Messages in this thread | | | Subject | Re: [PATCH 0/4] [RFC] Migrate Pages in lieu of discard | From | Dave Hansen <> | Date | Thu, 17 Oct 2019 13:51:10 -0700 |
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On 10/17/19 9:58 AM, Shakeel Butt wrote: >> My expectation (and I haven't confirmed this) is that the any memory use >> is accounted to the owning cgroup, whether it is DRAM or PMEM. memcg >> limit reclaim and global reclaim both end up doing migrations and >> neither should have a net effect on the counters. >> > Hmm I didn't see the memcg charge migration in the code on demotion. > So, in the code [patch 3] the counters are being decremented as DRAM > is freed but not incremented for PMEM.
I had assumed that the migration code was doing this for me. I'll go make sure either way.
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