Date: Mon, 20 Nov 2006 23:45:32 +0100 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Attilio Rao <attilio@freebsd.org> Cc: pho@freebsd.org, freebsd-current@freebsd.org, Robert Watson <rwatson@freebsd.org>, freebsd-arch@freebsd.org Subject: Re: sx locks rewriting - needs testers Message-ID: <20061120224532.GA232@garage.freebsd.pl> In-Reply-To: <3bbf2fe10610181518k68356528i154267c0bd1b1a77@mail.gmail.com> References: <3bbf2fe10610181518k68356528i154267c0bd1b1a77@mail.gmail.com>
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[-- Attachment #1 --] On Thu, Oct 19, 2006 at 12:18:16AM +0200, Attilio Rao wrote: > In my P4 branch: //depot/user/attilio/attilio_smpng/... > you can find a sx locks rewriting using the optimized semantic of > rwlocks; in the end this might result in a valuable performance > improvement. I'm using sx(9) locks for Solaris mutexes and rwlocks, as I need locks for ZFS that I can sleep while holding. From my simple tests your locks are stable and ZFS is 10% faster. Nice work. -- Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (FreeBSD) iD8DBQFFYjAMForvXbEpPzQRAlHrAJ4qFZjGYWtc4//lZfylAYr3MUhNaQCbBG98 mIB6AXZ6rdipJyeonJ6bT/g= =4XU7 -----END PGP SIGNATURE-----help
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