+ date + echo Sat Aug 13 23:12:59 UTC 2011 TESTING direct-rndrw-8 Sat Aug 13 23:12:59 UTC 2011 TESTING direct-rndrw-8 + date + echo Sat Aug 13 23:12:59 UTC 2011 start iteration 1 Sat Aug 13 23:12:59 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: 55 pos: 1677705216 errno = 0 () FATAL: Failed to read file! file: 57 pos: 1677574144 errno = 0 () Time limit exceeded, exiting... (last message repeated 5 times) Done. Operations performed: 42386 Read, 28254 Write, 0 Other = 70640 Total Read 662.28Mb Written 441.47Mb Total transferred 1.0779Gb (6.1255Mb/sec) 392.03 Requests/sec executed Test execution summary: total time: 180.1897s total number of events: 70640 total time taken by event execution: 1363.2046 per-request statistics: min: 0.00ms avg: 19.30ms max: 5094.91ms approx. 95 percentile: 117.55ms Threads fairness: events (avg/stddev): 8830.0000/1222.99 execution time (avg/stddev): 170.4006/17.81 + date + echo Sat Aug 13 23:15:59 UTC 2011 start iteration 2 Sat Aug 13 23:15:59 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: 42 pos: 1677672448 errno = 0 () Time limit exceeded, exiting... (last message repeated 6 times) Done. Operations performed: 41165 Read, 27446 Write, 0 Other = 68611 Total Read 643.2Mb Written 428.84Mb Total transferred 1.0469Gb (5.9288Mb/sec) 379.44 Requests/sec executed Test execution summary: total time: 180.8205s total number of events: 68611 total time taken by event execution: 1426.7179 per-request statistics: min: 0.00ms avg: 20.79ms max: 6175.76ms approx. 95 percentile: 122.76ms Threads fairness: events (avg/stddev): 8576.3750/450.06 execution time (avg/stddev): 178.3397/6.49 + date + echo Sat Aug 13 23:19:00 UTC 2011 start iteration 3 Sat Aug 13 23:19:00 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! FATAL: Failed to read file! file: 18 pos: 1677590528 errno = 0 () FATAL: Failed to read file! file: 12 pos: 1677574144 errno = 0 () FATAL: Failed to read file! file: 10 pos: 1677656064 errno = 0 () Time limit exceeded, exiting... (last message repeated 4 times) Done. Operations performed: 42141 Read, 28091 Write, 0 Other = 70232 Total Read 658.45Mb Written 438.92Mb Total transferred 1.0717Gb (6.0905Mb/sec) 389.79 Requests/sec executed Test execution summary: total time: 180.1796s total number of events: 70232 total time taken by event execution: 1358.6106 per-request statistics: min: 0.00ms avg: 19.34ms max: 5832.12ms approx. 95 percentile: 118.82ms Threads fairness: events (avg/stddev): 8779.0000/1323.64 execution time (avg/stddev): 169.8263/25.80 + date + echo Sat Aug 13 23:22:00 UTC 2011 start iteration 4 Sat Aug 13 23:22:00 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! Time limit exceeded, exiting... (last message repeated 7 times) Done. Operations performed: 41993 Read, 27990 Write, 0 Other = 69983 Total Read 656.14Mb Written 437.34Mb Total transferred 1.0679Gb (5.9272Mb/sec) 379.34 Requests/sec executed Test execution summary: total time: 184.4872s total number of events: 69983 total time taken by event execution: 1454.0823 per-request statistics: min: 0.00ms avg: 20.78ms max: 5739.25ms approx. 95 percentile: 126.08ms Threads fairness: events (avg/stddev): 8747.8750/320.47 execution time (avg/stddev): 181.7603/1.57 + date + echo Sat Aug 13 23:25:05 UTC 2011 DONE TESTING direct-rndrw-8 Sat Aug 13 23:25:05 UTC 2011 DONE TESTING direct-rndrw-8 + exec