNR
AND GJAHR IN GR_GJAHR
AND VERSN IN GR_VERSN
AND WRTTP IN GR_WRTTP
AND KSTAR IN LR_KSTAR
AND PERIO IN GR_PERIO
AND BUDAT IN GR_BUDAT
AND PAROB IN GR_PAROB
AND (VT_VAR_COND).
Checked in table for this condition it has only 92 entries.
But when i execute program takes long time as 3 Hrs.
Could any one help me on this>1.Dont use SELECT/ENDSELECT instead use INTO TABLE addition .
> 2.Avoid using corresponding addition.create a type and reference it.
> If the select is going for dump beacause of storage limitations ,then use Cursors.
you got three large NOs .... all three recommendations are wrong!
The SE16 test is going in the right direction ... but what was filled. Nobody knows!!!!
Select options:
Did you ever try to trace the SE16? The generic statement has for every field an in-condition!
Without the information what was actually filled, nobody can say something there
are at least 2**n combinations possible!
Use ST05 for SE16 and check actual statement plus explain! -
Query Takes more Time when i execute from the Instant client.
Hi,
Currently in our Env we have some Queries takes more time when we run from the Instant Client.
System Details
OS=Solaris 10 x86 64bit
Oracle 10.2.0.4
Client Side
$ sqlplus trd_trd_ro/trd_trd_ro@prdba001/TRADE1
SQL*Plus: Release 10.2.0.2.0 - Production on Mon Aug 9 16:26:25 2010
Copyright (c) 1982, 2005, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Release 10.2.0.4.0 - Production
SQL> set timing on
SQL> select mod(lastinstmessagesequence, 1000000000) LastInstIDSeqNo from tibex_msgseqbyuseralias where useralias='2221';
no rows selected
Elapsed: 00:01:54.19
SQL> Disconnected from Oracle Database 10g Release 10.2.0.4.0 - ProductionSame Query running on Server Side
^C130-oracle@prdba001 txt: sql
Database: trd_trd_owner/trd_trd_owner@prdba001/TRADE1
SQL*Plus: Release 10.2.0.4.0 - Production on Mon Aug 9 17:15:18 2010
Copyright (c) 1982, 2007, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Release 10.2.0.4.0 - Production
trd_trd_owner@TRADE1> set timing on
trd_trd_owner@TRADE1> select mod(lastinstmessagesequence, 1000000000) LastInstIDSeqNo from tibex_msgseqbyuseralias where useralias='2221';
no rows selected
Elapsed: 00:00:00.12
trd_trd_owner@TRADE1> exitKindly help me what could be the Issues.Hi Charles,
Thanks for your Quick response.I pulled the info.
sys@TRADE1> SELECT * FROM TABLE(DBMS_XPLAN.DISPLAY_CURSOR('bpxr7axhxaqvy',NULL,'ALLSTATS LAST'));
PLAN_TABLE_OUTPUT
SQL_ID bpxr7axhxaqvy, child number 0
select /*+ GATHER_PLAN_STATISTICS */ mod(lastinstmessagesequence, :"SYS_B_0") LastInstIDSeqNo from
tibex_msgseqbyuseralias where useralias=:"SYS_B_1"
Plan hash value: 1955857846
| Id | Operation | Name | Starts | E-Rows | A-Rows | A-Time | Buffers |
| 1 | SORT GROUP BY NOSORT | | 1 | 21 | 0 |00:00:00.06 | 6121 |
| 2 | VIEW | | 1 | 21 | 0 |00:00:00.06 | 6121 |
| 3 | UNION-ALL | | 1 | | 0 |00:00:00.06 | 6121 |
| 4 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.05 | 3073 |
|* 5 | TABLE ACCESS FULL | TIBEX_QUOTE | 1 | 30080 | 0 |00:00:00.05 | 3073 |
| 6 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
| 7 | TABLE ACCESS BY INDEX ROWID| TIBEX_ORDER | 1 | 971 | 0 |00:00:00.01 | 3 |
|* 8 | INDEX RANGE SCAN | TIBEX_ORDER_IDX_OLT | 1 | 971 | 0 |00:00:00.01 | 3 |
| 9 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
