How to improve server response time...

we have two solaris5.8 machines with 4G of Ram in each of the them. So they are pretty big. We have round-robine load balancing... We are using loadRunner to monitor the performance of our applicaion.So far our applicaion has not even pasted 50 users load test. If we are performing the load test the site is not usable because it gets extremely slow. So we thought by
increasing the request thread (in both kxs & kjs)and connection pool size, we might increase the performance but it did just the oppsite. AS the number of user increases the response time inscreases as well...Our application framework is based on MVC. What is the best setting for application server for the large number of users....Currently in production our old application supports 200 users at a time(using loadRunner)
we are using oracle 8i database....
any help will be appreciated!!
Thanks

Hi,
we are having problems with server response on Solaris although this is with
an Informix database and we do not have load balancing set up. Our server
has 3GB of RAM. However the same app ran fine on an NT iPlanet installation
where the server only had 512MB RAM.
This has occasioned a lot of hard work trying to pin down the problem. We
are currently investigating the JDKs. JDK 1.3 almost completely eliminates
the problem we had. Using the java profiler we noticed that in JDK 1.2.2
most of the CPU time seemed to be spent in the socket read and socket accept
methods. I've attached the profile output for JDK1.3 and 1.2.2, there is
certainly a marked difference.
I would be really interested to see if you get similar results. I simply
added -Xrunhprof:cpu=samples to the JAVA_ARGS in iasenv.ksh.
Andy
"Mansoor Quraishi" <[email protected]> wrote in message
news:[email protected]..
we have two solaris5.8 machines with 4G of Ram in each of the them. So
they are pretty big. We have round-robine load balancing... We are
using loadRunner to monitor the performance of our applicaion.So far
our applicaion has not even pasted 50 users load test. If we are
performing the load test the site is not usable because it gets
extremely slow. So we thought by
increasing the request thread (in both kxs & kjs)and connection pool
size, we might increase the performance but it did just the oppsite.
AS the number of user increases the response time inscreases as
well...Our application framework is based on MVC. What is the best
setting for application server for the large number of
users....Currently in production our old application supports 200
users at a time(using loadRunner)
we are using oracle 8i database....
any help will be appreciated!!
Thanks
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How to improve computer response time

I have the computer listed below, but would really like to have faster start both of the system and of the applications. I don´t use my computer for demanding tasks such as video editing, but I still want a quick response from the computer. I have a 7200 rpm drive and I´ve heard that a SSD isn´t going to give me much of an improvement and not worth the money(the only option on a MacBook Pro, I've heard). The amount of storage capacity isn´t a priority: I just wan´t a fast computer for simple everyday tasks and don´t like to wait for a slow hard drive to do it´s work.
In Mac Pro, a striped RAID 0 with 4 identical HDDs should give some improvement, or is this only the case when large files are accessed?
Also it ought to be an even more important thing one dealing with 4 cores and above.
Can one of you Mac Pro guys give me a hint of what would be a good idea?
I have some money to spend.

90% of the time there is no need to use stripped RAID or even mirrored.
There are other ways and I'd start with what you know, then experiment but 'striping' was designed for scratch performance and when storage was limited in size and the only way to get 200MB/sec was with 8 drives and $2k in equipment.
Do some reading on Barefeats for now.
http://www.barefeats.com/hard103.html
http://www.barefeats.com/hard112.html
http://www.barefeats.com/harper13.html
http://techreport.com/articles.x/16130/10
The only time you would want to is working with 2GB files in CS3. Or video. But you really will be hard pressed to outgrow a 10K drive even with the 'pedal to the metal' those are designed to do a lot of work.
Use one drive for OS, one drive for media and library files, 3rd for scratch, 4th as internal backup. Outgrow that first. A Mac Pro is a lot of workstation afterall. And if/when quad-core chips come in more flavors, and more applications can exploit more than 2-4 cores like video and pro apps, you probably don't need 8-cores today. Heck, a dual-core 2.8GHz can handle most any consumer needs.
CPU crunch: various Mac Pro configurations vs others
http://www.barefeats.com/octopro3.html
http://www.barefeats.com/harper7.html
http://www.barefeats.com/hdvid02.html
http://www.barefeats.com/harper.html
iMac vs Mac Pro is a common question
http://www.macworld.com/article/133467/2008/05/imaccomparison.html

How can I improve the response time of the user interface?

