On Wed, 26 Apr 2000, Stephen C. Tweedie wrote:
> On Tue, Apr 25, 2000 at 12:06:58PM -0700, Simon Kirby wrote:
> >
> > Sorry, I made a mistake there while writing..I was going to give an
> > example and wrote 60 seconds, but I didn't actually mean to limit
> > anything to 60 seconds. I just meant to make a really big global lru
> > that contains everything including page cache and swap. :)
>
> Doesn't work. If you do that, a "find / | grep ..." swaps out
> everything in your entire system.
>
> Getting the VM to respond properly in a way which doesn't freak out
> in the mass-filescan case is non-trivial. Simple LRU over all pages
> simply doesn't cut it.
It seems to work pretty well, because pages "belonging to" processes
are mapped into the address space of each process and will never go
through swap_out() if shrink_mmap() will succeed.
regards,
Rik
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This archive was generated by hypermail 2b29 : Sun Apr 30 2000 - 21:00:11 EST