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Date:      Sun, 26 Apr 1998 01:22:21 -0700 (PDT)
From:      Tom <tom@sdf.com>
To:        Christoph Toshok <toshok@Hungry.COM>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: threads performance
Message-ID:  <Pine.BSF.3.95q.980426012031.15432B-100000@misery.sdf.com>
In-Reply-To: <m23ef2vzca.fsf@terror.hungry.com>

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On 25 Apr 1998, Christoph Toshok wrote:

> Are there any plans to address the performance of threads in the
> coming weeks/months?  The fact that NSPR can drop 21 seconds off the
> runtime (in this very contrived example) makes me think that there is
> a lot going on in libc_r that is suboptimal, but perhaps there is just
> no other way to implement things so they conform to the posix spec.

  Even mit-pthreads on a 2.2.6 system is faster than libc_r (using the
tests in mysql as a comparison).

  The weird part is that the amount of CPU time accumulated is very
similar, libc_r just takes more real time.  Makes me think that something
in libc_r just sleeps once and while...

Tom


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