Date: Fri, 18 Nov 2016 15:06:46 +0100 From: =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= <olivier@cochard.me> To: Mateusz Guzik <mjg@freebsd.org> Cc: src-committers <src-committers@freebsd.org>, svn-src-all <svn-src-all@freebsd.org>, svn-src-head <svn-src-head@freebsd.org> Subject: Re: svn commit: r303643 - in head/sys: kern sys Message-ID: <CA%2Bq%2BTcp6QooAxBFA_e%2BkwhonTn9wq3uBS5_AnE18je23JRGUZw@mail.gmail.com> In-Reply-To: <201608012148.u71LmbaA003739@repo.freebsd.org> References: <201608012148.u71LmbaA003739@repo.freebsd.org>
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On Mon, Aug 1, 2016 at 11:48 PM, Mateusz Guzik <mjg@freebsd.org> wrote: > Author: mjg > Date: Mon Aug 1 21:48:37 2016 > New Revision: 303643 > URL: https://svnweb.freebsd.org/changeset/base/303643 > > Log: > Implement trivial backoff for locking primitives. > > > =E2=80=8BI was checking FreeBSD's forwarding speed evolution of year 2016= =E2=80=8B, when I found a unexpected improvement: http://dev.bsdrp.net/benchs/2016.jan-nov.SM5018A-FTN4-Chelsio.png Something append between r303601 (July 31th) and r303818 (August 6th). ae@ advices me to bench this specific commit: http://dev.bsdrp.net/benchs/r303643.png Thanks ! Olivier
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