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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-06 11:08:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-01-06 11:08:14 -0800 |
| commit | d7a5a18190d6f523b5d795bfd73f83cf13a3a383 (patch) | |
| tree | a7ec0b814d18c78b42403afae048346f45f82adc /Documentation | |
| parent | 4f00b901d4233a78e6ca4d44c8c6fc5d38a3ee9e (diff) | |
| parent | a8760eca6cf60ed303ad494ef45901f63165d2c8 (diff) | |
| download | linux-d7a5a18190d6f523b5d795bfd73f83cf13a3a383.tar.bz2 | |
Merge branch 'x86-tsc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-tsc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Check tsc available/disabled in the delayed init function
x86: Improve TSC calibration using a delayed workqueue
x86: Make tsc=reliable override boot time stability checks
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index d6496fde6180..f3dc951e949f 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2461,12 +2461,13 @@ and is between 256 and 4096 characters. It is defined in the file to facilitate early boot debugging. See also Documentation/trace/events.txt - tsc= Disable clocksource-must-verify flag for TSC. + tsc= Disable clocksource stability checks for TSC. Format: <string> [x86] reliable: mark tsc clocksource as reliable, this - disables clocksource verification at runtime. - Used to enable high-resolution timer mode on older - hardware, and in virtualized environment. + disables clocksource verification at runtime, as well + as the stability checks done at bootup. Used to enable + high-resolution timer mode on older hardware, and in + virtualized environment. [x86] noirqtime: Do not use TSC to do irq accounting. Used to run time disable IRQ_TIME_ACCOUNTING on any platforms where RDTSC is slow and this accounting |