From: Ulrich Drepper <drepper@redhat.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Hu, Boris" <boris.hu@intel.com>,
Jamie Lokier <jamie@shareable.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Split futex global spinlock futex_lock
Date: Mon, 15 Sep 2003 21:48:14 -0700 [thread overview]
Message-ID: <3F66960E.7010703@redhat.com> (raw)
In-Reply-To: <20030916010313.69E1F2C974@lists.samba.org>
Rusty Russell wrote:
> Uli, can we ask you for benchmarks with this change, too?
After these changes the code still works but I couldn't really measure
any differences to the code without the extra attributes. This is on a
4p machine with 10 processes running in concurrently using mutexes and
condvars with 250 threads each. This might be because either the hash
function is good or very bad (i.e., hashes all futexes in the same
bucket or far away). I guess the extra attributes don't hurt.
--
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Ulrich Drepper \ ,-----------------' \ Mountain View, CA 94041 USA
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next prev parent reply other threads:[~2003-09-16 4:49 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-11 7:02 [PATCH] Split futex global spinlock futex_lock Hu, Boris
2003-09-15 15:07 ` Rusty Russell
2003-09-16 4:48 ` Ulrich Drepper [this message]
2003-09-16 11:11 ` Jamie Lokier
2003-09-16 11:04 ` Jamie Lokier
2003-09-17 1:55 ` Rusty Russell
-- strict thread matches above, loose matches on Subject: below --
2003-09-16 7:31 Hu, Boris
2003-09-10 5:23 Hu, Boris
2003-09-10 6:47 ` William Lee Irwin III
2003-09-10 7:36 ` Ulrich Drepper
2003-09-10 9:36 ` Ulrich Drepper
2003-09-10 10:23 ` Jamie Lokier
2003-09-10 11:07 ` Jamie Lokier
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