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authorLi Zefan <lizf@cn.fujitsu.com>2008-11-06 12:53:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-11-06 15:41:19 -0800
commitb225d44e27521290faca2e0f9b1a4a8c74dc510a (patch)
tree1a1447784e5e8b89352b02a14e408d78e859a8dd
parenta684e7d33096892093456dd56a582cfc3bfad648 (diff)
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>
-rw-r--r--Documentation/kernel-parameters.txt8
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".