Messages in this thread | | | Date | Tue, 1 Sep 2009 14:44:55 -0400 | From | Christoph Hellwig <> | Subject | Re: [PATCH 8/8] vm: Add an tuning knob for vm.max_writeback_pages |
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On Tue, Sep 01, 2009 at 08:38:55PM +0200, Peter Zijlstra wrote: > Do we really need a tunable for this?
It will make increasing it in the field a lot easier. And having deal with really large systems I have the fear that there are I/O topologies outhere for which every "reasonable" value is too low.
> I guess we need a limit to avoid it writing out everything, but can't we > have something automagic?
Some automatic adjustment would be nice. But finding the right auto tuning will be an interesting exercise.
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