CrEme 4.0 (beta) GUI performance using different API's

Hi
Written a prototype that uses several buttons, a few drop downs,
couple of textfields, one or two small images and a few different
kinds of layouts.
Did this with Swing, AWT and SWT from the Eclipse distribution.
In my prototype I found that SWT is by far the fastest API for a GUI,
everything is just smooth and the startup seems faster too.
Next is AWT, things seem to take twice as much time as with
SWT (and u lose editable drop downs if u cant impl one in AWT yourself).
Swing just feels painful , much slower performance than AWT (not
a surprise tho since it's built on top of AWT).
I recommend everyone to try SWT if your JVM can run it.

Just to clarify.
The PDA I used is iPAQ 6340 (64mb RAM, 240x320
display, 65536 colors, TI OMAP1510 CPU up to 168 Mhz afaik)

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Best practice to monitor 10gR3 OSB performance using JMX API?

Hi guys,
I need some advice on the best practice to monitor 10gR3 OSB performance using JMX API.
Jus to show I have done my home work, I managed to get the JMX sample code from
http://download.oracle.com/docs/cd/E13159_01/osb/docs10gr3/jmx_monitoring/example.html#wp1109828
working.
The following is the list of options I am think about:
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Hi Manoj,
Thanks for getting back. I am afraid configuring aggregation interval from Dashboard doesn't solve problem as I need to collect stats data of endpoint URI or in hourly or daily basis, then output to CSV files so line graphs can be drawn for chosen applications.
Just for those who may be interested. It's not possible to use SQL to query database tables to extract OSB stats for a specified time period, say 9am - 5pm. I raised a support case already and the response I got back is 'No'.
That means using JMX API will be the way to go :)
Has anyone actually done this kind of OSB stats report and care to give some pointers?
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http://download.oracle.com/docs/cd/E12840_01/wls/docs103/jmxinst/timer.html instead of Java's Timer class.
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Thanks,
Regards,
Sam

Value mapping performance using LookUp API

All,
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Hi,
Have you seen this weblogs by Prasad recently:
/people/prasad.illapani/blog/2007/03/08/performance-tuning-checks-in-sap-exchange-infrastructure
/people/prasad.illapani/blog/2007/04/20/performance-tuning-checks-in-sap-exchange-infrastructurexi-part-ii
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---Satish

Subquery vs UNION, which is better for performance?

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Hi,
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How to improve query performance using infoset

