+ date + echo Sat Aug 13 15:01:15 UTC 2011 TESTING direct-seqwr-16 Sat Aug 13 15:01:15 UTC 2011 TESTING direct-seqwr-16 + date + echo Sat Aug 13 15:01:15 UTC 2011 start iteration 1 Sat Aug 13 15:01:15 UTC 2011 start iteration 1 + sysbench --test=fileio --file-total-size=100G --file-test-mode=seqwr --max-time=180 --max-requests=100000000 --num-threads=16 --init-rng=on --file-num=64 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=16384 run sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 16 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing sequential write (creation) test Threads started! Time limit exceeded, exiting... (last message repeated 15 times) Done. Operations performed: 0 Read, 682118 Write, 0 Other = 682118 Total Read 0b Written 10.408Gb Total transferred 10.408Gb (59.202Mb/sec) 3788.93 Requests/sec executed Test execution summary: total time: 180.0294s total number of events: 682118 total time taken by event execution: 2876.5664 per-request statistics: min: 0.14ms avg: 4.22ms max: 763.44ms approx. 95 percentile: 1.94ms Threads fairness: events (avg/stddev): 42632.3750/18950.05 execution time (avg/stddev): 179.7854/0.01 + date + echo Sat Aug 13 15:04:15 UTC 2011 start iteration 2 Sat Aug 13 15:04:15 UTC 2011 start iteration 2 + sysbench --test=fileio --file-total-size=100G --file-test-mode=seqwr --max-time=180 --max-requests=100000000 --num-threads=16 --init-rng=on --file-num=64 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=16384 run sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 16 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing sequential write (creation) test Threads started! Time limit exceeded, exiting... (last message repeated 15 times) Done. Operations performed: 0 Read, 656313 Write, 0 Other = 656313 Total Read 0b Written 10.015Gb Total transferred 10.015Gb (56.97Mb/sec) 3646.10 Requests/sec executed Test execution summary: total time: 180.0043s total number of events: 656313 total time taken by event execution: 2876.9160 per-request statistics: min: 0.14ms avg: 4.38ms max: 811.24ms approx. 95 percentile: 6.95ms Threads fairness: events (avg/stddev): 41019.5625/29932.09 execution time (avg/stddev): 179.8073/0.02 + date + echo Sat Aug 13 15:07:15 UTC 2011 start iteration 3 Sat Aug 13 15:07:15 UTC 2011 start iteration 3 + sysbench --test=fileio --file-total-size=100G --file-test-mode=seqwr --max-time=180 --max-requests=100000000 --num-threads=16 --init-rng=on --file-num=64 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=16384 run sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 16 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing sequential write (creation) test Threads started! Time limit exceeded, exiting... (last message repeated 15 times) Done. Operations performed: 0 Read, 652982 Write, 0 Other = 652982 Total Read 0b Written 9.9637Gb Total transferred 9.9637Gb (56.679Mb/sec) 3627.44 Requests/sec executed Test execution summary: total time: 180.0119s total number of events: 652982 total time taken by event execution: 2877.0056 per-request statistics: min: 0.14ms avg: 4.41ms max: 490.65ms approx. 95 percentile: 22.27ms Threads fairness: events (avg/stddev): 40811.3750/32352.55 execution time (avg/stddev): 179.8129/0.02 + date + echo Sat Aug 13 15:10:15 UTC 2011 start iteration 4 Sat Aug 13 15:10:15 UTC 2011 start iteration 4 + sysbench --test=fileio --file-total-size=100G --file-test-mode=seqwr --max-time=180 --max-requests=100000000 --num-threads=16 --init-rng=on --file-num=64 --file-extra-flags=direct --file-fsync-freq=0 --file-block-size=16384 run sysbench 0.4.12: multi-threaded system evaluation benchmark Running the test with following options: Number of threads: 16 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing sequential write (creation) test Threads started! Time limit exceeded, exiting... (last message repeated 15 times) Done. Operations performed: 0 Read, 637438 Write, 0 Other = 637438 Total Read 0b Written 9.7265Gb Total transferred 9.7265Gb (55.33Mb/sec) 3541.11 Requests/sec executed Test execution summary: total time: 180.0109s total number of events: 637438 total time taken by event execution: 2876.9324 per-request statistics: min: 0.14ms avg: 4.51ms max: 691.12ms approx. 95 percentile: 7.69ms Threads fairness: events (avg/stddev): 39839.8750/18977.34 execution time (avg/stddev): 179.8083/0.01 + date + echo Sat Aug 13 15:13:15 UTC 2011 DONE TESTING direct-seqwr-16 Sat Aug 13 15:13:15 UTC 2011 DONE TESTING direct-seqwr-16 + exec