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| author | Li Zefan <lizf@cn.fujitsu.com> | 2008-11-06 12:53:39 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-11-06 15:41:19 -0800 |
| commit | b225d44e27521290faca2e0f9b1a4a8c74dc510a (patch) | |
| tree | 1a1447784e5e8b89352b02a14e408d78e859a8dd /Documentation/kernel-parameters.txt | |
| parent | a684e7d33096892093456dd56a582cfc3bfad648 (diff) | |
| download | lwn-b225d44e27521290faca2e0f9b1a4a8c74dc510a.tar.gz lwn-b225d44e27521290faca2e0f9b1a4a8c74dc510a.zip | |
Documentation/kernel-parameters.txt: update 'isolcpus' kernel option
cpuset can be used to move a process onto or off an isolated CPU.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 1bbcaa8982b6..8a8cb0ccc5f4 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -995,13 +995,15 @@ and is between 256 and 4096 characters. It is defined in the file Format: <cpu number>,...,<cpu number> or - <cpu number>-<cpu number> (must be a positive range in ascending order) + <cpu number>-<cpu number> + (must be a positive range in ascending order) or a mixture <cpu number>,...,<cpu number>-<cpu number> + This option can be used to specify one or more CPUs to isolate from the general SMP balancing and scheduling - algorithms. The only way to move a process onto or off - an "isolated" CPU is via the CPU affinity syscalls. + algorithms. You can move a process onto or off an + "isolated" CPU via the CPU affinity syscalls or cpuset. <cpu number> begins at 0 and the maximum value is "number of CPUs in system - 1". |