Details
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Bug
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Resolution: Fixed
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Major
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Lustre 2.4.0
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None
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3
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5771
Description
During Minh's performance test on Opensfs cluster, we found a quite performance degradation.
b2_3 test result
[root@c24 bin]# ./run_mdsrate_create 0: c01 starting at Thu Dec 6 08:48:39 2012 Rate: 26902.88 eff 26902.57 aggr 140.12 avg client creates/sec (total: 192 threads 3840000 creates 192 dirs 1 threads/dir 142.74 secs) 0: c01 finished at Thu Dec 6 08:51:02 2012 [root@c24 bin]# ./run_mdsrate_stat 0: c01 starting at Thu Dec 6 08:51:50 2012 Rate: 169702.53 eff 169703.11 aggr 883.87 avg client stats/sec (total: 192 threads 3840000 stats 192 dirs 1 threads/dir 22.63 secs) 0: c01 finished at Thu Dec 6 08:52:13 2012 [root@c24 bin]# ./run_mdsrate_unlink 0: c01 starting at Thu Dec 6 08:52:28 2012 Rate: 33486.06 eff 33486.74 aggr 174.41 avg client unlinks/sec (total: 192 threads 3840000 unlinks 192 dirs 1 threads/dir 114.67 secs) Warning: only unlinked 3840000 files instead of 20000 0: c01 finished at Thu Dec 6 08:54:23 2012 [root@c24 bin]# ./run_mdsrate_mknod 0: c01 starting at Thu Dec 6 08:54:32 2012 Rate: 52746.29 eff 52745.00 aggr 274.71 avg client mknods/sec (total: 192 threads 3840000 mknods 192 dirs 1 threads/dir 72.80 secs) 0: c01 finished at Thu Dec 6 08:55:45 2012 [root@c24 bin]#
Master test result
[root@c24 bin]# ./run_mdsrate_create 0: c01 starting at Tue Dec 4 21:15:40 2012 Rate: 6031.09 eff 6031.11 aggr 31.41 avg client creates/sec (total: 192 threads 3840000 creates 192 dirs 1 threads/dir 636.70 secs) 0: c01 finished at Tue Dec 4 21:26:17 2012 [root@c24 bin]# ./run_mdsrate_stat 0: c01 starting at Tue Dec 4 21:27:04 2012 Rate: 177962.00 eff 177964.59 aggr 926.90 avg client stats/sec (total: 192 threads 3840000 stats 192 dirs 1 threads/dir 21.58 secs) 0: c01 finished at Tue Dec 4 21:27:26 2012 [root@c24 bin]# ./run_mdsrate_unlink 0: c01 starting at Tue Dec 4 21:29:47 2012 Rate: 8076.06 eff 8076.08 aggr 42.06 avg client unlinks/sec (total: 192 threads 3840000 unlinks 192 dirs 1 threads/dir 475.48 secs) Warning: only unlinked 3840000 files instead of 20000 0: c01 finished at Tue Dec 4 21:37:43 2012 [root@c24 bin]# ./run_mdsrate_mknod 0: c01 starting at Tue Dec 4 21:48:41 2012 Rate: 10430.50 eff 10430.61 aggr 54.33 avg client mknods/sec (total: 192 threads 3840000 mknods 192 dirs 1 threads/dir 368.15 secs) 0: c01 finished at Tue Dec 4 21:54:49 2012
