Re: Question on forcing cache data to write out

From: Rik van Riel
Date: Mon Apr 19 2004 - 09:54:35 EST

On Mon, 19 Apr 2004, Andrew Morton wrote:
> Phy Prabab <phyprabab@xxxxxxxxx> wrote:

> > quickly, but once the system memory becomes filled,
> > mostly held in "cache", then my NFS performance drops.

> Setting dirty_background_ratio lower might smooth things out.

Hmmm, I wonder if the "system gets slower" thing could be
measured somehow (IO request queue filling up?) and used
as a way to self-tune pdflush a bit ?

I'll take a look ...

"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

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