Re: [REGRESSION] 2.6.19/2.6.20-rc3 buffered write slowdown

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Christoph Lameter wrote:
On Thu, 11 Jan 2007, Nick Piggin wrote:


You're not turning on zone_reclaim, by any chance, are you?


It is not a NUMA system so zone reclaim is not available.

Ah yes... Can't you force it on if you have a NUMA complied kernel?

zone reclaim was already in 2.6.16.

Well it was a long shot, but that is something that has had a few
changes recently and is something that could interact badly with
the global pdflush.

--
SUSE Labs, Novell Inc.
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