Date: Mon, 17 Apr 2006 10:16:03 +0200 From: des@des.no (Dag-Erling =?iso-8859-1?Q?Sm=F8rgrav?=) To: Kris Kennaway <kris@obsecurity.org> Cc: smp@FreeBSD.org, current@FreeBSD.org Subject: Re: Anomalous performance increase from mutex profiling Message-ID: <86mzekbosc.fsf@dwp.des.no> In-Reply-To: <20060417051440.GB60956@xor.obsecurity.org> (Kris Kennaway's message of "Mon, 17 Apr 2006 01:14:40 -0400") References: <20060417051440.GB60956@xor.obsecurity.org>
next in thread | previous in thread | raw e-mail | index | archive | help
Kris Kennaway <kris@obsecurity.org> writes: > However, even with CVS sources I found something very odd: when > MUTEX_PROFILING is compiled in but not enabled (which usually still > makes things slower), I see a clear 38% +/- 3% performance *increase* > on this benchmark. Heisenberg strikes! Heisenberg strikes! Heisenberg strikes! You are uncertain. DES --=20 Dag-Erling Sm=F8rgrav - des@des.no
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?86mzekbosc.fsf>