On Wed, May 01, 2013 at 02:28:17PM +0800, Will Huck wrote: > Hi Mel, > On 04/30/2013 12:31 AM, Mel Gorman wrote: > >Andrew Perepechko reported a problem whereby pages are being prematurely > >evicted as the mark_page_accessed() hint is ignored for pages that are > >currently on a pagevec -- http://www.spinics.net/lists/linux-ext4/msg37340.html . > >Alexey Lyahkov and Robin Dong have also reported problems recently that > >could be due to hot pages reaching the end of the inactive list too quickly > >and be reclaimed. > > Both shrink_active_list and shrink_inactive_list can call > lru_add_drain(), why the hot pages can't be mark Actived during this > time? > Because by then it's not known that the filesystem had called mark_page_accessed() to indicate the page should be activated. -- Mel Gorman SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>