Date: Sun, 30 Jan 2005 13:37:25 +0000 (UTC) From: Xin LI <delphij@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/kern subr_trap.c Message-ID: <200501301337.j0UDbPi0024786@repoman.freebsd.org>
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delphij 2005-01-30 13:37:25 UTC FreeBSD src repository Modified files: (Branch: RELENG_5) sys/kern subr_trap.c Log: MFC revision 1.277 date: 2004/12/26 07:30:35; author: jeff; state: Exp; lines: +4 -5 - Run sched_userret() after thread_userret(). Before, sched_userret() would lower the priority of the returning thread to a user priority before calling into thread_userret() which would call wakeup() which in turn would cause the returning thread to eventually context switch rather than completing its slice. Allowing this thread to complete its slice first yields a 15% performance improvement in super-smack on my dual opteron with 4BSD. This commit also containes rev. 1.278's style change. I've been running RELENG_5 with this change for two weeks. Revision Changes Path 1.270.2.3 +5 -5 src/sys/kern/subr_trap.c
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