On 06.02.20 10:44, Wang, Wei W wrote: > On Thursday, February 6, 2020 5:32 PM, David Hildenbrand wrote: >> >> If the page cache is empty, a drop_slab() will deflate the whole balloon if I >> am not wrong. >> >> Especially, a echo 3 > /proc/sys/vm/drop_caches >> >> will first drop the page cache and then drop_slab() > > Then that's the problem of "echo 3 > /proc/sys/vm/drop_cache" itself. It invokes other shrinkers as well (if considered an issue), need to be tweaked in the mm. In short, I don't like this approach as long as a drop_slab() can deflate the whole balloon and don't think this is the right approach then. -- Thanks, David / dhildenb _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
