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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