Re: [PATCH] vma limited swapin readahead

From: Stephen C. Tweedie (
Date: Thu Feb 01 2001 - 09:36:06 EST


On Thu, Feb 01, 2001 at 08:53:33AM -0200, Marcelo Tosatti wrote:
> On Thu, 1 Feb 2001, Stephen C. Tweedie wrote:
> If we're under free memory shortage, "unlucky" readaheads will be harmful.

I know, it's a balancing act. But given that even one successful
readahead per read will halve the number of swapin seeks, the
performance loss due to the extra scavenging has got to be bad to
outweigh the benefit.

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This archive was generated by hypermail 2b29 : Wed Feb 07 2001 - 21:00:12 EST