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| author | avg <avg@FreeBSD.org> | 2011-07-30 20:42:14 +0000 |
|---|---|---|
| committer | avg <avg@FreeBSD.org> | 2011-07-30 20:42:14 +0000 |
| commit | 188ae5a78b50800c9027e1d20528d556c5d30603 (patch) | |
| tree | b831a111dd71a0e0342add031ef47fc01d4a3b69 /tools | |
| parent | 24506a80640cb9f05c1df13618f6228960bc2ebf (diff) | |
| download | FreeBSD-src-188ae5a78b50800c9027e1d20528d556c5d30603.zip FreeBSD-src-188ae5a78b50800c9027e1d20528d556c5d30603.tar.gz | |
update smp related documentation after recent changes
Remove references to machdep.hlt_logical_cpus and
machdep.hlt_cpus sysctls and tunables.
Document machdep.hyperthreading_allowed and
hint.lapic.X.disabled tunables.
Prompted by: ru
Proofreading: bf
Reviewed by: jhb
Approved by: re (kib)
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/tools/sysdoc/tunables.mdoc | 20 |
1 files changed, 4 insertions, 16 deletions
diff --git a/tools/tools/sysdoc/tunables.mdoc b/tools/tools/sysdoc/tunables.mdoc index 429e9dc..35ef9c0 100644 --- a/tools/tools/sysdoc/tunables.mdoc +++ b/tools/tools/sysdoc/tunables.mdoc @@ -1233,24 +1233,12 @@ machdep.disable_mtrrs machdep.guessed_bootdev --- -machdep.hlt_cpus +machdep.hyperthreading_allowed bool -This option will permit the halting -of CPUs. -For instance, to halt CPU 0, -machdep.htl_cpus=1 can be used. -It is possible to halt two CPUs by providing -a comma separated list (i.e: cpu1,cpu2). - ---- -machdep.hlt_logical_cpus -bool - -This keeps the logical CPUs halted in the idle loop. -By default the logical CPUs are halted at startup. -It is also possible to halt any cpu in the idle loop now -using machdep.hlt_cpus. +Setting this tunable to zero disables +the use of additional logical processors +provided by Intel HTT technology. --- machdep.panic_on_nmi |