|* 10 | TABLE ACCESS FULL | TIBEX_TSTRADE | 1 | 1 | 0 |00:00:00.01 | 3 |
| 11 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
|* 12 | TABLE ACCESS FULL | TIBEX_IOIREQUEST | 1 | 1 | 0 |00:00:00.01 | 3 |
| 13 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 126 |
|* 14 | TABLE ACCESS FULL | TIBEX_BESTEXREL | 1 | 1 | 0 |00:00:00.01 | 126 |
| 15 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 2862 |
|* 16 | INDEX FAST FULL SCAN | SYS_C0058325 | 1 | 339 | 0 |00:00:00.01 | 2862 |
| 17 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 31 |
|* 18 | TABLE ACCESS FULL | TIBEX_EDPPULLORDERS | 1 | 1 | 0 |00:00:00.01 | 31 |
| 19 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 20 | INDEX RANGE SCAN | SYS_C0058803 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 21 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 22 | INDEX RANGE SCAN | SYS_C0057785 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 23 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 24 | INDEX RANGE SCAN | SYS_C0057827 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 25 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
|* 26 | TABLE ACCESS FULL | TIBEX_DELETEADMIN | 1 | 1 | 0 |00:00:00.01 | 3 |
| 27 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 28 | INDEX RANGE SCAN | SYS_C0058148 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 29 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 30 | INDEX RANGE SCAN | SYS_C0058264 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 31 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 32 | INDEX RANGE SCAN | SYS_C0058516 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 33 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 34 | INDEX RANGE SCAN | SYS_C0058561 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 35 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 36 | INDEX RANGE SCAN | SYS_C0058783 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 37 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 38 | INDEX RANGE SCAN | SYS_C0058977 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 39 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 40 | INDEX RANGE SCAN | SYS_C0058859 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 41 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 42 | INDEX RANGE SCAN | SYS_C0059197 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 43 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
|* 44 | TABLE ACCESS FULL | TIBEX_CANCELTRDADMIN | 1 | 1 | 0 |00:00:00.01 | 3 |
| 45 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
|* 46 | TABLE ACCESS FULL | TIBEX_BULKCANCELADMIN | 1 | 1 | 0 |00:00:00.01 | 3 |
Predicate Information (identified by operation id):
PLAN_TABLE_OUTPUT
5 - filter("LASTINSTUSERALIAS"=:SYS_B_1)
8 - access("LASTINSTUSERALIAS"=:SYS_B_1)
10 - filter(("LASTINSTUSERALIAS" IS NOT NULL AND "LASTINSTUSERALIAS"=:SYS_B_1))
12 - filter(("LASTINSTUSERALIAS" IS NOT NULL AND "LASTINSTUSERALIAS"=:SYS_B_1))
14 - filter(("LASTINSTUSERALIAS" IS NOT NULL AND "LASTINSTUSERALIAS"=:SYS_B_1))
16 - filter("USERALIAS"=:SYS_B_1)
18 - filter("USERALIAS"=:SYS_B_1)
20 - access("USERALIAS"=:SYS_B_1)
22 - access("USERALIAS"=:SYS_B_1)
24 - access("USERALIAS"=:SYS_B_1)
26 - filter(("USERALIAS" IS NOT NULL AND "USERALIAS"=:SYS_B_1))
