Re: [PATCH] CFQ scheduler, #2

Rik van Riel
2003-02-15T11:39:36Z

On Sat, 15 Feb 2003, Mike Galbraith wrote:

> >Judging from your log, it ends up stalling kswapd and
> >dramatically increases the number of times that normal
> >processes need to go into the pageout code.
> >
> >If this provides an anti-thrashing benefit, something's
> >wrong with the VM in 2.5 ;)
>
> Which number are you looking at?

pgscan 2751953 5328260 <== ? hmm

kswapd_steal 380282 522126
pageoutrun 1107 1956
allocstall 3472 1238

- we scan far less pages
- kswapd reclaims less pages
- we go into the pageout code less often
- allocations stall more often for a lack of free memory

cheers,

Rik
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