Adrian Ulrich wrote:
If you've got a lot of OSTs on your server you need a wide monitor for some
of the options like --monitor=ost-patterns for all OSTs...
The output format is not ideal, but it's a good reason to upgrade your
workstation to a dualhead configuration ;-)
;-)
[snip]
'lustre-info.pl --monitor=io-size' seems to sit at "collecting data,
please wait..." for a very long time until I killed it, I have not had
the time to debug this yet.
I never tested it with anything else than 1.8.1.1 but this should be
trivial to fix:
Could you mail me the output of
/proc/fs/lustre/obdfilter/##SOME_OST##/exports/##A_RANDOM_NID##/brw_stats ?
See attached.
Thanks!
Frederik
--
Frederik Ferner
Computer Systems Administrator phone: +44 1235 77 8624
Diamond Light Source Ltd. mob: +44 7917 08 5110
(Apologies in advance for the lines below. Some bits are a legal
requirement and I have no control over them.)
snapshot_time: 1280423140.470719 (secs.usecs)
read | write
pages per bulk r/w rpcs % cum % | rpcs % cum %
1: 657 0 0 | 2533 0 0
2: 119 0 0 | 2571 0 1
4: 146 0 0 | 44921 12 13
8: 107 0 0 | 280002 77 91
16: 112 0 0 | 6 0 91
32: 37 0 0 | 12 0 91
64: 19 0 0 | 10 0 91
128: 26 0 0 | 21 0 91
256: 727565 99 100 | 28991 8 100
read | write
discontiguous pages rpcs % cum % | rpcs % cum %
0: 726505 99 99 | 359067 100 100
1: 0 0 99 | 0 0 100
2: 15 0 99 | 0 0 100
3: 0 0 99 | 0 0 100
4: 1 0 99 | 0 0 100
5: 2 0 99 | 0 0 100
6: 2243 0 99 | 0 0 100
7: 22 0 100 | 0 0 100
read | write
discontiguous blocks rpcs % cum % | rpcs % cum %
0: 725512 99 99 | 359067 100 100
1: 541 0 99 | 0 0 100
2: 315 0 99 | 0 0 100
3: 134 0 99 | 0 0 100
4: 14 0 99 | 0 0 100
5: 3 0 99 | 0 0 100
6: 2247 0 99 | 0 0 100
7: 22 0 100 | 0 0 100
read | write
disk fragmented I/Os ios % cum % | ios % cum %
0: 18 0 0 | 0 0 0
1: 719295 98 98 | 357926 99 99
2: 6200 0 99 | 1141 0 100
3: 540 0 99 | 0 0 100
4: 94 0 99 | 0 0 100
5: 221 0 99 | 0 0 100
6: 35 0 99 | 0 0 100
7: 68 0 99 | 0 0 100
8: 15 0 99 | 0 0 100
9: 16 0 99 | 0 0 100
10: 6 0 99 | 0 0 100
11: 4 0 99 | 0 0 100
12: 0 0 99 | 0 0 100
13: 3 0 99 | 0 0 100
14: 1 0 99 | 0 0 100
15: 0 0 99 | 0 0 100
16: 0 0 99 | 0 0 100
17: 0 0 99 | 0 0 100
18: 0 0 99 | 0 0 100
19: 0 0 99 | 0 0 100
20: 0 0 99 | 0 0 100
21: 1 0 99 | 0 0 100
22: 0 0 99 | 0 0 100
23: 0 0 99 | 0 0 100
24: 1 0 99 | 0 0 100
25: 0 0 99 | 0 0 100
26: 0 0 99 | 0 0 100
27: 0 0 99 | 0 0 100
28: 0 0 99 | 0 0 100
29: 0 0 99 | 0 0 100
30: 0 0 99 | 0 0 100
31: 2270 0 100 | 0 0 100
read | write
disk I/Os in flight ios % cum % | ios % cum %
read | write
I/O time (1/1000s) ios % cum % | ios % cum %
1: 865 0 0 | 331676 92 92
2: 10821 1 1 | 26464 7 99
4: 221868 30 32 | 875 0 99
8: 391101 53 85 | 16 0 99
16: 66126 9 94 | 1 0 99
32: 31806 4 99 | 7 0 99
64: 2475 0 99 | 17 0 99
128: 1288 0 99 | 11 0 100
256: 1447 0 99 | 0 0 100
512: 981 0 99 | 0 0 100
1K: 10 0 100 | 0 0 100
read | write
disk I/O size ios % cum % | ios % cum %
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