Messages in this thread | | | Date | Thu, 8 Sep 2005 14:39:11 +0900 | From | KUROSAWA Takahiro <> | Subject | [PATCH 0/5] SUBCPUSETS: a resource control functionality using CPUSETS |
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The following patchset adds resource control functionality to the CPUSETS code by subdividing a cpuset into smaller pieces (SUBCPUSETS). It is made up from two parts, one for the resource control framework and another for the specific resource controller. Resource controllers can be added by using interfaces provided by the SUBCPUSETS.
For now, it enables us to guarantee the CPU time percentage that tasks attached to the subcpuset consume. The memory resource controller code is coming soon.
The patchset is for linux-2.6.13 and consists of 5 patches: [1/5] Fixes minor problem in the current CPUSETS. [2/5] Implements resource control framework functionality to the CPUSETS (SUBCPUSETS). [3/5] Adds document for SUBCPUSETS. [4/5] Implements the CPU time resource controller. [5/5] Puts the CPU time resource controller into SUBCPUSETS.
The following step might be to useful see how this patchset works:
# mount -t cpuset none /dev/cpuset (mount the cpuset filesystem) # /bin/echo 1 > /dev/cpuset/subcpuset_top (declare that the cpuset is the toplevel directory of subcpusets; you can declare the toplevel directory of subcpusets other than the root cpuset of course) # mkdir /dev/cpuset/sub-a # mkdir /dev/cpuset/sub-b (create subcpuset directories) # /bin/echo 20 > /dev/cpuset/sub-a/cpu_guar (guarantee 20% of the CPU time usage to tasks in the "sub-a" subcpuset) # /bin/echo 80 > /dev/cpuset/sub-b/cpu_guar (guarantee 80% of the CPU time usage to tasks in the "sub-b" subcpuset) # echo $$ > /dev/cpuset/sub-a/tasks (change the cpuset of the shell to the "sub-a" subcpuset) # (while true; do true; done)& (start a CPU consuming process in sub-a subcpuset) # echo $$ > /dev/cpuset/sub-b/tasks (change the cpuset of the shell to the "sub-b" subcpuset) # (while true; do true; done)& (start a CPU consuming process in sub-b subcpuset) # top (see how subcpusets works)
Thanks,
KUROSAWA, Takahiro - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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