Re: [with-PATCH-really] highmem deadlock removal, balancing & cleanup

From: Rik van Riel (riel@conectiva.com.br)
Date: Fri May 25 2001 - 17:35:58 EST


On Fri, 25 May 2001, Linus Torvalds wrote:
> On Fri, 25 May 2001, Rik van Riel wrote:
> >
> > OK, shoot me. Here it is again, this time _with_ patch...
>
> I'm not going to apply this as long as it plays experimental
> games with "shrink_icache()" and friends. I haven't seen anybody
> comment on the performance on this, and I can well imagine that
> it would potentially shrink the dcache too aggressively when
> there are lots of inactive-dirty pages around, where
> page_launder is the right thing to do, and shrinking
> icache/dcache might not be.

Your analysis exactly describes what happens in your current
code, though I have to admit that my patch doesn't change it.

Without the patch my workstation (with ~180MB RAM) usually has
between 50 and 80MB of inode/dentry cache and real usable stuff
gets swapped out.

Either you can go make Linux 2.4 usable again for normal people,
or you can go buy us all a gig of ram.

regards,

Rik

--
Linux MM bugzilla: http://linux-mm.org/bugzilla.shtml

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/

- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Thu May 31 2001 - 21:00:26 EST