Messages in this thread | | | Date | Tue, 17 Nov 1998 21:25:06 +0100 (CET) | From | Rik van Riel <> | Subject | Re: unexpected paging during large file reads in 2.1.127 |
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On Tue, 17 Nov 1998, Stephen C. Tweedie wrote: > On Tue, 17 Nov 1998 07:42:12 +0100 (CET), Rik van Riel > <H.H.vanRiel@phys.uu.nl> said: > > > I meant the page aging that occurs in vmscan.c, where we > > decide on which page to unmap from a program's address > > space. > > For the last time, NO IT DOES NOT. Read the source. Linus removed it. > We do not use page->age AT ALL in vmscan.c in current 2.1 kernels.
I just learned that answering questions from memory is not a good idea when reality changes under your nose :)
I'll try to remember this, really...
> This change improves low memory performance very measurably in all > tests I have tried so far.
OK, I agree with these changes and have seen a bit of improvement on my own (72M) system too.
cheers,
Rik -- slowly getting used to dvorak kbd layout... +-------------------------------------------------------------------+ | Linux memory management tour guide. H.H.vanRiel@phys.uu.nl | | Scouting Vries cubscout leader. http://www.phys.uu.nl/~riel/ | +-------------------------------------------------------------------+
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