Messages in this thread | | | Date | Wed, 27 Apr 2022 11:36:54 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH 4/5] mm: zswap: add basic meminfo and vmstat coverage |
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On Wed, 27 Apr 2022 12:00:15 -0400 Johannes Weiner <hannes@cmpxchg.org> 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.
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