+ date + echo Sat Aug 13 17:26:46 UTC 2011 TESTING direct-seqwr-16 Sat Aug 13 17:26:46 UTC 2011 TESTING direct-seqwr-16 + date + echo Sat Aug 13 17:26:46 UTC 2011 start iteration 1 Sat Aug 13 17:26:46 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, 278723 Write, 0 Other = 278723 Total Read 0b Written 4.253Gb Total transferred 4.253Gb (24.194Mb/sec) 1548.41 Requests/sec executed Test execution summary: total time: 180.0065s total number of events: 278723 total time taken by event execution: 2878.0937 per-request statistics: min: 0.12ms avg: 10.33ms max: 574.14ms approx. 95 percentile: 83.21ms Threads fairness: events (avg/stddev): 17420.1875/15306.96 execution time (avg/stddev): 179.8809/0.01 + date + echo Sat Aug 13 17:29:46 UTC 2011 start iteration 2 Sat Aug 13 17:29:46 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, 324741 Write, 0 Other = 324741 Total Read 0b Written 4.9552Gb Total transferred 4.9552Gb (28.184Mb/sec) 1803.77 Requests/sec executed Test execution summary: total time: 180.0349s total number of events: 324741 total time taken by event execution: 2878.7462 per-request statistics: min: 0.12ms avg: 8.86ms max: 391.22ms approx. 95 percentile: 49.83ms Threads fairness: events (avg/stddev): 20296.3125/5570.27 execution time (avg/stddev): 179.9216/0.02 + date + echo Sat Aug 13 17:32:46 UTC 2011 start iteration 3 Sat Aug 13 17:32:46 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, 285913 Write, 0 Other = 285913 Total Read 0b Written 4.3627Gb Total transferred 4.3627Gb (24.818Mb/sec) 1588.36 Requests/sec executed Test execution summary: total time: 180.0055s total number of events: 285913 total time taken by event execution: 2878.4459 per-request statistics: min: 0.12ms avg: 10.07ms max: 446.10ms approx. 95 percentile: 90.76ms Threads fairness: events (avg/stddev): 17869.5625/8617.66 execution time (avg/stddev): 179.9029/0.01 + date + echo Sat Aug 13 17:35:46 UTC 2011 start iteration 4 Sat Aug 13 17:35:46 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, 340464 Write, 0 Other = 340464 Total Read 0b Written 5.1951Gb Total transferred 5.1951Gb (29.553Mb/sec) 1891.39 Requests/sec executed Test execution summary: total time: 180.0072s total number of events: 340464 total time taken by event execution: 2878.5522 per-request statistics: min: 0.12ms avg: 8.45ms max: 410.83ms approx. 95 percentile: 62.45ms Threads fairness: events (avg/stddev): 21279.0000/11690.68 execution time (avg/stddev): 179.9095/0.01 + date + echo Sat Aug 13 17:38:46 UTC 2011 DONE TESTING direct-seqwr-16 Sat Aug 13 17:38:46 UTC 2011 DONE TESTING direct-seqwr-16 + exec