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Date: Thu, 22 Mar 2018 17:31:13 -0700 From: Andiry Xu <jix024@....ucsd.edu> To: dsterba@...e.cz, Andiry Xu <jix024@....ucsd.edu>, Linux FS Devel <linux-fsdevel@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, "linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>, Dan Williams <dan.j.williams@...el.com>, "Rudoff, Andy" <andy.rudoff@...el.com>, coughlan@...hat.com, Steven Swanson <swanson@...ucsd.edu>, Dave Chinner <david@...morbit.com>, Jan Kara <jack@...e.com>, swhiteho@...hat.com, miklos@...redi.hu, Jian Xu <andiry.xu@...il.com>, Andiry Xu <jix024@...ucsd.edu> Subject: Re: [RFC v2 83/83] Sysfs support. On Thu, Mar 22, 2018 at 8:00 AM, David Sterba <dsterba@...e.cz> wrote: > On Sat, Mar 10, 2018 at 10:19:04AM -0800, Andiry Xu wrote: >> From: Andiry Xu <jix024@...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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