28 - access("USERALIAS"=:SYS_B_1)
30 - access("USERALIAS"=:SYS_B_1)
32 - access("USERALIAS"=:SYS_B_1)
34 - access("USERALIAS"=:SYS_B_1)
36 - access("USERALIAS"=:SYS_B_1)
38 - access("USERALIAS"=:SYS_B_1)
40 - access("USERALIAS"=:SYS_B_1)
42 - access("USERALIAS"=:SYS_B_1)
44 - filter("USERALIAS"=:SYS_B_1)
46 - filter("USERALIAS"=:SYS_B_1)
SQL_ID bpxr7axhxaqvy, child number 1
select /*+ GATHER_PLAN_STATISTICS */ mod(lastinstmessagesequence, :"SYS_B_0") LastInstIDSeqNo from
tibex_msgseqbyuseralias where useralias=:"SYS_B_1"
Plan hash value: 1955857846
Plan hash value: 1955857846
| Id | Operation | Name | Starts | E-Rows | A-Rows | A-Time | Buffers |
| 1 | SORT GROUP BY NOSORT | | 1 | 21 | 0 |00:00:00.12 | 8545 |
| 2 | VIEW | | 1 | 21 | 0 |00:00:00.12 | 8545 |
| 3 | UNION-ALL | | 1 | | 0 |00:00:00.12 | 8545 |
| 4 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.10 | 5496 |
|* 5 | TABLE ACCESS FULL | TIBEX_QUOTE | 1 | 21056 | 0 |00:00:00.10 | 5496 |
| 6 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 4 |
| 7 | TABLE ACCESS BY INDEX ROWID| TIBEX_ORDER | 1 | 660 | 0 |00:00:00.01 | 4 |
|* 8 | INDEX RANGE SCAN | TIBEX_ORDER_IDX_OLT | 1 | 660 | 0 |00:00:00.01 | 4 |
| 9 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
|* 10 | TABLE ACCESS FULL | TIBEX_TSTRADE | 1 | 1 | 0 |00:00:00.01 | 3 |
| 11 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
|* 12 | TABLE ACCESS FULL | TIBEX_IOIREQUEST | 1 | 1 | 0 |00:00:00.01 | 3 |
| 13 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 126 |
|* 14 | TABLE ACCESS FULL | TIBEX_BESTEXREL | 1 | 1 | 0 |00:00:00.01 | 126 |
| 15 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.02 | 2862 |
|* 16 | INDEX FAST FULL SCAN | SYS_C0058325 | 1 | 339 | 0 |00:00:00.02 | 2862 |
| 17 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 31 |
|* 18 | TABLE ACCESS FULL | TIBEX_EDPPULLORDERS | 1 | 1 | 0 |00:00:00.01 | 31 |
| 19 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 20 | INDEX RANGE SCAN | SYS_C0058803 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 21 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 22 | INDEX RANGE SCAN | SYS_C0057785 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 23 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 24 | INDEX RANGE SCAN | SYS_C0057827 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 25 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
|* 26 | TABLE ACCESS FULL | TIBEX_DELETEADMIN | 1 | 1 | 0 |00:00:00.01 | 3 |
| 27 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 28 | INDEX RANGE SCAN | SYS_C0058148 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 29 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
PLAN_TABLE_OUTPUT
|* 30 | INDEX RANGE SCAN | SYS_C0058264 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 31 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 32 | INDEX RANGE SCAN | SYS_C0058516 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 33 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 34 | INDEX RANGE SCAN | SYS_C0058561 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 35 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 36 | INDEX RANGE SCAN | SYS_C0058783 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 37 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 38 | INDEX RANGE SCAN | SYS_C0058977 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 39 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 40 | INDEX RANGE SCAN | SYS_C0058859 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 41 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 |
