Messages in this thread | | | Date | Wed, 9 Sep 2009 08:28:06 -0400 | From | Christoph Hellwig <> | Subject | Re: [PATCH 8/8] vm: Add an tuning knob for vm.max_writeback_mb |
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On Wed, Sep 09, 2009 at 05:29:01PM +0800, Wu Fengguang wrote: > It seems that balance_dirty_pages() is not coupled with MAX_WRITEBACK_PAGES. > Instead it uses the much smaller (ratelimit_pages + ratelimit_pages / 2).
With Jen's writeback patches applied balance_dirty_pages does not start writeback itself anymore but calls bdi_start_writeback to let the flusher thread do it.
it would be good if we do any writeback tuning ontop of these patches..
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