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Re: OL2.3 vs OL2.4 perf issues

--On Tuesday, July 28, 2009 11:23 PM +0200 Hallvard B Furuseth <h.b.furuseth@usit.uio.no> wrote:

Quanah Gibson-Mount writes:
OL 2.4 with howard and hallvard's patches: 17,086 auths/second.

I'm tempted to backport the patches to 2.3 so we can compare with
what 2.3 could have been:-)

That still leaves us over 4,500 auths/second (or 9000 searches/second)
slower than RE2.3. I.e., 21.5% slower.  Which is quite a substantial gap.

Maybe --disable-debug is a place to fetch some speed.  If it makes a
enough difference from loglevel 0, it might be an idea to disable _some_
loglevels and some asserts in the default build.  After we've done
something about that broken log system of course - IIRC today one needs
to turn on massive logging to get certain error messages.

I'm running with loglevel none, which logs almost nothing. I do that so syslog doesn't cause a perf hit. I don't think it specifically will make much difference in the auth rate I'm getting.



Quanah Gibson-Mount
Principal Software Engineer
Zimbra, Inc
Zimbra ::  the leader in open source messaging and collaboration