On Wed, Jul 17, 2024 at 07:48:40PM -0400, Waiman Long wrote: ... > How about letting .peak shows two numbers? The first one is the peak since > the creation of the cgroup and cannot be reset. The second one is a local > maximum that can be reset to 0. We just to keep track of one more counter > that should be simple enough to implement. What Johannes suggested seems to hit all the marks - it's efficient and relatively simple, the overhead is only on the users of the facility, and flexible in a straightforward manner. I have a hard time buying the argument that it's more difficult to use - the benefit to cost ratio seems pretty clear. Given that, I'm not sure why we'd want to add something fishy that can lead to longterm problems. Thanks. -- tejun