|* 42 | INDEX RANGE SCAN | SYS_C0059197 | 1 | 1 | 0 |00:00:00.01 | 1 |
| 43 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
|* 44 | TABLE ACCESS FULL | TIBEX_CANCELTRDADMIN | 1 | 1 | 0 |00:00:00.01 | 3 |
| 45 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 |
|* 46 | TABLE ACCESS FULL | TIBEX_BULKCANCELADMIN | 1 | 1 | 0 |00:00:00.01 | 3 |
Predicate Information (identified by operation id):
5 - filter("LASTINSTUSERALIAS"=:SYS_B_1)
8 - access("LASTINSTUSERALIAS"=:SYS_B_1)
10 - filter(("LASTINSTUSERALIAS" IS NOT NULL AND "LASTINSTUSERALIAS"=:SYS_B_1))
12 - filter(("LASTINSTUSERALIAS" IS NOT NULL AND "LASTINSTUSERALIAS"=:SYS_B_1))
14 - filter(("LASTINSTUSERALIAS" IS NOT NULL AND "LASTINSTUSERALIAS"=:SYS_B_1))
16 - filter("USERALIAS"=:SYS_B_1)
18 - filter("USERALIAS"=:SYS_B_1)
20 - access("USERALIAS"=:SYS_B_1)
22 - access("USERALIAS"=:SYS_B_1)
24 - access("USERALIAS"=:SYS_B_1)
26 - filter(("USERALIAS" IS NOT NULL AND "USERALIAS"=:SYS_B_1))
28 - access("USERALIAS"=:SYS_B_1)
30 - access("USERALIAS"=:SYS_B_1)
32 - access("USERALIAS"=:SYS_B_1)
34 - access("USERALIAS"=:SYS_B_1)
36 - access("USERALIAS"=:SYS_B_1)
38 - access("USERALIAS"=:SYS_B_1)
40 - access("USERALIAS"=:SYS_B_1)
42 - access("USERALIAS"=:SYS_B_1)
44 - filter("USERALIAS"=:SYS_B_1)
46 - filter("USERALIAS"=:SYS_B_1)
SQL_ID bpxr7axhxaqvy, child number 2
select /*+ GATHER_PLAN_STATISTICS */ mod(lastinstmessagesequence, :"SYS_B_0") LastInstIDSeqNo from
tibex_msgseqbyuseralias where useralias=:"SYS_B_1"
Plan hash value: 1955857846
| Id | Operation | Name | Starts | E-Rows | A-Rows | A-Time | Buffers | Reads |
| 1 | SORT GROUP BY NOSORT | | 1 | 21 | 1 |00:00:00.13 | 8476 | 3 |
| 2 | VIEW | | 1 | 21 | 1 |00:00:00.13 | 8476 | 3 |
| 3 | UNION-ALL | | 1 | | 1 |00:00:00.13 | 8476 | 3 |
| 4 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.10 | 5283 | 0 |
|* 5 | TABLE ACCESS FULL | TIBEX_QUOTE | 1 | 21056 | 0 |00:00:00.10 | 5283 | 0 |
| 6 | SORT GROUP BY NOSORT | | 1 | 1 | 1 |00:00:00.01 | 148 | 3 |
| 7 | TABLE ACCESS BY INDEX ROWID| TIBEX_ORDER | 1 | 660 | 150 |00:00:00.01 | 148 | 3 |
PLAN_TABLE_OUTPUT
|* 8 | INDEX RANGE SCAN | TIBEX_ORDER_IDX_OLT | 1 | 660 | 150 |00:00:00.01 | 5 | 0 |
| 9 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 | 0 |
|* 10 | TABLE ACCESS FULL | TIBEX_TSTRADE | 1 | 1 | 0 |00:00:00.01 | 3 | 0 |
| 11 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 | 0 |
|* 12 | TABLE ACCESS FULL | TIBEX_IOIREQUEST | 1 | 1 | 0 |00:00:00.01 | 3 | 0 |
| 13 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 126 | 0 |
|* 14 | TABLE ACCESS FULL | TIBEX_BESTEXREL | 1 | 1 | 0 |00:00:00.01 | 126 | 0 |
| 15 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.02 | 2862 | 0 |
|* 16 | INDEX FAST FULL SCAN | SYS_C0058325 | 1 | 339 | 0 |00:00:00.02 | 2862 | 0 |
| 17 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 31 | 0 |
|* 18 | TABLE ACCESS FULL | TIBEX_EDPPULLORDERS | 1 | 1 | 0 |00:00:00.01 | 31 | 0 |