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Hi Altenbach,
Thanks for your reply. In answer to your questions:
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The CPU usage is 100%, but I thought this was always the case when using NIDAQ with DAQ cards. Or am I wrong about this? (As a side note, I am using NIDAQ traditional, but would NIDAQmx be better?)
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The program is a bit large to post here, and I'm not sure if my company would be happy for me to publicise it anyway, so I suspect that this is turning into one of those questions that are going to be impossible to answer.
Just as a more general question, why would turning off multi-threading improve the user interface response?
Thanks,
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Dear Consultants,
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Ricky

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regards,

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Thanks for your help. I actually forgot that I posted this and when I saw the email telling me you sent a repsonse I then did another search (using a different phrase) and I found this:
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wassimfrombeirut wrote:
Dear LaPastenague
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Hello Experts,
Am implementing a BAdI to achieve some customer enhancement for XD01 Transaction . I need to confirm to customer that after the implementation and before implementation what is the response time of the system
Response time BEFORE BAdI Implementation
Response time AFTER BAdI Implementation
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Help me in this regard
Best Regards
SRiNi

Hello,
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I hope this information is helpful!
Kind regards,
Geoff Irwin
Senior Support Consultant
SAP Active Global Support

How to capture transaction response time in SQL

I need to capture Transaction response time (i.e. ping test) to calculated the peak hours and averaged
on a daily basis.
and
Page refresh time that is calculated no less than every 2 hours for peak hours and averaged on a daily basis.
Please assist
k

My best guess as to what you are looking for is something like the following (C#):
private int? Ping()
System.Data.SqlClient.SqlConnection objConnection;
System.Data.SqlClient.SqlCommand objCommand;
System.Data.SqlClient.SqlParameter objParameter;
System.Diagnostics.Stopwatch objStopWatch = new System.Diagnostics.Stopwatch();
DateTime objStartTime, objEndTime, objServerTime;
int intToServer, intFromServer;
int? intResult = null;
objConnection = new System.Data.SqlClient.SqlConnection("Data Source=myserver;Initial Catalog=master;Integrated Security=True;Connect Timeout=3;Network Library=dbmssocn;");
using (objConnection)
objConnection.Open();
using (objCommand = new System.Data.SqlClient.SqlCommand())
objCommand.Connection = objConnection;
objCommand.CommandType = CommandType.Text;
objCommand.CommandText = @"select @ServerTime = sysdatetime()";
objParameter = new System.Data.SqlClient.SqlParameter("@ServerTime", SqlDbType.DateTime2, 7);
objParameter.Direction = ParameterDirection.Output;
objCommand.Parameters.Add(objParameter);
objStopWatch.Start();
objStartTime = DateTime.Now;
objCommand.ExecuteNonQuery();
objEndTime = DateTime.Now;
objStopWatch.Stop();
objServerTime = DateTime.Parse(objCommand.Parameters["@ServerTime"].Value.ToString());
intToServer = objServerTime.Subtract(objStartTime).Milliseconds;
intFromServer = objEndTime.Subtract(objServerTime).Milliseconds;
intResult = (int?)objStopWatch.ElapsedMilliseconds;
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return intResult;
Now, while the round trip measurement is fairly accurate give or take 100ms, any measurement of latency to and from SQL Server is going to be subject to the accuracy of the time synchronization of the client and server. If the server's and client's
time isn't synchronized precisely then you will get odd results in the variables intToServer and intFromServer.
Since the round trip result of the test is measured entirely on the client that value isn't subject to the whims of client/server time synchronization.

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I am trying to get average query response time for BW queries with a script (for monitoring/historisation).
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Hi Experts,
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How many files are being downloaded onto the page?
What is the approximate file size of these images?
How many machines have you tested this on?
What Operating System?
Yes your computer if dated and running Windows XP (Good ol Microsoft) run slow as crap with all the patches they push out to slow down your system, ergh I mean to fix your system.
Anyhow you have many many factors.
1. Size really is not an issue in todays day and age unless your dealing with dial up its not 1995 AOL were in the age of HIGH SPEED
2. Users computer system configuration
3. Your hosts output and how they regulate the bandwidth to the little people such as us who work for a living over those big corps out their
4. Browsers are you testing older vesions or newer version
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If "read from spreadsheet file" is the main time hog, consider dropping it! It is a high-level, very multipurpose VI and thus carries a lot of baggage around with it. (you can double-click it and look at the "guts" )
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Anything involving formatted text is not very efficient. Consider a direct binary file format for your data files, it will read MUCH faster and take up less disk space.
LabVIEW Champion . Do more with less code and in less time .

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Bryan,
If "read from spreadsheet file" is the main time hog, consider dropping it! It is a high-level, very multipurpose VI and thus carries a lot of baggage around with it. (you can double-click it and look at the "guts" )
If the files come from a just executed "list files", you can assume the files all exist and you want to read them in one single swoop. All that extra detailed error checking for valid filenames is not needed and you never e.g. want it to popup a file dialog if a file goes missing, but simply skip it silently. If open generates an error, just skip to the next in line. Case closed.
I would do a streamlined low level "open->read->close" for each and do the "spreadsheet string to array" in your own code, optimized to the exact format of your files. For example, notice that "read from spreadheet file" converts everything to SGL, a waste of CPU if you later need to convert it to DBL for some signal processing anyway.
Anything involving formatted text is not very efficient. Consider a direct binary file format for your data files, it will read MUCH faster and take up less disk space.
LabVIEW Champion . Do more with less code and in less time .

