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    SubjectRe: [RFC v2 83/83] Sysfs support.
    On Thu, Mar 22, 2018 at 8:00 AM, David Sterba <dsterba@suse.cz> wrote:
    > On Sat, Mar 10, 2018 at 10:19:04AM -0800, Andiry Xu wrote:
    >> From: Andiry Xu <jix024@cs.ucsd.edu>
    >>
    >> Sysfs support allows user to get/post information of running NOVA instance.
    >> After mount, NOVA creates four entries under proc directory
    >> /proc/fs/nova/pmem#/:
    >>
    >> timing_stats IO_stats allocator gc
    >>
    >> Show NOVA file operation timing statistics:
    >> cat /proc/fs/NOVA/pmem#/timing_stats
    >>
    >> Clear timing statistics:
    >> echo 1 > /proc/fs/NOVA/pmem#/timing_stats
    >>
    >> Show NOVA I/O statistics:
    >> cat /proc/fs/NOVA/pmem#/IO_stats
    >>
    >> Clear I/O statistics:
    >> echo 1 > /proc/fs/NOVA/pmem#/IO_stats
    >>
    >> Show NOVA allocator information:
    >> cat /proc/fs/NOVA/pmem#/allocator
    >>
    >> Manual garbage collection:
    >> echo #inode_number > /proc/fs/NOVA/pmem#/gc
    >
    > IIRC no new entries should be added to /proc, /sys is supposed to be
    > used. I can't find it documented though, so you'd better check with
    > sysfs people.

    Thanks. I will try to switch to sysfs.

    Thanks,
    Andiry

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