Have you deployed your application on another platform ?
Is it the same on your development system ?
Are you calling the same action every time and what is this action doing ?
sajanv007 wrote:
sOME MORE TRACES
CPU SAMPLES BEGIN (total = 8868) Sat Sep 6 12:29:17 2008
rank self accum count trace method
1 20.44% 20.44% 1813 303423 ognl.SimpleNode.evaluateGetValueBody
2 12.55% 33.00% 1113 300397 java.net.PlainSocketImpl.socketAccept
3 8.37% 41.36% 742 300856 java.net.SocketInputStream.socketRead0
4 7.81% 49.18% 693 303426 ognl.Ognl.getValue
5 4.52% 53.70% 401 303853 ognl.ASTProperty.getValueBody
6 4.18% 57.88% 371 302117 java.net.PlainDatagramSocketImpl.receive0
7 4.18% 62.07% 371 301880 java.net.SocketInputStream.socketRead0
sajanv007 wrote:
These are HProf results
CPU SAMPLES BEGIN (total = 3267) Sat Sep 6 12:27:45 2008
rank self accum count trace method
1 15.70% 15.70% 513 300397 java.net.PlainSocketImpl.socketAccept
2 10.47% 26.17% 342 300856 java.net.SocketInputStream.socketRead0
3 5.23% 31.40% 171 302117
java.net.PlainDatagramSocketImpl.receive0
4 5.23% 36.64% 171 301880 java.net.SocketInputStream.socketRead0
5 5.23% 41.87% 171 301035
weblogic.socket.DevPollSocketMuxer.doPoll
6 3.28% 45.15% 107 303426 ognl.Ognl.getValue
7 2.48% 47.63% 81 301738 sun.reflect.Reflection.getCallerClass
8 1.99% 49.62% 65 300923 java.lang.String.intern
9 1.87% 51.48% 61 303423 ognl.SimpleNode.evaluateGetValueBody
10 1.81% 53.29% 59 300505 java.util.zip.ZipFile.getEntry
11 1.56% 54.85% 51 301639 java.lang.Throwable.fillInStackTrace
12 1.41% 56.26% 46 303434 java.util.ResourceBundle.getObject
13 1.16% 57.42% 38 301739 java.lang.Object.clone
14 1.13% 58.56% 37 303267 ognl.OgnlRuntime.getHandler
15 1.01% 59.57% 33 301953 java.lang.Object.hashCode
Al Sutton wrote:
Do the ideas listed at
http://java.sun.com/developer/technicalArticles/Programming/HPROF.html
shed any light on it?
sajanv007 wrote:
I am using the latest Freemarker version 2.3.13 and Spring 2.5 OGNL
2.7.2
with Javaassist .
Al Sutton wrote:
Replace your freemarker lib with 2.3.13 or later. Prior releases had a
concurrency performance issue.
Al.
sajanv007 wrote:
It is a solaris box and has 16 GB memory and 4 CPU it is high end
server
class machine . Some how I suspect it is the OGNL or Freemarker
rendering
issue .
Jim Kiley wrote:
What kind of server are you using here, how much memory, what CPU --
when
we
are getting to CPU utilization, all of these issues are relevant.
On Thu, Sep 18, 2008 at 3:43 PM, sajanv007 <[EMAIL PROTECTED]>
wrote:
I have tried all the tuning parameters mentioned in the link somehow
CPU
utilization is always 80% ,I observed that it takes tags are
rendered
from
free marker cache but still the cpu 80-90% .
Regards
Sajan
Nils-Helge Garli wrote:
Maybe this can help:
http://struts.apache.org/2.0.11.2/docs/performance-tuning.html
Nils-H
On Thu, Sep 18, 2008 at 9:11 PM, sajanv007 <[EMAIL PROTECTED]>
wrote:
There is huge performance issue and CPU hogging with Struts2 tag ,
this
was
observed while rendering JSP. These are some performance results
obtained
Strut 2 Tag - With all performance tuning applied as per Struts 2
documentation - Freemarker caching etc...
Load Runner Tool
40 users
900 hits per second
10 transaction per second
Results
CPU utilization 90%
Response 3.5 sec
Replaced some of Struts2 Tag , with Custom JSP Tags like (s:label,
s:text,s:textfield,s:hidden,s:param)
40 users
900 hits per second
15 transaction per second
Results
CPU utilization 70%
Response 2.0 sec
Some where down the line Struts 2 tag are very cpu hungry , to
people
to
adopt to strut2 framework cpu utilization should be optimized .
Did anybody come across on how to over come this problem
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[p] 412.258.3346 [m] 412.445.1729
http://www.summa-tech.com
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