Subject: Re: Change in default vm_dirty_ratio
From: Peter Zijlstra <peterz@infradead.org>
To: Mark Lord <lkml@rtr.ca>
Cc: Andrew Morton <akpm@linux-foundation.org>, davej@redhat.com,
       tim.c.chen@linux.intel.com, linux-kernel@vger.kernel.org,
       torvalds@linux-foundation.org
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Date: Thu, 21 Jun 2007 18:55:53 +0200
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On Thu, 2007-06-21 at 12:54 -0400, Mark Lord wrote:
> Andrew Morton wrote:
> >
> > What do we actually want the kernel to *do*?  Stated in terms of "when the
> > dirty memory state is A, do B" and "when userspace does C, the kernel should
> > do D".
> 
> When we have dirty pages awaiting write-out,
> and the write-out device is completely idle,
> then we should be writing them out.
> 
> That's the easy bit taken care of.  ;)

Unless we're in laptop mode, in that case we want to procrastinate.. :-)

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