From owner-cvs-src@FreeBSD.ORG Wed Mar 12 06:31:07 2008 Return-Path: Delivered-To: cvs-src@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 607A01065683; Wed, 12 Mar 2008 06:31:07 +0000 (UTC) (envelope-from jeff@FreeBSD.org) Received: from repoman.freebsd.org (repoman.freebsd.org [IPv6:2001:4f8:fff6::29]) by mx1.freebsd.org (Postfix) with ESMTP id 43E748FC29; Wed, 12 Mar 2008 06:31:07 +0000 (UTC) (envelope-from jeff@FreeBSD.org) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.14.1/8.14.1) with ESMTP id m2C6V7kx009347; Wed, 12 Mar 2008 06:31:07 GMT (envelope-from jeff@repoman.freebsd.org) Received: (from jeff@localhost) by repoman.freebsd.org (8.14.1/8.14.1/Submit) id m2C6V7LP009346; Wed, 12 Mar 2008 06:31:07 GMT (envelope-from jeff) Message-Id: <200803120631.m2C6V7LP009346@repoman.freebsd.org> From: Jeff Roberson Date: Wed, 12 Mar 2008 06:31:07 +0000 (UTC) To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org X-FreeBSD-CVS-Branch: HEAD Cc: Subject: cvs commit: src/sys/kern kern_condvar.c kern_sx.c kern_synch.c kern_thread.c kern_timeout.c sched_4bsd.c sched_ule.c subr_sleepqueue.c src/sys/sys condvar.h proc.h sched.h sleepqueue.h src/sys/vm vm_glue.c vm_meter.c X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 12 Mar 2008 06:31:07 -0000 jeff 2008-03-12 06:31:07 UTC FreeBSD src repository Modified files: sys/kern kern_condvar.c kern_sx.c kern_synch.c kern_thread.c kern_timeout.c sched_4bsd.c sched_ule.c subr_sleepqueue.c sys/sys condvar.h proc.h sched.h sleepqueue.h sys/vm vm_glue.c vm_meter.c Log: - Pass the priority argument from *sleep() into sleepq and down into sched_sleep(). This removes extra thread_lock() acquisition and allows the scheduler to decide what to do with the static boost. - Change the priority arguments to cv_* to match sleepq/msleep/etc. where 0 means no priority change. Catch -1 in cv_broadcastpri() and convert it to 0 for now. - Set a flag when sleeping in a way that is compatible with swapping since direct priority comparisons are meaningless now. - Add a sysctl to ule, kern.sched.static_boost, that defaults to on which controls the boost behavior. Turning it off gives better performance in some workloads but needs more investigation. - While we're modifying sleepq, change signal and broadcast to both return with the lock held as the lock was held on enter. Reviewed by: jhb, peter Revision Changes Path 1.63 +14 -9 src/sys/kern/kern_condvar.c 1.59 +10 -9 src/sys/kern/kern_sx.c 1.307 +10 -19 src/sys/kern/kern_synch.c 1.268 +2 -2 src/sys/kern/kern_thread.c 1.110 +1 -1 src/sys/kern/kern_timeout.c 1.116 +6 -1 src/sys/kern/sched_4bsd.c 1.231 +9 -1 src/sys/kern/sched_ule.c 1.46 +23 -27 src/sys/kern/subr_sleepqueue.c 1.15 +1 -1 src/sys/sys/condvar.h 1.505 +2 -2 src/sys/sys/proc.h 1.36 +1 -1 src/sys/sys/sched.h 1.13 +4 -4 src/sys/sys/sleepqueue.h 1.227 +1 -2 src/sys/vm/vm_glue.c 1.97 +6 -16 src/sys/vm/vm_meter.c