On Thu, 26 Apr 2001, Mike Galbraith wrote:
> 1. pagecache is becoming swapcache and must be aged before anything is
> done. Meanwhile we're calling refill_inactive_scan() so fast that noone
> has a chance to touch a page. Age becomes a simple counter.. I think.
> When you hit a big surge, swap pages are at the back of all lists, so all
> of your valuable cache gets reclaimed before we write even one swap page.
Does the patch I sent to linux-mm@kvack.org last night help in
this ?
I found that the way refill_inactive_scan() and swap_out() are being
called from the main loop in refill_inactive() aren't equal and have
fixed that in a way which (IMHO) also beautifies the code a bit.
(and makes sure background aging doesn't get out of hand with a few
simple checks)
regards,
Rik
-- Virtual memory is like a game you can't win; However, without VM there's truly nothing to lose...http://www.surriel.com/ http://www.conectiva.com/ http://distro.conectiva.com.br/
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This archive was generated by hypermail 2b29 : Mon Apr 30 2001 - 21:00:16 EST