Re: [patch 1/5] mm: exclude reserved pages from dirtyable memory

2011-10-03 Thread Mel Gorman
On Fri, Sep 30, 2011 at 09:17:20AM +0200, Johannes Weiner wrote: > The amount of dirtyable pages should not include the full number of > free pages: there is a number of reserved pages that the page > allocator and kswapd always try to keep free. > > The closer (reclaimable pages - dirty pages) is

Re: [patch 1/5] mm: exclude reserved pages from dirtyable memory

2011-10-01 Thread Minchan Kim
On Fri, Sep 30, 2011 at 09:17:20AM +0200, Johannes Weiner wrote: > The amount of dirtyable pages should not include the full number of > free pages: there is a number of reserved pages that the page > allocator and kswapd always try to keep free. > > The closer (reclaimable pages - dirty pages) is

Re: [patch 1/5] mm: exclude reserved pages from dirtyable memory

2011-09-30 Thread Michal Hocko
On Fri 30-09-11 09:17:20, Johannes Weiner wrote: > The amount of dirtyable pages should not include the full number of > free pages: there is a number of reserved pages that the page > allocator and kswapd always try to keep free. > > The closer (reclaimable pages - dirty pages) is to the number o

[patch 1/5] mm: exclude reserved pages from dirtyable memory

2011-09-30 Thread Johannes Weiner
The amount of dirtyable pages should not include the full number of free pages: there is a number of reserved pages that the page allocator and kswapd always try to keep free. The closer (reclaimable pages - dirty pages) is to the number of reserved pages, the more likely it becomes for reclaim to