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Hi
As info set itself doesn't have any data so it improves Performance
also go through the below tips.
Find the query Run-time
where to find the query Run-time ?
557870 'FAQ BW Query Performance'
130696 - Performance trace in BW
This info may be helpful.
General tips
Using aggregates and compression.
Using less and complex cell definitions if possible.
1. Avoid using too many nav. attr
2. Avoid RKF and CKF
3. Many chars in row.
By using T-codes ST03 or ST03N
Go to transaction ST03 > switch to expert mode > from left side menu > and there in system load history and distribution for a particular day > check query execution time.
Statistical Records Part 4: How to read ST03N datasets from DB in NW2004
How to read ST03N datasets from DB
Try table rsddstats to get the statistics
Using cache memory will decrease the loading time of the report.
Run reporting agent at night and sending results to email. This will ensure use of OLAP cache. So later report execution will retrieve the result faster from the OLAP cache.
Also try
1. Use different parameters in ST03 to see the two important parameters aggregation ratio and records transferred to F/E to DB selected.
2. Use the program SAP_INFOCUBE_DESIGNS (Performance of BW infocubes) to see the aggregation ratio for the cube. If the cube does not appear in the list of this report, try to run RSRV checks on the cube and aggregates.
Go to SE38 > Run the program SAP_INFOCUBE_DESIGNS
It will shown dimension Vs Fact tables Size in percent.If you mean speed of queries on a cube as performance metric of cube,measure query runtime.
3. To check the performance of the aggregates,see the columns valuation and usage in aggregates.
Open the Aggregates...and observe VALUATION and USAGE columns.
"---" sign is the valuation of the aggregate. You can say -3 is the valuation of the aggregate design and usage. ++ means that its compression is good and access is also more (in effect, performance is good). If you check its compression ratio, it must be good. -- means the compression ratio is not so good and access is also not so good (performance is not so good).The more is the positives...more is useful the aggregate and more it satisfies the number of queries. The greater the number of minus signs, the worse the evaluation of the aggregate. The larger the number of plus signs, the better the evaluation of the aggregate.
if "-----" then it means it just an overhead. Aggregate can potentially be deleted and "+++++" means Aggregate is potentially very useful.
In valuation column,if there are more positive sign it means that the aggregate performance is good and it is useful to have this aggregate.But if it has more negative sign it means we need not better use that aggregate.
In usage column,we will come to know how far the aggregate has been used in query.
Thus we can check the performance of the aggregate.
Refer.
http://help.sap.com/saphelp_nw70/helpdata/en/b8/23813b310c4a0ee10000000a114084/content.htm
http://help.sap.com/saphelp_nw70/helpdata/en/60/f0fb411e255f24e10000000a1550b0/frameset.htm
performance ISSUE related to AGGREGATE
Note 356732 - Performance Tuning for Queries with Aggregates
Note 166433 - Options for finding aggregates (find optimal aggregates for an InfoCube)
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Also your query performance can depend upon criteria and since you have given selection only on one infoprovider...just check if you are selecting huge amount of data in the report
Check for the query read mode in RSRT.(whether its A,X or H)..advisable read mode is X.
5. In BI 7 statistics need to be activated for ST03 and BI admin cockpit to work.
By implementing BW Statistics Business Content - you need to install, feed data and through ready made reports which for analysis.
http://help.sap.com/saphelp_nw70/helpdata/en/26/4bc0417951d117e10000000a155106/frameset.htm
/people/vikash.agrawal/blog/2006/04/17/query-performance-150-is-aggregates-the-way-out-for-me
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/1955ba90-0201-0010-d3aa-8b2a4ef6bbb2
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/ce7fb368-0601-0010-64ba-fadc985a1f94
http://help.sap.com/saphelp_nw04/helpdata/en/c1/0dbf65e04311d286d6006008b32e84/frameset.htm
You can go to T-Code DB20 which gives you all the performance related information like
Partitions
Databases
Schemas
Buffer Pools
Tablespaces etc
use tool RSDDK_CHECK_AGGREGATE in se38 to check for the corrupt aggregates
If aggregates contain incorrect data, you must regenerate them.
202469 - Using aggregate check tool
Note 646402 - Programs for checking aggregates (as of BW 3.0B SP15)
You can find out whether an aggregate is usefull or useless you can find out through a proccess of checking the tables RSDDSTATAGGRDEF*
Run the query in RSRT with statistics execute and come back you will get STATUID... copy this and check in the table...
This gives you exactly which infoobjects it's hitting, if any one of the object is missing it's useless aggregate.
6
Check SE11 > table RSDDAGGRDIR . You can find the last callup in the table.
Generate Report in RSRT
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/cccad390-0201-0010-5093-fd9ec8157802
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/4c0ab590-0201-0010-bd9a-8332d8b4f09c
Business Intelligence Journal Improving Query Performance in Data Warehouses
http://www.tdwi.org/Publications/BIJournal/display.aspx?ID=7891
Achieving BI Query Performance Building Business Intelligence
http://www.dmreview.com/issues/20051001/1038109-1.html
Assign points if useful
Cheers
SM

How can I use different calendars associated with different emails to see appointments separately?

