linux-kernel - Re: Avoid allocating during interleave from almost full nodes

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Date:	Wed, 8 Nov 2006 02:21:36 -0800
From:	Paul Jackson <pj@....com>
To:	Christoph Lameter <clameter@....com>
Cc:	akpm@...l.org, linux-kernel@...r.kernel.org
Subject: Re: Avoid allocating during interleave from almost full nodes

Christoph wrote:
> On Sat, 4 Nov 2006, Paul Jackson wrote:
> 
> >   Do you know of any existing counters that we could use like this?
> > 
> > Adding a system wide count of pages allocated or scanned, just for
> > these fullnode hint caches, bothers me.
> 
> There are already such counters. PGALLOC_* and PGSCAN_*. See 
> include/linux/vmstat.h


  Andrew,

    I'm willing to take a shot at replacing the wall clock time
    base with one of these vm counters, in my patch in *-mm:

	memory-page_alloc-zonelist-caching-speedup.patch

    But it will be a few weeks before I can get to it.

    I really need to do some other stuff first.

-- 
                  I won't rest till it's the best ...
                  Programmer, Linux Scalability
                  Paul Jackson <pj@....com> 1.925.600.0401
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