+ date + echo Sat Aug 13 16:14:00 UTC 2011 TESTING direct-seqwr-16 Sat Aug 13 16:14:00 UTC 2011 TESTING direct-seqwr-16 + date + echo Sat Aug 13 16:14:00 UTC 2011 start iteration 1 Sat Aug 13 16:14:00 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, 650190 Write, 0 Other = 650190 Total Read 0b Written 9.9211Gb Total transferred 9.9211Gb (56.439Mb/sec) 3612.10 Requests/sec executed Test execution summary: total time: 180.0031s total number of events: 650190 total time taken by event execution: 2876.7891 per-request statistics: min: 0.13ms avg: 4.42ms max: 819.50ms approx. 95 percentile: 9.43ms Threads fairness: events (avg/stddev): 40636.8750/16706.58 execution time (avg/stddev): 179.7993/0.01 + date + echo Sat Aug 13 16:17:00 UTC 2011 start iteration 2 Sat Aug 13 16:17:00 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, 645079 Write, 0 Other = 645079 Total Read 0b Written 9.8431Gb Total transferred 9.8431Gb (55.995Mb/sec) 3583.70 Requests/sec executed Test execution summary: total time: 180.0036s total number of events: 645079 total time taken by event execution: 2877.0120 per-request statistics: min: 0.13ms avg: 4.46ms max: 779.73ms approx. 95 percentile: 16.66ms Threads fairness: events (avg/stddev): 40317.4375/22081.67 execution time (avg/stddev): 179.8133/0.02 + date + echo Sat Aug 13 16:20:00 UTC 2011 start iteration 3 Sat Aug 13 16:20:00 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, 646627 Write, 0 Other = 646627 Total Read 0b Written 9.8667Gb Total transferred 9.8667Gb (56.13Mb/sec) 3592.29 Requests/sec executed Test execution summary: total time: 180.0040s total number of events: 646627 total time taken by event execution: 2877.0309 per-request statistics: min: 0.13ms avg: 4.45ms max: 915.64ms approx. 95 percentile: 7.87ms Threads fairness: events (avg/stddev): 40414.1875/22844.79 execution time (avg/stddev): 179.8144/0.02 + date + echo Sat Aug 13 16:23:01 UTC 2011 start iteration 4 Sat Aug 13 16:23:01 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, 649613 Write, 0 Other = 649613 Total Read 0b Written 9.9123Gb Total transferred 9.9123Gb (56.389Mb/sec) 3608.88 Requests/sec executed Test execution summary: total time: 180.0041s total number of events: 649613 total time taken by event execution: 2876.8563 per-request statistics: min: 0.13ms avg: 4.43ms max: 949.90ms approx. 95 percentile: 10.87ms Threads fairness: events (avg/stddev): 40600.8125/25388.39 execution time (avg/stddev): 179.8035/0.02 + date + echo Sat Aug 13 16:26:01 UTC 2011 DONE TESTING direct-seqwr-16 Sat Aug 13 16:26:01 UTC 2011 DONE TESTING direct-seqwr-16 + exec