On Mon, Oct 28, 2024 at 5:23 AM Usama Arif <usamaarif642@xxxxxxxxx> wrote: > > I wonder if instead of having counters, it might be better to keep track > of the number of zeropages currently stored in zeromap, similar to how > zswap_same_filled_pages did it. It will be more complicated then this > patch, but would give more insight of the current state of the system. > > Joshua (in CC) was going to have a look at that. I don't think one can substitute for the other. The "current zeromapped page" counter gives you a breakdown of where memory resides, whereas the in/out counters explain past performance based on events that have happened. That's why you have zswap, zswapped, zswpout, zswpin.
