Messages in this thread | | | From | KOSAKI Motohiro <> | Subject | Re: [PATCH] vmscan: synchronous lumpy reclaim don't call congestion_wait() | Date | Sun, 1 Aug 2010 19:51:05 +0900 (JST) |
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> > If the system 512MB memory, DEF_PRIORITY mean 128kB scan and It takes 4096 > > shrink_page_list() calls to scan 128kB (i.e. 128kB/32=4096) memory. > > Err you must forgot the page size.
page size? DEF_PRIORITY is 12.
512MB >> DEF_PRIORITY = 512MB / 4096 = 128kB
128kB scan mean 4096 times shrink_list(). because one shrink_list() scan SWAP_CLUSTER_MAX (i.e. 32).
> > 128kB means 128kB/4kB=32 pages which fit exactly into one > SWAP_CLUSTER_MAX batch. The shrink_page_list() call times > has nothing to do DEF_PRIORITY.
Umm.. I haven't catch this mention.
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