cvs commit: src/lib/libthr/thread thr_mutex.c
src/lib/libkse/thread thr_mutex.c src/include pthread.h
kris at FreeBSD.org
Tue Oct 30 10:54:49 PDT 2007
David Xu wrote:
> Kris Kennaway wrote:
>>> My last commit improves mysql select-smack benchmark on 4-core xeon from
>>> 48000 queries/s to 70000 queries/s, so my work is alternative way
>> No, that is an orthogonal issue that (after measurement) does not
>> solve the same problem that is addressed by this change. I'd be happy
>> to discuss it with you in more detail if you are interested. We could
>> also discuss the fact that super-smack is a questionable target to be
>> optimizing because the main performance problems seem to be from a
>> very poor benchmark design.
>> I claim that real-world applications do not commonly do I/O in units
>> of 1 byte :)
> I'd rather to believe it is scheduling problem, spin loops does not help
> it, but sched_yield() loops does help it a lot.
Sure, maybe. It's still a completely orthogonal problem.
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