[horde] Performance / Kernel 2.4 / Kernel 2.6
Kevin M. Myer
kevin_myer at iu13.org
Thu Aug 11 05:08:32 PDT 2005
You made two changes:
1) Updating Horde2/IMP3 -> Horde3/IMP4,
2) Updating RHEL 3 -> RHEL 4, which updates far more than just the kernel
What makes you think that its a kernel 2.4/2.6 issue?
Quoting Anant S Athavale <asa at isac.ernet.in>:
> We were running Horde 2 / IMP 3 on AMD 64 bit dual processor
> (Opteron) system.
> We were finding the performance/speed is excellent.
> We are currently running RHEL 3.0 Update 5 AS on that system.
> After migrating to Horde 3/IMP 4 and other applications, CPU consumption goes
> even up 95% at peak hours and the response to the users is poor during that
> We tried performance tuning of HTTPD, PGSQL, CYRUS-IMAP etc... but the poor
> response time continues during that peak hours.
> Can anybody comment on performance/response time improvement if upgraded to
> Kernel Ver 2.6 (ie. RHEL 4 )? We are planning to upgrade to RHEL 4.
> If any of
> you has any feedback on that, please share with me.
> Anant Athavale,
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Kevin M. Myer
Senior Systems Administrator
Lancaster-Lebanon Intermediate Unit 13 http://www.iu13.org
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