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| author | Alexander Motin <mav@FreeBSD.org> | 2012-08-03 15:19:59 +0000 |
|---|---|---|
| committer | Alexander Motin <mav@FreeBSD.org> | 2012-08-03 15:19:59 +0000 |
| commit | b19ee1c6ef2dd65d93bfe81ab906f6a42d0f0cdb (patch) | |
| tree | 4f35121adfcc0f946e256bea190e35e8548a117f /README | |
| parent | 71ee4ef0d92c83132de99f89cd4e77f2ee5fa12a (diff) | |
| download | src-b19ee1c6ef2dd65d93bfe81ab906f6a42d0f0cdb.tar.gz src-b19ee1c6ef2dd65d93bfe81ab906f6a42d0f0cdb.zip | |
Microoptimize LAPIC timer routines to avoid reading from hardware during
programming using earlier cached values. This makes respective routines to
disappear from PMC top and reduces total number of active CPU cycles on idle
24-core system by 10%.
Notes
Notes:
svn path=/head/; revision=239013
Diffstat (limited to 'README')
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