Re: [PATCH] vmscan: synchronous lumpy reclaim don't call congestion_wait()

From: KOSAKI Motohiro
Date: Sun Aug 01 2010 - 06:51:15 EST

> > 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 / 4096
= 128kB

128kB scan mean 4096 times shrink_list(). because one shrink_list() scan

> 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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