Date: Fri, 25 May 2012 16:46:13 +0200 From: Marius Strobl <marius@alchemy.franken.de> To: sparc64@freebsd.org Subject: [marius@freebsd.org: svn commit: r235992 - stable/9/sys/sparc64/conf] Message-ID: <20120525144613.GA12138@alchemy.franken.de>
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FYI, if you are using stable/9 past r230892 or head past r230662,
i.e. have sys/sparc64/sparc64/support.S CVS rev. 1.39.2.2/1.40,
you should turn on PREEMPTION as below by now.
Marius
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From: Marius Strobl <marius@freebsd.org>
Date: Fri, 25 May 2012 14:40:56 +0000 (UTC)
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Subject: svn commit: r235992 - stable/9/sys/sparc64/conf
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Author: marius
Date: Fri May 25 14:40:56 2012
New Revision: 235992
URL: http://svn.freebsd.org/changeset/base/235992
Log:
MFC: r234348
Turn on PREEMPTION by default. After fixing several bugs over time, the
last show-stopper keeping PREEMPTION from being usable on sparc64 should
have been dealt with in r230662 (MFC'ed to stable/9 in r230662).
At least on 2-way systems, PREEMPTION causes a little bit of a degradation
in worldstone performance. However, FreeBSD seems to have started building
up regressions in !PREEMPTION cases so sparc64 better should not be an
oddball in this regard.
Modified:
stable/9/sys/sparc64/conf/GENERIC
Directory Properties:
stable/9/sys/ (props changed)
stable/9/sys/amd64/include/xen/ (props changed)
stable/9/sys/boot/ (props changed)
stable/9/sys/boot/i386/efi/ (props changed)
stable/9/sys/boot/ia64/efi/ (props changed)
stable/9/sys/boot/ia64/ski/ (props changed)
stable/9/sys/boot/powerpc/boot1.chrp/ (props changed)
stable/9/sys/boot/powerpc/ofw/ (props changed)
stable/9/sys/cddl/contrib/opensolaris/ (props changed)
stable/9/sys/conf/ (props changed)
stable/9/sys/contrib/dev/acpica/ (props changed)
stable/9/sys/contrib/octeon-sdk/ (props changed)
stable/9/sys/contrib/pf/ (props changed)
stable/9/sys/contrib/x86emu/ (props changed)
stable/9/sys/dev/ (props changed)
stable/9/sys/dev/e1000/ (props changed)
stable/9/sys/dev/ixgbe/ (props changed)
stable/9/sys/fs/ (props changed)
stable/9/sys/fs/ntfs/ (props changed)
stable/9/sys/modules/ (props changed)
Modified: stable/9/sys/sparc64/conf/GENERIC
==============================================================================
--- stable/9/sys/sparc64/conf/GENERIC Fri May 25 14:11:02 2012 (r235991)
+++ stable/9/sys/sparc64/conf/GENERIC Fri May 25 14:40:56 2012 (r235992)
@@ -27,7 +27,7 @@ makeoptions DEBUG=-g # Build kernel wit
# At this time all platforms are supported, as-is.
options SCHED_ULE # ULE scheduler
-#options PREEMPTION # Enable kernel thread preemption
+options PREEMPTION # Enable kernel thread preemption
options INET # InterNETworking
options INET6 # IPv6 communications protocols
options SCTP # Stream Control Transmission Protocol
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