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Chirag,
On 5/23/13 11:11 PM, Chirag Dewan wrote:
Chris,
The profiler shows very high CPU utilization in Tomcat threads.
As I said before a lot of time was spent during the
ResponseFacade.setContentType() method call. That doesn't tell the
On 24/05/2013 15:54, Christopher Schultz wrote:
Chirag,
On 5/23/13 11:11 PM, Chirag Dewan wrote:
Chris,
The profiler shows very high CPU utilization in Tomcat threads.
As I said before a lot of time was spent during the
ResponseFacade.setContentType() method call. That doesn't tell
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Chirag,
On 5/23/13 11:11 PM, Chirag Dewan wrote:
As I said before a lot of time was spent during the
ResponseFacade.setContentType() method call. That doesn't tell the
whole story but more or less the high utilization is mainly in the
tomcat
Chris,
Sorry I should have posted the data first. I probably missed the most important
part of a load test. I will do it shortly.
And I am not using Jmeter now,I am using an http client for load test. I am
testing it on Solaris x86 server 64bit JVM. And i have collected the samples
for Tomcat
On 24.05.2013 17:54, Christopher Schultz wrote:
Top reported that Tomcat was taking somewhere between 550-600% CPU.
(This is a 4-core hyperthreaded CPU so I have 8 logical cores. 'ab'
was taking about 100% CPU so I think 600% CPU means it was roughly
pegging 6 of my logical cores. Roughly 30%
to Tomcat 7 under these circumstances.
Thanks.
From: Christopher Schultz ch...@christopherschultz.net
To: Tomcat Users List users@tomcat.apache.org
Sent: Wednesday, 22 May 2013 7:30 PM
Subject: Re: Performance Issue while upgrading from Embedded Tomcat 6 to Tomcat
Users Listusers@tomcat.apache.org
Sent: Wednesday, 22 May 2013 7:30 PM
Subject: Re: Performance Issue while upgrading from Embedded Tomcat 6 to Tomcat
7
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Chirag,
On 5/21/13 11:03 PM, Chirag Dewan wrote:
I was monitoring the CPU utilization
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David,
On 5/23/13 7:40 AM, David kerber wrote:
On 5/23/2013 4:53 AM, Chirag Dewan wrote:
Hi All,
I tested Tomcat 7.0.40 with Solaris x86. It gave better CPU
performance than Tomcat 7.0.30 . It was able to handle 70K
requests at 45% CPU
Chris,
With c=1 it is 70k req/sec and with c=2 it is 35k in both i.e the total req/sec
cannot be scaled beyond 70k. With Tomcat 6 it is 60k in both clients i.e total
of 120k.
I do not expect more than 75k req/sec being served by Tomcat 7,but its the
benchmark set by Tomcat 6 which I can't
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Chirag,
On 5/23/13 1:21 PM, Chirag Dewan wrote:
With c=1 it is 70k req/sec and with c=2 it is 35k in both i.e the
total req/sec cannot be scaled beyond 70k. With Tomcat 6 it is 60k
in both clients i.e total of 120k.
I do not expect more than
To: Tomcat Users List users@tomcat.apache.org
Sent: Friday, 24 May 2013 3:24 AM
Subject: Re: Performance Issue while upgrading from Embedded Tomcat 6 to Tomcat
7
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Chirag,
On 5/23/13 1:21 PM, Chirag Dewan wrote:
With c=1 it is 70k req/sec
On 22/05/2013 04:03, Chirag Dewan wrote:
My Jprofiler stack trace on Solaris is a lot different. As far as
I have observed,for Tomcat 7 the stack Trace leads me to
ResponseFacade.setContentType,which was not the behaviour in
Tomcat 6. Can that be a bottleneck? Or is there something platform
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Chirag,
On 5/21/13 11:03 PM, Chirag Dewan wrote:
I was monitoring the CPU utilization specifically. I can
compromise on 1 less transactions/sec,but 80-90% utilization is
not good.
While it's nice to reduce resource utilization as much as
from Embedded Tomcat 6 to Tomcat
7
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Chirag,
On 5/21/13 11:03 PM, Chirag Dewan wrote:
I was monitoring the CPU utilization specifically. I can
compromise on 1 less transactions/sec,but 80-90% utilization is
not good.
