+ date + echo Sat Aug 13 21:08:00 UTC 2011 TESTING direct-rndwr-16 Sat Aug 13 21:08:00 UTC 2011 TESTING direct-rndwr-16 + date + echo Sat Aug 13 21:08:00 UTC 2011 start iteration 1 Sat Aug 13 21:08:00 UTC 2011 start iteration 1 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndwr --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 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 write test Threads started! Time limit exceeded, exiting... (last message repeated 15 times) Done. Operations performed: 0 Read, 26604 Write, 0 Other = 26604 Total Read 0b Written 415.69Mb Total transferred 415.69Mb (2.2536Mb/sec) 144.23 Requests/sec executed Test execution summary: total time: 184.4518s total number of events: 26604 total time taken by event execution: 2946.8149 per-request statistics: min: 0.35ms avg: 110.77ms max: 8873.11ms approx. 95 percentile: 167.00ms Threads fairness: events (avg/stddev): 1662.7500/16.13 execution time (avg/stddev): 184.1759/0.56 + date + echo Sat Aug 13 21:11:04 UTC 2011 start iteration 2 Sat Aug 13 21:11:04 UTC 2011 start iteration 2 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndwr --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 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 write test Threads started! Time limit exceeded, exiting... (last message repeated 15 times) Done. Operations performed: 0 Read, 27386 Write, 0 Other = 27386 Total Read 0b Written 427.91Mb Total transferred 427.91Mb (2.3761Mb/sec) 152.07 Requests/sec executed Test execution summary: total time: 180.0898s total number of events: 27386 total time taken by event execution: 2880.6820 per-request statistics: min: 0.36ms avg: 105.19ms max: 6589.18ms approx. 95 percentile: 164.62ms Threads fairness: events (avg/stddev): 1711.6250/17.64 execution time (avg/stddev): 180.0426/0.03 + date + echo Sat Aug 13 21:14:05 UTC 2011 start iteration 3 Sat Aug 13 21:14:05 UTC 2011 start iteration 3 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndwr --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 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 write test Threads started! Time limit exceeded, exiting... (last message repeated 15 times) Done. Operations performed: 0 Read, 27105 Write, 0 Other = 27105 Total Read 0b Written 423.52Mb Total transferred 423.52Mb (2.2765Mb/sec) 145.70 Requests/sec executed Test execution summary: total time: 186.0351s total number of events: 27105 total time taken by event execution: 2958.9637 per-request statistics: min: 0.44ms avg: 109.17ms max: 6648.77ms approx. 95 percentile: 165.80ms Threads fairness: events (avg/stddev): 1694.0625/14.01 execution time (avg/stddev): 184.9352/1.25 + date + echo Sat Aug 13 21:17:11 UTC 2011 start iteration 4 Sat Aug 13 21:17:11 UTC 2011 start iteration 4 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndwr --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 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 write test Threads started! Time limit exceeded, exiting... (last message repeated 15 times) Done. Operations performed: 0 Read, 25460 Write, 0 Other = 25460 Total Read 0b Written 397.81Mb Total transferred 397.81Mb (2.2091Mb/sec) 141.38 Requests/sec executed Test execution summary: total time: 180.0783s total number of events: 25460 total time taken by event execution: 2880.6394 per-request statistics: min: 0.39ms avg: 113.14ms max: 7258.83ms approx. 95 percentile: 168.86ms Threads fairness: events (avg/stddev): 1591.2500/10.40 execution time (avg/stddev): 180.0400/0.02 + date + echo Sat Aug 13 21:20:11 UTC 2011 DONE TESTING direct-rndwr-16 Sat Aug 13 21:20:11 UTC 2011 DONE TESTING direct-rndwr-16 + exec