Messages in this thread | | | Date | Tue, 27 Jul 2010 22:34:23 +0800 | From | Wu Fengguang <> | Subject | Re: [PATCH 8/8] vmscan: Kick flusher threads to clean pages when reclaim is encountering dirty pages |
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> If you plan to keep wakeup_flusher_threads(), a simpler form may be > sufficient, eg. > > laptop_mode ? 0 : (nr_dirty * 16)
This number is not sensitive because the writeback code may well round it up to some more IO efficient value (currently 4MB). AFAIK the nr_pages parameters passed by all existing flusher callers are some rule-of-thumb value, and far from being an exact number.
Thanks, Fengguang
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