+ date + echo Sun Aug 14 00:32:31 UTC 2011 TESTING direct-rndrw-16 Sun Aug 14 00:32:31 UTC 2011 TESTING direct-rndrw-16 + date + echo Sun Aug 14 00:32:31 UTC 2011 start iteration 1 Sun Aug 14 00:32:31 UTC 2011 start iteration 1 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=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 r/w test Threads started! FATAL: Failed to read file! file: 38 pos: 1677541376 errno = 0 () FATAL: Failed to read file! file: 55 pos: 1677688832 errno = 0 () Time limit exceeded, exiting... (last message repeated 13 times) Done. Operations performed: 28062 Read, 18708 Write, 0 Other = 46770 Total Read 438.47Mb Written 292.31Mb Total transferred 730.78Mb (4.0566Mb/sec) 259.62 Requests/sec executed Test execution summary: total time: 180.1471s total number of events: 46770 total time taken by event execution: 2726.0123 per-request statistics: min: 0.00ms avg: 58.29ms max: 6493.67ms approx. 95 percentile: 238.96ms Threads fairness: events (avg/stddev): 2923.1250/615.51 execution time (avg/stddev): 170.3758/34.48 + date + echo Sun Aug 14 00:35:32 UTC 2011 start iteration 2 Sun Aug 14 00:35:32 UTC 2011 start iteration 2 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --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 r/w test Threads started! FATAL: Failed to read file! file: 64 pos: 1677688832 errno = 0 () FATAL: Failed to read file! file: 42 pos: 1677672448 errno = 0 () FATAL: Failed to read file! file: 5 pos: 1677705216 errno = 0 () FATAL: Failed to read file! file: 16 pos: 1677606912 errno = 0 () Time limit exceeded, exiting... (last message repeated 11 times) Done. Operations performed: 28833 Read, 19222 Write, 0 Other = 48055 Total Read 450.52Mb Written 300.34Mb Total transferred 750.86Mb (4.1695Mb/sec) 266.85 Requests/sec executed Test execution summary: total time: 180.0827s total number of events: 48055 total time taken by event execution: 2399.6311 per-request statistics: min: 0.00ms avg: 49.94ms max: 5396.86ms approx. 95 percentile: 225.01ms Threads fairness: events (avg/stddev): 3003.4375/1165.20 execution time (avg/stddev): 149.9769/58.14 + date + echo Sun Aug 14 00:38:32 UTC 2011 start iteration 3 Sun Aug 14 00:38:32 UTC 2011 start iteration 3 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --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 r/w test Threads started! Time limit exceeded, exiting... (last message repeated 15 times) Done. Operations performed: 29058 Read, 19373 Write, 0 Other = 48431 Total Read 454.03Mb Written 302.7Mb Total transferred 756.73Mb (4.2018Mb/sec) 268.91 Requests/sec executed Test execution summary: total time: 180.0981s total number of events: 48431 total time taken by event execution: 2880.7508 per-request statistics: min: 0.00ms avg: 59.48ms max: 6125.18ms approx. 95 percentile: 275.88ms Threads fairness: events (avg/stddev): 3026.9375/127.36 execution time (avg/stddev): 180.0469/0.03 + date + echo Sun Aug 14 00:41:32 UTC 2011 start iteration 4 Sun Aug 14 00:41:32 UTC 2011 start iteration 4 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --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 r/w test Threads started! FATAL: Failed to read file! file: 47 pos: 1677459456 errno = 0 () Time limit exceeded, exiting... (last message repeated 14 times) Done. Operations performed: 29148 Read, 19426 Write, 0 Other = 48574 Total Read 455.44Mb Written 303.53Mb Total transferred 758.97Mb (4.2126Mb/sec) 269.60 Requests/sec executed Test execution summary: total time: 180.1680s total number of events: 48574 total time taken by event execution: 2838.9453 per-request statistics: min: 0.00ms avg: 58.45ms max: 7025.28ms approx. 95 percentile: 262.59ms Threads fairness: events (avg/stddev): 3035.8750/178.05 execution time (avg/stddev): 177.4341/10.27 + date + echo Sun Aug 14 00:44:32 UTC 2011 DONE TESTING direct-rndrw-16 Sun Aug 14 00:44:32 UTC 2011 DONE TESTING direct-rndrw-16 + exec