| 19 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 20 | INDEX RANGE SCAN | SYS_C0058803 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 21 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 22 | INDEX RANGE SCAN | SYS_C0057785 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 23 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 24 | INDEX RANGE SCAN | SYS_C0057827 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 25 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 | 0 |
|* 26 | TABLE ACCESS FULL | TIBEX_DELETEADMIN | 1 | 1 | 0 |00:00:00.01 | 3 | 0 |
| 27 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 28 | INDEX RANGE SCAN | SYS_C0058148 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 29 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 30 | INDEX RANGE SCAN | SYS_C0058264 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 31 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 32 | INDEX RANGE SCAN | SYS_C0058516 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 33 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 34 | INDEX RANGE SCAN | SYS_C0058561 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 35 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 36 | INDEX RANGE SCAN | SYS_C0058783 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 37 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 38 | INDEX RANGE SCAN | SYS_C0058977 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 39 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 40 | INDEX RANGE SCAN | SYS_C0058859 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 41 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
|* 42 | INDEX RANGE SCAN | SYS_C0059197 | 1 | 1 | 0 |00:00:00.01 | 1 | 0 |
| 43 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 | 0 |
|* 44 | TABLE ACCESS FULL | TIBEX_CANCELTRDADMIN | 1 | 1 | 0 |00:00:00.01 | 3 | 0 |
| 45 | SORT GROUP BY NOSORT | | 1 | 1 | 0 |00:00:00.01 | 3 | 0 |
|* 46 | TABLE ACCESS FULL | TIBEX_BULKCANCELADMIN | 1 | 1 | 0 |00:00:00.01 | 3 | 0 |
Predicate Information (identified by operation id):
5 - filter("LASTINSTUSERALIAS"=:SYS_B_1)
8 - access("LASTINSTUSERALIAS"=:SYS_B_1)
10 - filter(("LASTINSTUSERALIAS" IS NOT NULL AND "LASTINSTUSERALIAS"=:SYS_B_1))
12 - filter(("LASTINSTUSERALIAS" IS NOT NULL AND "LASTINSTUSERALIAS"=:SYS_B_1))
14 - filter(("LASTINSTUSERALIAS" IS NOT NULL AND "LASTINSTUSERALIAS"=:SYS_B_1))
16 - filter("USERALIAS"=:SYS_B_1)
18 - filter("USERALIAS"=:SYS_B_1)
20 - access("USERALIAS"=:SYS_B_1)
22 - access("USERALIAS"=:SYS_B_1)
24 - access("USERALIAS"=:SYS_B_1)
26 - filter(("USERALIAS" IS NOT NULL AND "USERALIAS"=:SYS_B_1))
28 - access("USERALIAS"=:SYS_B_1)
30 - access("USERALIAS"=:SYS_B_1)
32 - access("USERALIAS"=:SYS_B_1)
34 - access("USERALIAS"=:SYS_B_1)
36 - access("USERALIAS"=:SYS_B_1)
38 - access("USERALIAS"=:SYS_B_1)
PLAN_TABLE_OUTPUT
40 - access("USERALIAS"=:SYS_B_1)
42 - access("USERALIAS"=:SYS_B_1)
44 - filter("USERALIAS"=:SYS_B_1)
46 - filter("USERALIAS"=:SYS_B_1)
249 rows selected. -
Automatic DOP take more time to execute query
We upgraded database to oracle 11gR2. While testing Automatic DOP feature with our existing query it takes more time than with parallel.
Note: No constrains or Index created on table to gain performance while loading data (5000records / sec)
Os : Sun Solaris 64bit
CPU = 8
RAM = 7456M
Default parameter settings:
parallel_degree_policy string MANUAL
parallel_degree_limit string CPU
parallel_threads_per_cpu integer 2
arallel_degree_limit string CPU
cpu_count integer 8
parallel_threads_per_cpu integer 2
resource_manager_cpu_allocation integer 8
Query:
SELECT COUNT(*)
from (
SELECT
/*+ FIRST_ROWS(50), PARALLEL */
Query gets executed in 22minutes : execution plan
COUNT(*)
9600
Elapsed: 00:22:10.71
Execution Plan
Plan hash value: 3765539975
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart| Pstop |
| 0 | SELECT STATEMENT | | 1 | 21 | 2164K (1)| 07:12:52 | | |
| 1 | SORT AGGREGATE | | 1 | 21 | | | | |
| 2 | PARTITION RANGE OR| | 89030 | 1825K| 2164K (1)| 07:12:52 |KEY(OR)|KEY(OR)|
|* 3 | TABLE ACCESS FULL| SUBSCRIBER_EVENT | 89030 | 1825K| 2164K (1)| 07:12:52 |KEY(OR)|KEY(OR)|Automatic DOP Query: parameters set
alter session set PARALLEL_DEGREE_POLICY = limited;
alter session force parallel query ;Query:
SELECT COUNT(*)
from (
SELECT /*+ FIRST_ROWS(50), PARALLEL*/
This query takes more than 2hrs to execute
COUNT(*)
9600
Elapsed: 02:07:48.81
Execution Plan
Plan hash value: 127536830
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time | Pstart|Pstop | TQ |IN-OUT| PQ Distrib |
| 0 | SELECT STATEMENT | | 1 | 21 | 150K (1)| 00:30:01 | | | | | |
| 1 | SORT AGGREGATE | | 1 | 21 | | | | | | | |
| 2 | PX COORDINATOR | | | | | | | | | | |
| 3 | PX SEND QC (RANDOM) | :TQ10000 | 1 | 21 | | | | | Q1,00 | P->S | QC (RAND) |
| 4 | SORT AGGREGATE | | 1 | 21 | | | | | Q1,00 | PCWP | |
| 5 | PX BLOCK ITERATOR | | 89030 | 1825K| 150K (1)| 00:30:01 |KEY(OR)|KEY(OR)| Q1,00 | PCWC | |
|* 6 | TABLE ACCESS FULL| SUBSCRIBER_EVENT | 89030 | 1825K| 150K (1)| 00:30:01 |KEY(OR)|KEY(OR)| Q1,00 | PCWP | |
Note
- automatic DOP: Computed Degree of Parallelism is 16 because of degree limitcan some one help us to find out where we did wrong or any pointer will really helpful to resolve an issue.
Edited by: Sachin B on May 11, 2010 4:05 AMGenerated AWR report for ADOP
Foreground Wait Events DB/Inst: HDB/hdb Snaps: 158-161
-> s - second, ms - millisecond - 1000th of a second
-> Only events with Total Wait Time (s) >= .001 are shown
-> ordered by wait time desc, waits desc (idle events last)
-> %Timeouts: value of 0 indicates value was < .5%. Value of null is truly 0
Avg
%Time Total Wait wait Waits % DB
Event Waits -outs Time (s) (ms) /txn time
direct path read 522,173 0 125,051 239 628.4 99.3
db file sequential read 663 0 156 235 0.8 .1
log file sync 165 0 117 712 0.2 .1
Disk file operations I/O 267 0 63 236 0.3 .1
db file scattered read 251 0 36 145 0.3 .0
control file sequential re 217 0 32 149 0.3 .0
library cache load lock 2 0 10 4797 0.0 .0
cursor: pin S wait on X 3 0 9 3149 0.0 .0
read by other session 5 0 2 429 0.0 .0
kfk: async disk IO 613,170 0 2 0 737.9 .0
sort segment request 1 100 1 1007 0.0 .0
os thread startup 16 0 1 43 0.0 .0
direct path write temp 1 0 1 527 0.0 .0
latch free 51 0 0 2 0.1 .0
kksfbc child completion 1 100 0 59 0.0 .0
latch: cache buffers chain 19 0 0 2 0.0 .0
latch: shared pool 36 0 0 1 0.0 .0
PX Deq: Slave Session Stat 21 0 0 1 0.0 .0
library cache: mutex X 45 0 0 1 0.1 .0
CSS initialization 2 0 0 6 0.0 .0
enq: KO - fast object chec 1 0 0 11 0.0 .0
buffer busy waits 3 0 0 1 0.0 .0
cursor: pin S 9 0 0 0 0.0 .0
CSS operation: action 2 0 0 1 0.0 .0
direct path write 1 0 0 2 0.0 .0