How to improve the activation time for a standard DSO

Hi all,
I'm facing an issue related to the activation of a DSO. The SM37 log is as follows....
12:03:16 Job started
12:03:16 Step 001 started (program RSPROCESS, variant &0000000006946, user ID BWREMOTE)
12:03:20 Attivazione is running: Data target ZFIZIASA, from 93,627 to 93,627
12:18:00 Overlapping check with archived data areas for InfoProvider ZFIZIASA
12:18:00 Data to be activated successfully checked against archiving objects
12:18:02 Status transition 2 / 2 to 7 / 7 completed successfully
12:18:13 Program RSBATCH_EXECUTE_PROZESS successfully scheduled as job BIBCTL_4IC45QJA588GKZ0M7JEJ3HCAR with ID 1218130
12:18:19 Program RSBATCH_EXECUTE_PROZESS successfully scheduled as job BIBCTL_4IC45QJA588GKZ0M7JEJ3HCAR with ID 1218190
12:18:20 Parallel processes (for Attivazione); 000003
12:18:20 Timeout for parallel process (for Attivazione): 000300
12:18:20 Package size (for Attivazione): 020000
12:18:20 Task handling (for Attivazione): Processi batch
12:18:20 Server group (for Attivazione): Nessun gruppo di server config
12:18:20 Activation started (process is running under user BWREMOTE)
12:18:20 Not all data fields were updated in mode "overwrite"
12:18:20 Process started
12:18:20 Process completed
12:18:20 Activation ended
Please have a look into the bold 3rd & 4th line. I couldnt able to analyse where the issue is and what to do to minimize the time for activation.
It is very challenging, please reply!
Please help.
Thanks in adv.
Ajay

Hi Kundan,
Thanks for the response!
Actually, I have two identical DSO, having all the char & KF same and feeding the data from same DS at the same time but the issue is...
1) For 1st DSO, Activation log....
01.07.2010 02:02:41 Job started
01.07.2010 02:02:41 Step 001 started (program RSPROCESS, variant &0000000006946, user ID BWREMOTE)
01.07.2010 02:02:46 Attivazione is running: Data target ZFIZIASA, from 93,751 to 93,751
01.07.2010 02:19:27 Overlapping check with archived data areas for InfoProvider ZFIZIASA
01.07.2010 02:19:27 Data to be activated successfully checked against archiving objects
01.07.2010 02:19:27 Status transition 2 / 2 to 7 / 7 completed successfully
01.07.2010 02:19:28 Program RSBATCH_EXECUTE_PROZESS successfully scheduled as job BIBCTL_4ICC6UMXYT00Z2DYOQV8QL8CJ with ID 021
01.07.2010 02:19:30 Parallel processes (for Attivazione); 000003
01.07.2010 02:19:30 Timeout for parallel process (for Attivazione): 000600
01.07.2010 02:19:30 Package size (for Attivazione): 020000
01.07.2010 02:19:30 Task handling (for Attivazione): Processi batch
01.07.2010 02:19:30 Server group (for Attivazione): Nessun gruppo di server config
01.07.2010 02:19:30 Activation started (process is running under user BWREMOTE)
01.07.2010 02:19:30 Not all data fields were updated in mode "overwrite"
01.07.2010 02:19:30 Activation ended
2) For 2nd DSO, the activation log is..
01.07.2010 02:01:13 Job started
01.07.2010 02:01:13 Step 001 started (program RSPROCESS, variant &0000000006947, user ID BWREMOTE)
01.07.2010 02:01:35 Attivazione is running: Data target ZFIGL_02, from 93,749 to 93,749
01.07.2010 02:01:43 Overlapping check with archived data areas for InfoProvider ZFIGL_02
01.07.2010 02:01:43 Data to be activated successfully checked against archiving objects
01.07.2010 02:01:53 Program RSBATCH_EXECUTE_PROZESS successfully scheduled as job BIBCTL_4ICCAR91ALHE1VHSB6GV9PAPV with ID 02015300
01.07.2010 02:01:54 Program RSBATCH_EXECUTE_PROZESS successfully scheduled as job BIBCTL_4ICCAR91ALHE1VHSB6GV9PAPV with ID 02015400
01.07.2010 02:01:56 Program RSBATCH_EXECUTE_PROZESS successfully scheduled as job BIBCTL_4ICCAR91ALHE1VHSB6GV9PAPV with ID 02015600
Now my client is asking to lower the activation time for 1st one as it is taking for 2nd one.
I'm toatally blank now that what & how to do it!
The volume of data ...
ZFIZIASA
Active table - Number of entries: 13.960.508
Change Log Table - Number of entries: 13.976.530
ZFIGL_02
Active Table - Number of entries: 21.923.947
Change Log table - Number of entries: 21.938.657
Thanks,
ajay
Edited by: sap.ajaykumar on Jul 6, 2010 1:47 PM

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