While it's nice
?
Thanks.
From: Chirag Dewan chirag.dewa...@yahoo.in
To: Tomcat Users List users@tomcat.apache.org
Sent: Monday, 20 May 2013 8:08 PM
Subject: Re: Performance Issue while upgrading from Embedded Tomcat 6 to Tomcat
7
I ran my test client on Hello World example
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Chirag,
On 5/20/13 10:38 AM, Chirag Dewan wrote:
I ran my test client on Hello World example servlet on Tomcat
7.0.30. It was 12K req/sec with 80% CPU utilization.
The same test case on tomcat 6.0.18 gave me similar req/sec but
CPU
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Chirag,
On 5/21/13 6:08 AM, Chirag Dewan wrote:
It might be weird but its confusing me a lot.
I used HttpClient 4.2.1 for Tomcat 6.0.18 and I used the same
client with Tomcat 7.0.30,causing the CPU utilization and reduced
trans/sec.
.
From: Christopher Schultz ch...@christopherschultz.net
To: Tomcat Users List users@tomcat.apache.org
Sent: Tuesday, 21 May 2013 9:08 PM
Subject: Re: Performance Issue while upgrading from Embedded Tomcat 6 to Tomcat
7
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From: Chirag Dewan [mailto:chirag.dewa...@yahoo.in]
Subject: Re: Performance Issue while upgrading from Embedded Tomcat 6 to
Tomcat 7
Well I tested a sample html page with Tomcat 6.0.18 and 7.0.30 on Solaris x86
server. The req/sec were almost the same for both, but CPU utilization
Yes. With same JVM on both Solaris and Linux i.e Java 1.6.39. It is 64 bit
version.
Thanks.
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throughput?
Thanks.
From: Chirag Dewan chirag.dewa...@yahoo.in
To: users@tomcat.apache.org users@tomcat.apache.org; ma...@apache.org
ma...@apache.org
Sent: Friday, 17 May 2013 6:30 PM
Subject: Re: Performance Issue while upgrading from Embedded Tomcat 6
On 20/05/2013 06:59, Chirag Dewan wrote:
Hi,
I have profiled the application using JProfiler,and it seems to me
that its my servlet which is taking the majority of time.
Though the time is in mili seconds,but I guess since the servlet is
code is same as with Tomcat 6.0.18 is it the
: Monday, 20 May 2013 1:48 PM
Subject: Re: Performance Issue while upgrading from Embedded Tomcat 6 to Tomcat
7
On 20/05/2013 06:59, Chirag Dewan wrote:
Hi,
I have profiled the application using JProfiler,and it seems to me
that its my servlet which is taking the majority of time.
Though
Hi All,
I have upgraded my application from Embedded Tomcat 6 to Embedded Tomcat 7.
With Tomcat 6, I was getting around 7 Transactions per sec with a simple
HTTP service,which sets the HTTPResponse and returns it.
Now with Tomcat 7,I am getting 54000 transactions per sec. Going through
On 17/05/2013 11:51, Chirag Dewan wrote:
Hi All,
I have upgraded my application from Embedded Tomcat 6 to Embedded
Tomcat 7. With Tomcat 6, I was getting around 7 Transactions per
sec with a simple HTTP service,which sets the HTTPResponse and
returns it.
Now with Tomcat 7,I am
I am comparing tomcat 6.0.18 with tomcat 7.0.30.
Would adding NIO or APR connector help? Currently I am using default(BIO)
connector.
Thanks.
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Another important factor is the CPU utilization. Earlier for same trans/sec it
was 40% now its close to 80%.
And yes,the OS,JVM and memory setting are unchanged.
Thanks.
Sent from Yahoo! Mail on Android
On 17/05/2013 13:29, Chirag Dewan wrote:
Another important factor is the CPU utilization. Earlier for same trans/sec
it was 40% now its close to 80%.
I'd upgrade to the latest 7.0.39 but otherwise, definitely time for a
profiler.
If you want raw performance on kept-alive connections then BIO
I am running it on Solaris x86 server. I haven't even changed my code much.
Let me add a profiler,will post the results.
Thanks.
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