On Wed, Apr 30, 2025 at 08:41:20AM +0000, Hans Holmberg wrote: > Sending out as an RFC to get comments, specifically about the potential > mru lock contention when doing the lookup during allocation. I am a little worried about that. The MRU cache is implemented right now rotates the mru list on every lookup under a mru-cache wide lock, which is bit of a performance nightmare. I wonder if we can do some form of batched move between the mru buckets that can reduce the locking and cacheline write impact. But maybe it's worth to give this a try and work from performance reports as needed.
