On 07/03/2018 03:34 AM, Linus Torvalds wrote: > On Sun, Jul 1, 2018 at 10:52 PM Waiman Long <longman@xxxxxxxxxx> wrote: >> A rogue application can potentially create a large number of negative >> dentries in the system consuming most of the memory available if it >> is not under the direct control of a memory controller that enforce >> kernel memory limit. > I certainly don't mind the patch series, but I would like it to be > accompanied with some actual example numbers, just to make it all a > bit more concrete. > > Maybe even performance numbers showing "look, I've filled the dentry > lists with nasty negative dentries, now it's all slower because we > walk those less interesting entries". > > Linus I did have performance numbers in the previous version of the patchset. I will rerun the performance test and post the numbers later on. Cheers, Longman
