On Fri, 2017-04-07 at 14:49 +0800, Huang, Ying wrote: > To solve the issue, the per-CPU buffer is sorted according to the > swap > device before freeing the swap entries. Test shows that the time > spent by swapcache_free_entries() could be reduced after the patch. > > Test the patch via measuring the run time of > swap_cache_free_entries() > during the exit phase of the applications use much swap space. The > results shows that the average run time of swap_cache_free_entries() > reduced about 20% after applying the patch. > > Signed-off-by: Huang Ying <ying.huang@xxxxxxxxx> > Acked-by: Tim Chen <tim.c.chen@xxxxxxxxx> > Cc: Hugh Dickins <hughd@xxxxxxxxxx> > Cc: Shaohua Li <shli@xxxxxxxxxx> > Cc: Minchan Kim <minchan@xxxxxxxxxx> > Cc: Rik van Riel <riel@xxxxxxxxxx> Acked-by: Rik van Riel <riel@xxxxxxxxxx> -- 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>
