From owner-svn-src-all@freebsd.org Mon Sep 5 17:44:57 2016 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 8F86DB96567; Mon, 5 Sep 2016 17:44:57 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from mail.baldwin.cx (bigwig.baldwin.cx [96.47.65.170]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 66B48DD2; Mon, 5 Sep 2016 17:44:55 +0000 (UTC) (envelope-from jhb@freebsd.org) Received: from ralph.baldwin.cx (c-73-231-226-104.hsd1.ca.comcast.net [73.231.226.104]) by mail.baldwin.cx (Postfix) with ESMTPSA id 2C1ED10AF43; Mon, 5 Sep 2016 13:44:48 -0400 (EDT) From: John Baldwin To: Mark Johnston Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r305368 - head/sys/kern Date: Mon, 05 Sep 2016 10:30:24 -0700 Message-ID: <2134943.hUK9aHv09Y@ralph.baldwin.cx> User-Agent: KMail/4.14.10 (FreeBSD/11.0-PRERELEASE; KDE/4.14.10; amd64; ; ) In-Reply-To: <201609040029.u840Tn5D019584@repo.freebsd.org> References: <201609040029.u840Tn5D019584@repo.freebsd.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.4.3 (mail.baldwin.cx); Mon, 05 Sep 2016 13:44:48 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.99.2 at mail.baldwin.cx X-Virus-Status: Clean X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Sep 2016 17:44:57 -0000 On Sunday, September 04, 2016 12:29:49 AM Mark Johnston wrote: > Author: markj > Date: Sun Sep 4 00:29:48 2016 > New Revision: 305368 > URL: https://svnweb.freebsd.org/changeset/base/305368 > > Log: > Micro-optimize sleepq_signal(). > > Lift a comparison out of the loop that finds the highest-priority thread > on the queue. > > MFC after: 1 week Could this safely use TAILQ_FOREACH_FROM? -- John Baldwin