From: Li Zefan <lizf@cn.fujitsu.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH] update 'isolcpus' kernel option
Date: Mon, 03 Nov 2008 16:18:31 +0800 [thread overview]
Message-ID: <490EB3D7.6060605@cn.fujitsu.com> (raw)
cpuset can be used to move a process onto or off an isolated CPU.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
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 1bbcaa8..8a8cb0c 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".
--
1.5.4.rc3
reply other threads:[~2008-11-03 8:21 UTC|newest]
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