Re: [External] Re: [RFC PATCH 1/3] zram: charge the compressed RAM to the page's memcgroup

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> While looking at this in the past weeks, I believe that there are two distinct problems:
> 1. Direct zram usage by process within a cg ie. a process writing to a zram device
> 2. Indirect zram usage by a process within a cg via swap (described above)
>
> Both of them probably require different solutions.
> In order to fix #1, accounting a zram device should be accounted towards a cgroup. IMHO this is something that should be fixed.
>
> Yu Zhao and Yosry are probably much more familiar with the solution to #2.
> WRT per-cgrou-swapfile, to me this is addressing #2, but I agree with Yu Zhao, that there are probably better solutions to this.
>
> Lastly, this patchset, while it will possibly not address the swap issue (#2) completely, is it satisfying the needs of #1?
>
> - fabian

Thanks for your reply, fabian. According to the previous design and
test results, this patchset can meet the need of  direct and
indirect usage scenarios,charge the compressed memory to memory cgroup.





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