Messages in this thread | | | Subject | Re: [RFC PATCH] mm: balance_dirty_pages. reduce calls to global_page_state to reduce cache references | From | Miklos Szeredi <> | Date | Thu, 27 Aug 2009 11:21:56 +0200 |
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On Wed, 26 Aug 2009, Richard Kennedy wrote: > The old behavior was to use NR_WRITEBACK_TEMP to clip the bdi > thresholds.
Right.
> Should we continue to do this or just ignore NR_WRIEBACK_TEMP completely > in balance_dirty_pages ?
I think we should. Using NR_WRIEBACK_TEMP for setting up per-bdi thresholds should be OK. It limits the total number of writback pages (including fuse ones) but doesn't prevent individual bdi's from continuing writback at their own pace.
Thanks, Miklos
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