+ date + echo Sun Aug 14 00:09:08 UTC 2011 TESTING direct-rndrw-4 Sun Aug 14 00:09:08 UTC 2011 TESTING direct-rndrw-4 + date + echo Sun Aug 14 00:09:08 UTC 2011 start iteration 1 Sun Aug 14 00:09:08 UTC 2011 start iteration 1 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=4 --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: 4 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: 35 pos: 1677705216 errno = 0 () FATAL: Failed to read file! file: 50 pos: 1677656064 errno = 0 () Time limit exceeded, exiting... (last message repeated 1 times) Done. Operations performed: 29268 Read, 19513 Write, 0 Other = 48781 Total Read 457.31Mb Written 304.89Mb Total transferred 762.2Mb (4.221Mb/sec) 270.14 Requests/sec executed Test execution summary: total time: 180.5738s total number of events: 48781 total time taken by event execution: 568.8737 per-request statistics: min: 0.00ms avg: 11.66ms max: 6113.27ms approx. 95 percentile: 44.13ms Threads fairness: events (avg/stddev): 12195.2500/5432.09 execution time (avg/stddev): 142.2184/61.54 + date + echo Sun Aug 14 00:12:09 UTC 2011 start iteration 2 Sun Aug 14 00:12:09 UTC 2011 start iteration 2 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=4 --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: 4 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: 62 pos: 1677524992 errno = 0 () FATAL: Failed to read file! file: 38 pos: 1677688832 errno = 0 () FATAL: Failed to read file! file: 63 pos: 1677393920 errno = 0 () Time limit exceeded, exiting... Done. Operations performed: 27798 Read, 18532 Write, 0 Other = 46330 Total Read 434.34Mb Written 289.56Mb Total transferred 723.91Mb (4.0216Mb/sec) 257.38 Requests/sec executed Test execution summary: total time: 180.0057s total number of events: 46330 total time taken by event execution: 574.0250 per-request statistics: min: 0.00ms avg: 12.39ms max: 6268.22ms approx. 95 percentile: 46.16ms Threads fairness: events (avg/stddev): 11582.5000/3955.91 execution time (avg/stddev): 143.5062/41.36 + date + echo Sun Aug 14 00:15:09 UTC 2011 start iteration 3 Sun Aug 14 00:15:09 UTC 2011 start iteration 3 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=4 --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: 4 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: 34 pos: 1677606912 errno = 0 () FATAL: Failed to read file! file: 42 pos: 1677623296 errno = 0 () FATAL: Failed to read file! file: 53 pos: 1677672448 errno = 0 () FATAL: Failed to read file! file: 39 pos: 1677672448 errno = 0 () Done. Operations performed: 22623 Read, 15082 Write, 0 Other = 37705 Total Read 353.48Mb Written 235.66Mb Total transferred 589.14Mb (4.1575Mb/sec) 266.08 Requests/sec executed Test execution summary: total time: 141.7040s total number of events: 37705 total time taken by event execution: 373.8350 per-request statistics: min: 0.01ms avg: 9.91ms max: 6566.96ms approx. 95 percentile: 38.53ms Threads fairness: events (avg/stddev): 9426.2500/6288.01 execution time (avg/stddev): 93.4588/46.95 + date + echo Sun Aug 14 00:17:30 UTC 2011 start iteration 4 Sun Aug 14 00:17:30 UTC 2011 start iteration 4 + sysbench --test=fileio --file-total-size=100G --file-test-mode=rndrw --max-time=180 --max-requests=100000000 --num-threads=4 --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: 4 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: 58 pos: 1677606912 errno = 0 () Time limit exceeded, exiting... (last message repeated 2 times) Done. Operations performed: 29283 Read, 19521 Write, 0 Other = 48804 Total Read 457.55Mb Written 305.02Mb Total transferred 762.56Mb (4.2352Mb/sec) 271.06 Requests/sec executed Test execution summary: total time: 180.0516s total number of events: 48804 total time taken by event execution: 595.0995 per-request statistics: min: 0.00ms avg: 12.19ms max: 6213.16ms approx. 95 percentile: 48.87ms Threads fairness: events (avg/stddev): 12201.0000/4914.56 execution time (avg/stddev): 148.7749/54.11 + date + echo Sun Aug 14 00:20:31 UTC 2011 DONE TESTING direct-rndrw-4 Sun Aug 14 00:20:31 UTC 2011 DONE TESTING direct-rndrw-4 + exec