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From:athompso Date:June 28 1999 4:04pm
Subject:Re: glibc 2.1 performance
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I can certainly attest to some weirdness being present in glibc2.1.  I
will be upgrading my RH6.0 MySQL server to dual-CPU tomorrow (Tuesday
Jun.29) so I should be able to find out fairly quickly if I encounter a
bottleneck.

I've only had MySQL running on the box for two days; it was on an
OpenBSD platform last week.  I never ran benchmarks there - the box was
too slow to bother :-)

-Adam Thompson
 <athompso@stripped>

Tom Cunningham wrote:
> The old machine (the one that performs better under heavy hits) is running
> Linux 2.2.5. The new machine is running Linux 2.2.10ac4. The bug seems to
> be in the glibc version, because we've tried 2.2.5 on the new machine, and
> it didn't help performance - the old machine still outperformed the new
> one even though they were both running the same kernel (2.2.5).
> 
> The Usenet post also seemed to point a finger at glibc2.1 :
> 
>
> http://x23.deja.com/getdoc.xp?AN=474851996&search=thread&CONTEXT=930262832.17345
> 41401&HIT_CONTEXT=930262265.1662714038&HIT_NUM=1&hitnum=1
> Subject : performance bug in glibc2.1 linux 2.2?
> Date: 1999/05/06
> 
> Is anyone else that is using Red Hat 6.0 willing to check this out, or has
> anyone seen this happen? I really don't want to retreat to an earlier
> glibc library if I don't have to.


-- 
Adam Thompson, MCNE, MCSE, CWT, A+
Vice-President / Chief Technology Officer, Commerce Design Inc.
<athompso@stripped>
tel: (204) 942-1648, fax: (204) 989-8080, cell: (204) 782-6198
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Thread
Persistent connections to db?Tom Cunningham23 Jun
  • Re: Persistent connections to db?Paul DuBois23 Jun
    • Re: Persistent connections to db?Tom Cunningham23 Jun
      • Re: Persistent connections to db?Daniel Koch23 Jun
        • DBD::mysql fails on two tests?Tom Cunningham24 Jun
          • glibc 2.1 performanceTom Cunningham25 Jun
            • Re: glibc 2.1 performance(Paul D. Smith)25 Jun
              • Re: glibc 2.1 performanceTom Cunningham25 Jun
                • Re: glibc 2.1 performanceathompso28 Jun
    • Re: Persistent connections to db?ed23 Jun
Re: glibc 2.1 performanceAndrew Dunstan25 Jun