Messages in this thread | | | Date | Fri, 11 May 2007 13:48:52 -0700 | From | Paul Jackson <> | Subject | Re: Conveying memory pressure to userspace? |
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Christoph wrote: > cpusets export a notion of memory pressure to user space. See the cpusets > documentation.
If the special cpuset file 'memory_pressure_enabled' is turned on (echo '1' to it) in the top cpuset, then the special cpuset file 'memory_pressure' that is in all cpusets provides a measure of the rate of recent page allocation requests by tasks in each cpuset that were not easily granted off the free list, requiring more aggressive kernel effort to free up some pages to meet the request.
-- I won't rest till it's the best ... Programmer, Linux Scalability Paul Jackson <pj@sgi.com> 1.925.600.0401 - 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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