jobq slave wait 17,554 100 8,942 509 21.1
PX Deq: Execute Reply 4,060 95 7,870 1938 4.9
SQL*Net message from clien 96 0 5,756 59962 0.1
PX Deq: Execution Msg 618 56 712 1152 0.7
KSV master wait 11 0 0 2 0.0
PX Deq: Join ACK 16 0 0 1 0.0
PX Deq: Parse Reply 14 0 0 1 0.0
Background Wait Events DB/Inst: HDB/hdb Snaps: 158-161
-> ordered by wait time desc, waits desc (idle events last)
-> Only events with Total Wait Time (s) >= .001 are shown
-> %Timeouts: value of 0 indicates value was < .5%. Value of null is truly 0
Avg
%Time Total Wait wait Waits % bg
Event Waits -outs Time (s) (ms) /txn time
control file sequential re 6,249 0 2,375 380 7.5 55.6
control file parallel writ 2,003 0 744 371 2.4 17.4
db file parallel write 1,604 0 503 313 1.9 11.8
log file parallel write 861 0 320 371 1.0 7.5
db file sequential read 363 0 151 415 0.4 3.5
db file scattered read 152 0 64 421 0.2 1.5
Disk file operations I/O 276 0 21 77 0.3 .5
os thread startup 316 0 15 48 0.4 .4
ADR block file read 24 0 11 450 0.0 .3
rdbms ipc reply 17 12 7 403 0.0 .2
Data file init write 6 0 6 1016 0.0 .1
direct path write 21 0 6 287 0.0 .1
log file sync 7 0 6 796 0.0 .1
ADR block file write 10 0 4 414 0.0 .1
enq: JS - queue lock 1 0 3 2535 0.0 .1
ASM file metadata operatio 1,801 0 2 1 2.2 .0
db file parallel read 30 0 1 40 0.0 .0
kfk: async disk IO 955 0 1 1 1.1 .0
db file single write 1 0 0 415 0.0 .0
reliable message 10 0 0 23 0.0 .0
latch: shared pool 75 0 0 2 0.1 .0
latch: call allocation 26 0 0 2 0.0 .0
CSS initialization 7 0 0 6 0.0 .0
asynch descriptor resize 352 100 0 0 0.4 .0
undo segment extension 2 100 0 5 0.0 .0
CSS operation: action 9 0 0 1 0.0 .0
CSS operation: query 42 0 0 0 0.1 .0
latch: parallel query allo 4 0 0 0 0.0 .0
rdbms ipc message 37,948 97 104,599 2756 45.7
DIAG idle wait 16,762 100 16,927 1010 20.2
ASM background timer 1,724 0 8,467 4912 2.1
shared server idle wait 282 100 8,465 30019 0.3
pmon timer 3,123 90 8,465 2711 3.8
wait for unread message on 8,381 100 8,465 1010 10.1
dispatcher timer 141 100 8,463 60019 0.2
Streams AQ: qmn coordinato 604 50 8,462 14010 0.7
Streams AQ: qmn slave idle 304 0 8,462 27836 0.4
smon timer 35 71 8,382 239496 0.0
Space Manager: slave idle 1,621 99 8,083 4986 2.0
PX Idle Wait 2,392 99 4,739 1981 2.9
class slave wait 46 0 623 13546 0.1
KSV master wait 2 0 0 27 0.0
SQL*Net message from clien 7 0 0 1 0.0
Wait Event Histogram DB/Inst: HDB/hdb Snaps: 158-161
-> Units for Total Waits column: K is 1000, M is 1000000, G is 1000000000
-> % of Waits: value of .0 indicates value was <.05%; value of null is truly 0
-> % of Waits: column heading of <=1s is truly <1024ms, >1s is truly >=1024ms
-> Ordered by Event (idle events last)
% of Waits
Total
Event Waits <1ms <2ms <4ms <8ms <16ms <32ms <=1s >1s
ADR block file read 24 100.0
ADR block file write 10 100.0
ADR file lock 12 100.0
ASM file metadata operatio 1812 99.0 .3 .4 .2 .1
CSS initialization 9 100.0
CSS operation: action 11 90.9 9.1
CSS operation: query 54 100.0
Data file init write 6 16.7 16.7 16.7 50.0
Disk file operations I/O 533 88.7 2.6 .6 1.5 .2 6.4
PX Deq: Signal ACK EXT 4 100.0
PX Deq: Signal ACK RSG 2 100.0
PX Deq: Slave Session Stat 21 42.9 28.6 28.6
SQL*Net break/reset to cli 6 100.0
SQL*Net message to client 102 100.0
SQL*Net more data to clien 4 100.0
asynch descriptor resize 527 100.0
