[Lustre-discuss] Interpreting stats files
Dragseth Roy Einar
roy.dragseth at uit.no
Fri Nov 7 12:29:41 PST 2014
Is there a description of the stats file formats anywhere?
I'm especially interested in the
/proc/fs/lustre/obdfilter/*/exports/*/stats
files. For instance, what does the last three numbers on the read_bytes or write_bytes lines mean?
[root at oss1 ~]# cat /proc/fs/lustre/obdfilter/uit-OST0009/exports/192.168.255.161 at o2ib/stats
snapshot_time 1415391739.442581 secs.usecs
read_bytes 365486 samples [bytes] 2720 1048576 363509372808
write_bytes 12183 samples [bytes] 7384 1048576 12762602232
preprw 377677 samples [reqs]
commitrw 377669 samples [reqs]
ping 832 samples [reqs]
(I'm trying to create a simple tool to scan all OSSes and detect the worst IO hogs on our system)
Regards,
Roy.
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