I have 3 emails accounts on my Blackberry curve. I want to use different calendars for different type of reminders/appointments. How can I do that? In calendar I pressed menu key and then clicked on select calendar, choose one email address (email 1) then entered an alarm but now if I go to a different calendar associated with different email ( email 2), it also shows me that alarm which I entered in email 1 calendar. Thanks for help

Don't have LV handy to open the old code, but I did read through the thread you referenced. It sounds like the example configured 2 counters to create the variable-freq finite pulse train and configured a 3rd counter to count the # steps generated as verification. That 3rd counter would be a problem for you as there is no internal timing signal connection between your 2 USB devices. You would need to run a physical wire connection and change some of the config code to match. Alternately, you could just delete all the code associated with the 3rd counter for now because it isn't strictly necessary.
Further advice/questions: Are you planning on a pure sine wave of frequency such that you oscillate with both positive and negative velocity (example: varying from -1000 to +1000 Hz clockwise)? Or is there a nominal average frequency with a small sine wave superimposed (example: nominal of 1000 Hz clockwise, variation of +/- 50 Hz)?
I *think* you may be dealing with more of a continuous pulsetrain situation, which is actually much simpler. You would only need 1 counter/timer, though you would still perform the freq changes in a timed loop which uses the pulsetrain as its timing source. You'd just need to keep track of your total elapsed time so you could figure out the right sinusoidal freq value at the moment you're ready to update it.
Another subtlety to watch out for if you're oscillating about 0 velocity -- don't try to create a frequency that is lower than the rate at which you need to update. Also, with steppers you may have mechanical stability issues at low freqs like 10's to low 100's of Hz. These kinds of things may need to be managed as special cases which force you to deviate from a "pure" sine wave.
-Kevin P.

I use different languages in my daily activities, when typing other than English Mac does not recognize them, is there anyway can Mac stop suggesting or automatically correcting me?

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Is this a problem with the computer or with the word processor? MS Word for example seems to think its grammar and spelling are better than mine - they are not. You have to go into MS Word preferences and uncheck all the useless "help" it wants to provide.

I have 2 macs and 2 PC laptops in my home wireless network. Can I use the Airport/Time Capsule hard drive to back up all 4 machines? I know that I will have to use different back up software on the PCs, but is it possible over the wireless network?

I have 2 macs and 2 PC (Windows 7) laptops in my home wireless network. (The iMac is hardwired via ethernet to the Airport/Time Capsule; the others are wireless connections using Airport). I want to use the hard disk drive in the Time Capsule as a network backup drive for all 4 computers. Is this possible? Could someone help me by telling me how to configure it? I know I will have to use different backup software in the 2 Windows 7 Laptops? Do I need to use the Windows backup software, or can I use a third party program like Acronis True Image? Thanks in advance for the help

It is your fault, pondini.. all your fault.
I read of all the things that go wrong restoring Time Machine backups.. particularly stupid things like mail, photo libraries don't go back.. etc. And looking through the incredible number of issues people have here, when their Mac finally takes a dive how hard it is to restore.
I restored a test hard disk from a TC.. and it takes ages and ages to even make up its mind to start.
I worked in computer support for ages, but not Macs.. so my experience is ghost.. ghost images.. on large commercial server setups, can stream restore to multiple computers at once.. even doing it computer by computer the image is simple as network boot to restore. But ghost went the way of Symantec.. sigh!! And was destroyed.
A product like clonezilla, Free linux boot cd.
http://lifehacker.com/5078397/clonezilla-backs-up-and-restores-your-disks
Can backup a Hard disk in just about any format.. yet to try it on a Mac to a TC.. but I will. Boot from CD.. instead of your lost Lion partition which no longer exists (because the hard drive had to be replaced) and the DVD they no longer give you, and restore the entire hard disk in a couple of hours .. to the exact image at the point you made the clone.. in any format, with any partitions.
My bet is that it will kill TM .. but you could be right.
It is just the prospect of all those permission changes, photos and mail libraries etc that worry me.

"Message from Webpage (error) There was an error in the browser while setting properties into the page HTML, possibly due to invalid URLs or other values. Please try again or use different property values."

