Date: Tue, 16 Jan 2007 10:30:10 -0800 From: Julian Elischer <julian@elischer.org> To: Attilio Rao <attilio@freebsd.org> Cc: Pawel Jakub Dawidek <pjd@freebsd.org>, Kip Macy <kip.macy@gmail.com>, Suleiman Souhlal <ssouhlal@freebsd.org>, freebsd-current@freebsd.org, freebsd-arch@freebsd.org Subject: Re: [PATCH] Mantaining turnstile aligned to 128 bytes in i386 CPUs Message-ID: <45AD19B2.6010806@elischer.org> In-Reply-To: <3bbf2fe10701160851r79b04464m2cbdbb7f644b22b6@mail.gmail.com> References: <3bbf2fe10607250813w8ff9e34pc505bf290e71758@mail.gmail.com> <3bbf2fe10607250814m1a476f09p2d962dedc0c99be1@mail.gmail.com> <200607251232.51230.jhb@freebsd.org> <3bbf2fe10607251004wf94e238xb5ea7a31c973817f@mail.gmail.com> <3bbf2fe10607261127p3f01a6c3w80027754f7d4e594@mail.gmail.com> <3bbf2fe10607281004o6727e976h19ee7e054876f914@mail.gmail.com> <3bbf2fe10701160851r79b04464m2cbdbb7f644b22b6@mail.gmail.com>
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Attilio Rao wrote: > 2006/7/28, Attilio Rao <attilio@freebsd.org>: >> >> After some thinking, I think it's better using init/fini methods >> (since they hide the sizeof(struct turnstile) with size parameter). >> >> Feedbacks and comments are welcome: >> http://users.gufi.org/~rookie/works/patches/uma_sync_init.diff > > [CC'ed all the interested people] > > Even if a long time is passed I did some benchmarks based on ebizzy tool. > This program claims to reproduce a real httpd server behaviour and is > used into the Linux world for benchmarks, AFAIK. > I think that results of the comparison on this patch is very > interesting, and I think it worths a commit :) > I think that results can be even better on a Xeon machine (I had no > chance to reproduce this on some of these). > (Results taken in consideration have been measured after some starts, > in order to minimize caching differences). > > The patch: > http://users.gufi.org/~rookie/works/patches/ts-sq/ts-sq.diff > > The benchmark results: > http://users.gufi.org/~rookie/works/patches/ts-sq/ts-sq.benchmark those are very big differences! what does the benchmark actually measure? > > The kernel options file: > http://users.gufi.org/~rookie/works/patches/ts-sq/CURRENT > > For any information, comment, etc. please feel free to contact me. > > Attilio > >
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