> > This patch (relative to 2.1.89) helps systems with uncacheable (->
> > slow) memory. It adds one config time switch (sorry for strange
> > placement) and command line option.
> Very nice, but then we'd want to:
> - age buffer and cache pages
> - swap user pages on the first whim (when there's some
> fastswap left!)
I'm looking forward to see it.
> On a sidenote:
> Is it available from your homepage or should I add it to
> the mm-patch page?
Add it to mm-patch page. I'm currently ill, so I'm mostly online, only
reading / sending mail.
Question: While playing with mm subsystem, machine frequenly falls
into state where kswapd is active 99% of time, and machine is doing
anything usefull that remaining 1% of time. I'm sure I already saw this
behaviour on some older kernel. (May hacks are needed to do it on
2.1.89). I do not know how it is caused, but:
Pages' age must be 0 in order for page being swapped out. Ok, but what
if there are no pages with age 0? Should not page with lowest age
found be swapped out?
-- I'm really firstname.lastname@example.org. Pavel Look at http://atrey.karlin.mff.cuni.cz/~pavel/ ;-).
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