I created a site column at the root of my site and I have publishing turned on. I selected the Hyperlink with formatting and constraints for publishing.
I went to my subsite and added the column. The request was to have "Open in new tab" for their hyperlinks. I was able to get the column to be added and yesterday we added items without a problem.
The problem arose when, today, a user told me that he could not edit the hyperlink. He has modify / delete permissions on this list.
He would edit the item, in a custom list, and click on the address "click to add a new hyperlink" and then he would get the error below after succesfully putting in the Selected URL (http://www.xxxxxx.com), Open
Link in New Window checkbox, the Display Text, and Tooltip:
"Message from Webpage There was an error in the browser while setting properties into the page HTML, possibly due to invalid URLs or other values. Please try again or use different property values."
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The farm is running SharePoint 2010 SP2 Enterprise Edition August 2013 CU Mark 2, 14.0.7106.5002
and I saw in another post, below with someone who had a similar problem and the IISreset fixed it, as did this problem. I wonder if this is resolved in the latest updated CU of SharePoint, the April 2014 CU?
Summary from this link below: Comment out, below, in AssetPickers.js
//callbackThis.VerifyAnchorElement(HtmlElement, Config);
perform IISReset
This is referenced in the item below:
http://social.technet.microsoft.com/Forums/en-US/d51a3899-e8ea-475e-89e9-770db550c06e/message-from-webpage-error-there-was-an-error-in-the-browser-while-setting?forum=sharepointgeneralprevious
TThThis is possibly the same information that I saw, possibly from the above link as reference.
http://seanshares.com/post/69022029652/having-problems-with-sharepoint-publishing-links-after
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I don't mind changing the JS file, however I'd like to know / see if there is anything official regarding this instead of my having to change files.
Thank you!
Matt

We had the same issue after applying the SP2 & August CU. we open the case with MSFT and get the same resolution as you mentioned.
I blog about this issue and having the office reference.
Later MSFT release the Hotfix for this on December 10, 2013 which i am 100% positive should be part of future CUs.
So if you apply the April CU then you will be fine.
Please remember to mark your question as answered &Vote helpful,if this solves/helps your problem. ****************************************************************************************** Thanks -WS MCITP(SharePoint 2010, 2013) Blog: http://wscheema.com/blog

What are the better load/performance testing tools available for Flex Application with BlazeDS RO?

In my application is designed with Flex3, ActionScript3, BlazeDS Remote Objects.
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Your approach is fine, depending on how many and what type of CFCs you are talking about. If they are "singletons" - that is, only one instance of each CFC is needed to be in memory and can be reused/shared from multiple parts of your application - caching them in the application scope is common. Just make sure they are thread safe ("var" or local.* all your method variables).
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Poor Performance using Generic Conectivity for ODBC

Hi my friends.
I have a problem usign Generic Conectivity , I need update 500,000 records in MS SQL Server 2005, I'm using Generic Conectivity for ODBC. In my Oracle Database i have create a DB_LINK called TEST to redirect to MS SQL Server database.
Oracle Database: 10.2.0.4
MS SQL Server version: 2005
The time for update 1,000 records in MS SQL Server using DBMS_HS_PASSTHROUGH is ten minutes. This is a poor performance.
This is de PL/SQL
DECLARE
c INTEGER;
nr INTEGER;
CURSOR c_TEST
IS
SELECT "x", "y"
FROM TEST_cab
WHERE ROWNUM <= 1000
ORDER BY "y";
BEGIN
FOR cur IN c_TEST
LOOP
c := DBMS_HS_PASSTHROUGH.OPEN_CURSOR@TEST;
DBMS_HS_PASSTHROUGH.PARSE@TEST(
c,
'UPDATE sf_TEST_sql
SET observation= ?
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DBMS_HS_PASSTHROUGH.BIND_VARIABLE@TEST (c, 2, 'N');
DBMS_HS_PASSTHROUGH.BIND_VARIABLE@TEST (c, 3, 'ELABORADO');
DBMS_HS_PASSTHROUGH.BIND_VARIABLE@TEST (c, 4, 'PENDIENTE');
DBMS_HS_PASSTHROUGH.BIND_VARIABLE@TEST (c, 5, cur."x");
DBMS_HS_PASSTHROUGH.BIND_VARIABLE@TEST (c, 6, cur."y");
nr := DBMS_HS_PASSTHROUGH.EXECUTE_NON_QUERY@TEST (c);
DBMS_HS_PASSTHROUGH.CLOSE_CURSOR@TEST (c);
COMMIT;
END LOOP;
END;
You can help, how better the performance for update 500,000 record by record in MS SQL Server. I need advantages of use Oracle Transparent Gateway for Microsoft SQL Server.
your's can suggest my another solution ?
Thanks.

