Messages in this thread | | | Date | Fri, 12 Jan 2007 11:06:48 +1100 | From | Nick Piggin <> | Subject | 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.
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