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Documentation/kernel-parameters.txt: update 'isolcpus' kernel option

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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>
This commit is contained in:
Li Zefan 2008-11-06 12:53:39 -08:00 committed by Linus Torvalds
parent a684e7d330
commit b225d44e27
1 changed files with 5 additions and 3 deletions
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8
Documentation/kernel-parameters.txt
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@ -995,13 +995,15 @@ and is between 256 and 4096 characters. It is defined in the file
Format: Format:
<cpu number>,...,<cpu number> <cpu number>,...,<cpu number>
or 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 or a mixture
<cpu number>,...,<cpu number>-<cpu number> <cpu number>,...,<cpu number>-<cpu number>
This option can be used to specify one or more CPUs This option can be used to specify one or more CPUs
to isolate from the general SMP balancing and scheduling to isolate from the general SMP balancing and scheduling
algorithms. The only way to move a process onto or off algorithms. You can move a process onto or off an
an "isolated" CPU is via the CPU affinity syscalls. "isolated" CPU via the CPU affinity syscalls or cpuset.
<cpu number> begins at 0 and the maximum value is <cpu number> begins at 0 and the maximum value is
"number of CPUs in system - 1". "number of CPUs in system - 1".