Hi,
There are no real parameters to tune the gateways. You should turn on gateway debug tracing and check the SQL that is being sent to SQL*Server to make sure is update statements and nothing else.
If this is the case then the time taken will be down to various factors, such as network delays, processing on SQL*Server and so on.
How long does it take to update the same number of records directly on SQL*Server without the Oracle or the gateway involved or if you use another non-Oracle client to do the same updates across a network, if a network is involved ?
It may be possible to improve performance by changing the HS_RPC_FETCH_REBLOCKING parameter, so have a look at this note in My Oracle Support -
Tuning Generic Connectivity And Gateways (Doc ID 230543.1)
Regards,
Mike

Is there a way to use different NIC names in 10g RAC?

For example node 1 has ipge0 for private, ipge1 for private and node 2 has Solaris default e1000g0 and e1000g1? Or do interface names have to match on all nodes? I am not referring to IPs or subnets - just NIC names.
Here is some background.
This was a 2 node 10g RAC on Solaris that has been in operation for years. Node 2 experienced a corrupt root partition (OS, nothing to do with Oracle), so OS was reinstalled. After OS reinstall I copied /var/opt/oracle/*.* from node 1, changed them to reflect node 2 info, plus CRS related files from /etc/init.d, such as init.crsd, etc. This is shared Oracle home, so Oracle continued to run on node 1 just fine.
However, after crs startup nodeapps tells me "atlts04ra.atlts04.vip:ifconfig: status: SIOCGLIFFLAGS: ipge0: no such interface". Indeed, this interface does not exist on node 2.
So, is there a way to instruct oracle to use different interface names for nodes? Or will vipca ask for matching NIC names just like disk mount names have to match?
I want to avoid reinstallation of RAC because that will disrupt oracle database that has been running on shared oracle home all along.
Thanks.

Fzheng, I am very interested in your statement "however you can change the e1000g0 to ipge0".
You mean to say there is an OS script that will downgrade ipge0 interfaces to e1000g0?
I got some more information from SysAdmins yesterday. Apparently, when OS was reinstalled on node 2 after root partition corruption, they also patched it up to Solaris 10u9 (which by default created e1000g0-type interfaces). The first node still had 10u7 with ipge0 interfaces. We, the DBAs, were not aware of the upgrade. So, nodeapps cant start saying "no such interface"on node 2.
You are probably referring to script /usr/sbin/e1000g_transition.
Here is the description:
"DESCRIPTION
This script allows you to perform an optional driver upgrade
for the Intel PRO/1000 device present on this system from the \"ipge\"
network driver to the Sun standard \"e1000g\" network driver. The
e1000g driver include features such as link aggregation as well as
superior performance in most environments. Moving forward, e1000g
will benefit from new features as they become available, bug fixes,
and performance enhancements. The disadvantage is that some
applications configuration files may require modification to use
e1000g if they reference the ipge network interface.
This script must be run in single user mode.
This script will alter network interfaces and related system
configuration files. Configuration files for 3rd party applications
will NOT be changed. After running this script, applications present
on the system may require maintenance. The system may be in an
unsecured state. The effects of this script may be reversed using
the backout (-b) option."
So, if I understand you correctly, you are proposing to run this this script with the backout (-b) option on node 2, so interface names will match.
Is this correct?
Thanks.
Vladimir Grigorian.
http://vgrigorian.com

Which is better from performance point of view : Enum or String?

Hello All
While working to re-factor code so as to improve performance,I saw that repeatedly some Strings are used to be put as keys in a HashMap.
Will there be an improvement in performance if I assign use enums in place of using double quoted strings everytime.
Also,Is it a better idea to use string constants rather than enums.
Can anyone help me over this?
Thanks in advance
Mansi

Found an article in Java performance tuning book.But they nowhere mentioned the perfect reason for doing this.Here's the artice :
Enumerating constants
Another canonicalization technique often used is replacing constant objects with integers. For example, rather than use the strings "female" and "male", you should use a constant defined in an interface:
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