"samples" is the number of times this event was measured, and it happens that these request stats are all measured together. The values to the right of the units are min/max/sum/[sumsq] in units of microseconds, or seconds, or requests. To work out the average request waittime is:
(sum / samples) = 1257652419050 / 611801704 = 2055usec Cheers, Andreas -- Andreas Dilger Lustre Principal Architect Intel High Performance Data Division On 2016/09/16, 10:45, "Mahmoud Hanafi" <mahmoud.han...@nasa.gov> wrote: Why is 'samples' the same for req_waittime, req_qepth, req_active, req_timeout all the same. req_waittime 611801704 samples [usec] 3 5061774 1257652419050 953071357361477866 req_qdepth 611801704 samples [reqs] 0 89 21110263 22332201 req_active 611801704 samples [reqs] 1 127 2647563677 122463789917 req_timeout 611801704 samples [sec] 150 150 91770255600 13765538340000 reqbuf_avail 1256133286 samples [bufs] 481 574 705260598158 396165104527476 .... shouldn't the samples for [usec] be total usec similar to units of [bytes]. For example: cat /proc/fs/lustre/obdfilter/nbp8-OST00d1/stats snapshot_time 1474043858.153583 secs.usecs read_bytes 21704638 samples [bytes] 4096 1048576 12917847764992 write_bytes 25971348 samples [bytes] 1 1048576 19719890405713 .... Samples here is total bytes transferred correct? -- Mahmoud Hanafi _______________________________________________ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org _______________________________________________ lustre-discuss mailing list lustre-discuss@lists.lustre.org http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org