RE: [birt-report-engine-dev] PERFORMANCE

["Chaohua Wang" <chaohua.wang@xxxxxxxxxxxxxxx>]

Hi, Roshanak,

Thank you very much, I increased JVM heap size, it is getting much
better. As what you said, it is related to heap, memory and CPU. 
I tested, when I run report server codes in my computer, it could not
finish 15 threads (1 GB of RAM) (file size is 1120kb). But it is all
right in a server computer (3 GB of RAM). 
I found one rule: more threads, less size, or less threads, more size.
I wonder if there is any way to improve performance besides improving
hardware. I mean how to control the size and threads balance. 

Best Regards,

Chaohua

 


-----Original Message-----
From: birt-report-engine-dev-bounces@xxxxxxxxxxx
[mailto:birt-report-engine-dev-bounces@xxxxxxxxxxx] On Behalf Of
Roshanak Afsarifard
Sent: Friday, June 16, 2006 4:35 PM
To: For developers on the BIRT Report Engine project
Subject: RE: [birt-report-engine-dev] PERFORMANCE

Chaohua,
BIRT report engine can handle multi threads, each request however should
have its own task.
Regards,
Roshanak
-----Original Message-----
From: birt-report-engine-dev-bounces@xxxxxxxxxxx
[mailto:birt-report-engine-dev-bounces@xxxxxxxxxxx] On Behalf Of
Roshanak Afsarifard
Sent: Friday, June 16, 2006 3:12 PM
To: For developers on the BIRT Report Engine project
Subject: RE: [birt-report-engine-dev] PERFORMANCE

Hi Chaohua, 
    Have you tried to increase the JVM heap size? 
You can also try to test with another app server such as Tomcat to see
if you get a different behavior.
What is the machine configuration: CPU speed, memory,...
Best regards,
Roshanak

-----Original Message-----
From: birt-report-engine-dev-bounces@xxxxxxxxxxx
[mailto:birt-report-engine-dev-bounces@xxxxxxxxxxx] On Behalf Of Chaohua
Wang
Sent: Friday, June 16, 2006 9:47 AM
To: For developers on the BIRT Report Engine project
Subject: [birt-report-engine-dev] PERFORMANCE


Hi,

I have developed an application using BIRT 2.1.0 RC3, deployed in
Jboss4.0.2
I wrote a report engine server, which generates pdf file. 
My report engine server will handle multiple threads request. 
Fir example, I want to create 10 pdf files whose size is 600kb. It is
ok,
When I sent 15 requests, which means the engine server will generate 15
pdf files. All files were stopped at 80% done, could not go through any
more. 

Can IReportEngine (a singleton engine) handle multi threads without
limit?  

Chaohua


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