On 04/10/2013 06:51 AM, Joonsoo Kim wrote: > As you can see, before this patch, do_shrinker_shrink() for > "huge_zero_page_shrinker" is not called until we call shrink_slab() more > than 13 times. *Frequency* we call do_shrinker_shrink() actually is > largely different with before. With this patch, we actually call > do_shrinker_shrink() for "huge_zero_page_shrinker" 12 times more > than before. Can we be convinced that there will be no problem? > > This is why I worry about this change. > Am I worried too much? :) Yes, you are. The amount of times shrink_slab is called is completely unpredictable. Changing the size of cached data structures is a lot more likely to change this than this shrinker change, for instance. Not to mention, the amount of times shrink_slab() is called is not changed directly here. But rather, the amount of times an individual shrinker actually does work. -- 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>