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Mel Gorman
ed4a6d7f06
Add a per-node sysfs file called compact. When the file is written to, each zone in that node is compacted. The intention that this would be used by something like a job scheduler in a batch system before a job starts so that the job can allocate the maximum number of hugepages without significant start-up cost. Signed-off-by: Mel Gorman <[email protected]> Acked-by: Rik van Riel <[email protected]> Reviewed-by: KOSAKI Motohiro <[email protected]> Reviewed-by: Christoph Lameter <[email protected]> Reviewed-by: Minchan Kim <[email protected]> Reviewed-by: KAMEZAWA Hiroyuki <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
8 lines
299 B
Plaintext
8 lines
299 B
Plaintext
What: /sys/devices/system/node/nodeX/compact
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Date: February 2010
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Contact: Mel Gorman <[email protected]>
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Description:
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When this file is written to, all memory within that node
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will be compacted. When it completes, memory will be freed
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into blocks which have as many contiguous pages as possible
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