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Bug #2154
closedrados: bench seq should not segfault when blocksize doesn't match write blocksize
Status:
Resolved
Priority:
Low
Assignee:
-
Category:
librados
Target version:
-
% Done:
0%
Source:
Development
Tags:
Backport:
Regression:
Severity:
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
I misunderstood the problem to begin with. The issue is when read size does not match the prior write size (I hadn't realized there was a correlation but it makes sense).
Updated by Dan Mick about 12 years ago
- Subject changed from rados: bench should not segfault with -b 1024 to rados: bench should not segfault with -b < 1048576
Updated by Dan Mick about 12 years ago
- Subject changed from rados: bench should not segfault with -b < 1048576 to rados: bench seq should not segfault with -b < 1048576
- Description updated (diff)
Updated by Dan Mick about 12 years ago
- Subject changed from rados: bench seq should not segfault with -b < 1048576 to rados: bench seq should not segfault when blocksize doesn't match write blocksize
- Description updated (diff)
Updated by Loïc Dachary over 9 years ago
- Status changed from New to Resolved
loic@fold:~/software/ceph/ceph/src$ rados --pool rbd -b 4096 bench 5 write --no-cleanup --run-name try Maintaining 16 concurrent writes of 4096 bytes for up to 5 seconds or 0 objects Object prefix: benchmark_data_fold_20180 sec Cur ops started finished avg MB/s cur MB/s last lat avg lat 0 0 0 0 0 0 - 0 1 16 67 51 0.199177 0.199219 0.327991 0.228371 2 16 112 96 0.187461 0.175781 0.267772 0.32414 3 16 147 131 0.170542 0.136719 0.211988 0.360128 4 16 161 145 0.141577 0.0546875 0.994443 0.364593 5 16 172 156 0.121854 0.0429688 1.32801 0.422482 Total time run: 5.625777 Total writes made: 173 Write size: 4096 Bandwidth (MB/sec): 0.120 Stddev Bandwidth: 0.0802827 Max bandwidth (MB/sec): 0.199219 Min bandwidth (MB/sec): 0 Average Latency: 0.512548 Stddev Latency: 0.411049 Max latency: 2.49627 Min latency: 0.154259 loic@fold:~/software/ceph/ceph/src$ rados --pool rbd -b 1024 bench 5 seq --no-cleanup --run-name try sec Cur ops started finished avg MB/s cur MB/s last lat avg lat 0 0 0 0 0 0 - 0 Total time run: 0.042500 Total reads made: 173 Read size: 4096 Bandwidth (MB/sec): 15.901 Average Latency: 0.00387084 Max latency: 0.00833 Min latency: 0.000879
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