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Re: commit: ldap/servers/slapd connection.c daemon.c proto-slap.h syncrepl.c

On Tue, Nov 27, 2007 at 05:17:04AM -0800, Howard Chu wrote:
> The -O2 build is faster from about 4 to 24 client threads. From 28 on up, 
> the nonoptimized code is faster at every load level. I was originally using 
> gcc 4.1.2 but I'm seeing the same result now using gcc 4.2.2. Also, slapd 
> is only configured with 8 worker threads in all of these tests. Strange 
> that whatever optimizations the compiler has generated speeds things up for 
> lighter load, but works against it under heavier load.

1stlevel instruction cache thrashing due to function


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