buffer busy waits 4 75.0 25.0
control file parallel writ 2003 9.3 .5 .0 .1 90.0
control file sequential re 6466 10.6 .0 .0 .0 .1 .2 89.0
cursor: pin S 9 100.0
cursor: pin S wait on X 3 33.3 33.3 33.3
db file parallel read 30 6.7 30.0 63.3
db file parallel write 1604 7.4 .1 .6 16.5 75.5
db file scattered read 403 3.7 .2 2.5 13.6 14.9 3.5 61.5
db file sequential read 1017 12.3 .8 2.3 7.3 6.6 2.0 68.8
db file single write 1 100.0
direct path read 522.2 2.2 2.1 .1 .0 1.8 17.9 75.9
direct path write 22 4.5 4.5 90.9
direct path write temp 1 100.0
enq: JS - queue lock 1 100.0
enq: KO - fast object chec 1 100.0
enq: PS - contention 1 100.0
kfk: async disk IO 614.1 100.0 .0
kksfbc child completion 1 100.0
latch free 58 46.6 27.6 15.5 10.3
latch: cache buffers chain 19 36.8 10.5 52.6
latch: call allocation 26 76.9 11.5 7.7 3.8
latch: parallel query allo 4 100.0
latch: shared pool 111 44.1 28.8 27.0
library cache load lock 2 100.0
library cache: mutex X 45 84.4 8.9 4.4 2.2
log file parallel write 861 10.0 .1 .1 89.5 .2
log file sync 172 6.4 90.1 3.5
os thread startup 332 100.0
rdbms ipc reply 18 72.2 11.1 16.7
read by other session 5 100.0
reliable message 11 81.8 9.1 9.1
sort segment request 1 100.0
undo segment extension 2 50.0 50.0
ASM background timer 1724 .8 .6 .1 .6 97.9
DIAG idle wait 16.8K 100.0
KSV master wait 13 7.7 23.1 61.5 7.7
PX Deq: Execute Reply 4060 .4 .0 .0 .1 3.4 96.0
PX Deq: Execution Msg 617 34.7 1.5 2.4 1.5 1.5 .2 .8 57.5
PX Deq: Join ACK 16 93.8 6.3
PX Deq: Parse Reply 14 71.4 7.1 14.3 7.1
PX Idle Wait 2384 .0 .6 99.3
SQL*Net message from clien 103 82.5 1.0 1.9 1.0 13.6
Space Manager: slave idle 1621 .2 99.8
Streams AQ: qmn coordinato 604 50.0 50.0
Wait Event Histogram DB/Inst: HDB/hdb Snaps: 158-161
-> Units for Total Waits column: K is 1000, M is 1000000, G is 1000000000
-> % of Waits: value of .0 indicates value was <.05%; value of null is truly 0
-> % of Waits: column heading of <=1s is truly <1024ms, >1s is truly >=1024ms
-> Ordered by Event (idle events last)Edited by: Sachin B on May 11, 2010 4:52 AM
Maybe you are looking for
-
Hi, I dragged and Dropped and Mp3 File in a Track, and I want to edit/cut some sections of it. How do I acheive this?
-
Ipod touch will not sync with itunes 9
i have a large libary on my ipod touch that wont sync to itunes. Also will not load playlist. Just purchsed a few shows and i try and sync and i says its done but still not on the ipod touch. please help!!
-
Do you have problem with your bluetooth function in Snow Leopard? I have.
I seroiously have problem with the bluebooth function with my Macbook . It is running 10.6.1, which have been upgraded from 10.5.8. Unlike others, my bluetooth function haven't disappeared or disconnected with the wireless devices. But it cannot comm
-
An intelligent way to import already existing directory structure to Aperture
Hello, is there an intelligent way to import already existing big directory structure of photographs (over 2TB) archive into Aperture? I have my catalogue on a disk created in a way: date - short shot description (i.e. "2011-02-14 Name Surname (portr
-
How to disable the "autoload" of pdf in preview and url in Safari
I hate that new feature, How can i disable the "resume" of pdf in preview and url in Safari on every time i restart those prg?