On Tue, Apr 26, 2022 at 09:41:34AM -0700, Roman Gushchin wrote: > My plan is to work on convert shrinkers API to bytes and experiment > with different LRU implementations. I find an ability to easily export > statistics and other data (which doesn't exist now) via debugfs useful > (and way more convenient than changing existing tracepoints), as well as > an ability to trigger scanning of individual shrinkers. If nobody else > seeing any value here, I'm fine to keep these patches private, no reason > to argue about the output format then. I don't think converting the shrinker API to bytes instead of object counts is such a great idea - that's going to introducing new rounding errors and new corner cases when we can't free the exact # of bytes requested. I was thinking along the lines of adding reporting for memory usage in bytes as either an additional thing the .count_objects reports, or a new callback.
