+ date + echo Sun Aug 14 00:20:31 UTC 2011 TESTING direct-rndrw-8 Sun Aug 14 00:20:31 UTC 2011 TESTING direct-rndrw-8 + date + echo Sun Aug 14 00:20:31 UTC 2011 start iteration 1 Sun Aug 14 00:20:31 UTC 2011 start iteration 1 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=8 --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: 8 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Number of random requests for random IO: 100000000 Read/Write ratio for combined random IO test: 1.50 Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing random r/w test Threads started! FATAL: Failed to read file! file: 53 pos: 1677361152 errno = 0 () FATAL: Failed to read file! file: 47 pos: 1677574144 errno = 0 () Time limit exceeded, exiting... (last message repeated 5 times) Done. Operations performed: 27791 Read, 18524 Write, 0 Other = 46315 Total Read 434.23Mb Written 289.44Mb Total transferred 723.67Mb (4.0196Mb/sec) 257.25 Requests/sec executed Test execution summary: total time: 180.0374s total number of events: 46315 total time taken by event execution: 1344.7435 per-request statistics: min: 0.00ms avg: 29.03ms max: 7062.51ms approx. 95 percentile: 118.36ms Threads fairness: events (avg/stddev): 5789.3750/1074.09 execution time (avg/stddev): 168.0929/25.54 + date + echo Sun Aug 14 00:23:31 UTC 2011 start iteration 2 Sun Aug 14 00:23:31 UTC 2011 start iteration 2 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=8 --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: 8 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Number of random requests for random IO: 100000000 Read/Write ratio for combined random IO test: 1.50 Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing random r/w test Threads started! FATAL: Failed to read file! file: 54 pos: 1677623296 errno = 0 () FATAL: Failed to read file! file: 59 pos: 1677623296 errno = 0 () Time limit exceeded, exiting... (last message repeated 5 times) Done. Operations performed: 29621 Read, 19748 Write, 0 Other = 49369 Total Read 462.83Mb Written 308.56Mb Total transferred 771.39Mb (4.2839Mb/sec) 274.17 Requests/sec executed Test execution summary: total time: 180.0658s total number of events: 49369 total time taken by event execution: 1116.5093 per-request statistics: min: 0.00ms avg: 22.62ms max: 5445.24ms approx. 95 percentile: 91.47ms Threads fairness: events (avg/stddev): 6171.1250/3115.52 execution time (avg/stddev): 139.5637/70.09 + date + echo Sun Aug 14 00:26:31 UTC 2011 start iteration 3 Sun Aug 14 00:26:31 UTC 2011 start iteration 3 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=8 --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: 8 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Number of random requests for random IO: 100000000 Read/Write ratio for combined random IO test: 1.50 Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing random r/w test Threads started! Time limit exceeded, exiting... (last message repeated 7 times) Done. Operations performed: 31080 Read, 20715 Write, 0 Other = 51795 Total Read 485.62Mb Written 323.67Mb Total transferred 809.3Mb (4.4945Mb/sec) 287.65 Requests/sec executed Test execution summary: total time: 180.0642s total number of events: 51795 total time taken by event execution: 1440.2675 per-request statistics: min: 0.00ms avg: 27.81ms max: 6007.38ms approx. 95 percentile: 118.15ms Threads fairness: events (avg/stddev): 6474.3750/271.52 execution time (avg/stddev): 180.0334/0.02 + date + echo Sun Aug 14 00:29:31 UTC 2011 start iteration 4 Sun Aug 14 00:29:31 UTC 2011 start iteration 4 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=8 --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: 8 Initializing random number generator from timer. Extra file open flags: 16384 64 files, 1.5625Gb each 100Gb total file size Block size 16Kb Number of random requests for random IO: 100000000 Read/Write ratio for combined random IO test: 1.50 Calling fsync() at the end of test, Enabled. Using synchronous I/O mode Doing random r/w test Threads started! FATAL: Failed to read file! file: 66 pos: 1677606912 errno = 0 () FATAL: Failed to read file! file: 43 pos: 1677705216 errno = 0 () Time limit exceeded, exiting... (last message repeated 5 times) Done. Operations performed: 30199 Read, 20138 Write, 0 Other = 50337 Total Read 471.86Mb Written 314.66Mb Total transferred 786.52Mb (4.3596Mb/sec) 279.02 Requests/sec executed Test execution summary: total time: 180.4089s total number of events: 50337 total time taken by event execution: 1280.3836 per-request statistics: min: 0.00ms avg: 25.44ms max: 6236.74ms approx. 95 percentile: 105.23ms Threads fairness: events (avg/stddev): 6292.1250/2059.51 execution time (avg/stddev): 160.0479/50.22 + date + echo Sun Aug 14 00:32:31 UTC 2011 DONE TESTING direct-rndrw-8 Sun Aug 14 00:32:31 UTC 2011 DONE TESTING direct-rndrw-8 + exec