On Wed, 27 Apr 2022 12:00:15 -0400 Johannes Weiner <hannes@xxxxxxxxxxx> wrote: > Currently it requires poking at debugfs to figure out the size and > population of the zswap cache on a host. There are no counters for > reads and writes against the cache. As a result, it's difficult to > understand zswap behavior on production systems. > > Print zswap memory consumption and how many pages are zswapped out in > /proc/meminfo. Count zswapouts and zswapins in /proc/vmstat. /proc/meminfo is rather prime real estate. Is this important enough to be placed in there, or should it instead be in the more lowly /proc/vmstat? /proc/meminfo is documented in Documentation/filesystems/proc.rst ;) That file appears to need a bit of updating for other things.
