Re: deferred rss update instead of sloppy rss

From: Andrew Morton <>
Date: 2004-11-23 09:45:07
Christoph Lameter <> wrote:
> > just to prevent transient gross inaccuracies.  For some value of "16".
> The page fault code only increments rss. For larger transactions that
> increase / decrease rss significantly the page_table_lock is taken and
> mm->rss is updated directly. So no
> gross inaccuracies can result.

Sure.  Take a million successive pagefaults and mm->rss is grossly
inaccurate.  Hence my suggestion that it be spilled into mm->rss

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Received on Mon Nov 22 21:07:53 2004

This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:32 EST