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Posted to announcements@jakarta.apache.org by Remy Maucherat <re...@apache.org> on 2002/07/08 22:40:32 UTC
[ANNOUNCEMENT] Tomcat 4.1.7 Beta
Tomcat 4.1.7 Beta has been released. It includes major bugfixes and
improvements over the previous Tomcat 4.1.3 Beta (please refer to the
release notes for the complete list).
Relese notes:
http://jakarta.apache.org/builds/jakarta-tomcat-4.0/release/v4.1.7-beta/RELEASE-NOTES
Downloads (source and binaries):
http://jakarta.apache.org/builds/jakarta-tomcat-4.0/release/v4.1.7-beta/
Remy
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Re: [ANNOUNCEMENT] Tomcat 4.1.7 Beta
Posted by peter lin <pe...@labs.gte.com>.
I didn't expect that kind of difference either, but I ran the tests
several times yesterday with the same results. I'm running the same
tests again today, but our LAN is on the fritz so I'm getting
inconsistent results. oh well.
thanks for the explanation on the relevant improvements in jdk1.4 which
contribute to the performance enhancement.
peter
Remy Maucherat wrote:
>
> peter lin wrote:
> > Some interesting performance results. I found some time to test my
> > webapp a bit more with 4.1.7 and discovered a performance difference.
> >
> > when I benchmark my webapp using 4.1.7 w/ jdk131 on solaris 8 I get an
> > average response time of 490ms, and a low number of 460ms. when I swith
> > to jdk141, I see a 10-20% performance boost. the only thing different
> > between the two tests is the change in jdk. It's pretty dramatic
> > considering the fastest response time using jdk141 is 380ms.
>
> I can confirm that JDK 1.4 provides better performance with Tomcat 4.1.
>
> JDK 1.4 improves quite dramatically b2c and c2b conversion (it uses new
> implementations from the nio package transparently). It may also improve
> networking performance.
>
> Those two items are the biggest hotspots of Coyote (and can't be
> improved much), so that's why you get a performance boost.
>
> BTW, it's a pretty impressive gain for a real world application. I
> thought you would only see that kind of gain with synthetic benchmarks.
>
> Remy
>
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Re: [ANNOUNCEMENT] Tomcat 4.1.7 Beta
Posted by Remy Maucherat <re...@apache.org>.
peter lin wrote:
> Some interesting performance results. I found some time to test my
> webapp a bit more with 4.1.7 and discovered a performance difference.
>
> when I benchmark my webapp using 4.1.7 w/ jdk131 on solaris 8 I get an
> average response time of 490ms, and a low number of 460ms. when I swith
> to jdk141, I see a 10-20% performance boost. the only thing different
> between the two tests is the change in jdk. It's pretty dramatic
> considering the fastest response time using jdk141 is 380ms.
I can confirm that JDK 1.4 provides better performance with Tomcat 4.1.
JDK 1.4 improves quite dramatically b2c and c2b conversion (it uses new
implementations from the nio package transparently). It may also improve
networking performance.
Those two items are the biggest hotspots of Coyote (and can't be
improved much), so that's why you get a performance boost.
BTW, it's a pretty impressive gain for a real world application. I
thought you would only see that kind of gain with synthetic benchmarks.
Remy
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Re: [ANNOUNCEMENT] Tomcat 4.1.7 Beta
Posted by peter lin <pe...@labs.gte.com>.
Some interesting performance results. I found some time to test my
webapp a bit more with 4.1.7 and discovered a performance difference.
when I benchmark my webapp using 4.1.7 w/ jdk131 on solaris 8 I get an
average response time of 490ms, and a low number of 460ms. when I swith
to jdk141, I see a 10-20% performance boost. the only thing different
between the two tests is the change in jdk. It's pretty dramatic
considering the fastest response time using jdk141 is 380ms.
my webapp uses jstl tags heavily.
peter
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Re: [ANNOUNCEMENT] Tomcat 4.1.7 Beta
Posted by Henri Gomez <nr...@betaversion.org>.
RPM are currently in works, stay tuned :)
> Tomcat 4.1.7 Beta has been released. It includes major bugfixes and
> improvements over the previous Tomcat 4.1.3 Beta (please refer to the
> release notes for the complete list).
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