hm. On Thu, 31 Oct 2024 22:45:49 +0000 Kinsey Ho <kinseyho@xxxxxxxxxx> wrote: > We noticed high overhead for pages allocated for struct swap_cgroup in > our fleet. This is scanty. Please describe the problem further. > This patchset adds the number of pages allocated for struct > swap_cgroup to vmstat. This can be a useful metric for identifying > unneeded overhead on systems which configure swap. Possibly dumb question: can we switch swap_cgroup_prepare to kmalloc() (or kmem-cache_alloc()) and use slab's accounting to satisfy this requirement? > Before adding the new stat, Patch 1 introduces a generic system-wide > counting interface. I don't really understand this one and would like to hear much more about the motivation. And: "the existing use case" is OK with a global counter, but what about future use cases? And: what are the future use cases? Thanks.
