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| author | scottl <scottl@FreeBSD.org> | 2004-07-18 15:59:03 +0000 |
|---|---|---|
| committer | scottl <scottl@FreeBSD.org> | 2004-07-18 15:59:03 +0000 |
| commit | 7ad60316cd2a6fab33bff1ecd701c1d696895b96 (patch) | |
| tree | ac22ab2a20ec2a247773c0b4fbd9fd368f767eb2 /sys/amd64 | |
| parent | cf328c10576453a3e63ec1ff22f92f1b352db615 (diff) | |
| download | FreeBSD-src-7ad60316cd2a6fab33bff1ecd701c1d696895b96.zip FreeBSD-src-7ad60316cd2a6fab33bff1ecd701c1d696895b96.tar.gz | |
Enable ADAPTIVE_MUTEXES by default by changing the sense of the option to
NO_ADAPTIVE_MUTEXES. This option has been enabled by default on amd64 for
quite some time, and has been extensively tested on i386 and sparc64. It
shows measurable performance gains in many circumstances, and few negative
effects. It would be nice in t he future if adaptive mutexes actually went
to sleep after a certain amount of spinning, but that will require quite a
bit more testing.
Diffstat (limited to 'sys/amd64')
| -rw-r--r-- | sys/amd64/conf/GENERIC | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/sys/amd64/conf/GENERIC b/sys/amd64/conf/GENERIC index 4cd44a4..87ca19f 100644 --- a/sys/amd64/conf/GENERIC +++ b/sys/amd64/conf/GENERIC @@ -28,7 +28,6 @@ ident GENERIC makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols options SCHED_ULE # ULE scheduler -options ADAPTIVE_MUTEXES # mutexes first spin lock, then sleep options INET # InterNETworking options INET6 # IPv6 communications protocols options FFS # Berkeley Fast Filesystem |
