Messages in this thread | | | Date | Mon, 22 Nov 2004 14:45:07 -0800 | From | Andrew Morton <> | Subject | Re: deferred rss update instead of sloppy rss |
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Christoph Lameter <clameter@sgi.com> 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 periodically.
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