+ date + echo Sat Aug 13 23:25:05 UTC 2011 TESTING direct-rndrw-16 Sat Aug 13 23:25:05 UTC 2011 TESTING direct-rndrw-16 + date + echo Sat Aug 13 23:25:05 UTC 2011 start iteration 1 Sat Aug 13 23:25:05 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! Time limit exceeded, exiting... (last message repeated 15 times) Done. Operations performed: 44713 Read, 29814 Write, 0 Other = 74527 Total Read 698.64Mb Written 465.84Mb Total transferred 1.1372Gb (6.4642Mb/sec) 413.71 Requests/sec executed Test execution summary: total time: 180.1433s total number of events: 74527 total time taken by event execution: 2882.1930 per-request statistics: min: 0.00ms avg: 38.67ms max: 6744.23ms approx. 95 percentile: 234.85ms Threads fairness: events (avg/stddev): 4657.9375/197.45 execution time (avg/stddev): 180.1371/0.00 + date + echo Sat Aug 13 23:28:05 UTC 2011 start iteration 2 Sat Aug 13 23:28:05 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: 50 pos: 1677688832 errno = 0 () (last message repeated 1 times) Time limit exceeded, exiting... (last message repeated 13 times) Done. Operations performed: 44673 Read, 29773 Write, 0 Other = 74446 Total Read 698.02Mb Written 465.2Mb Total transferred 1.136Gb (6.4539Mb/sec) 413.05 Requests/sec executed Test execution summary: total time: 180.2347s total number of events: 74446 total time taken by event execution: 2748.4107 per-request statistics: min: 0.00ms avg: 36.92ms max: 6944.25ms approx. 95 percentile: 221.20ms Threads fairness: events (avg/stddev): 4652.8750/886.52 execution time (avg/stddev): 171.7757/29.70 + date + echo Sat Aug 13 23:31:05 UTC 2011 start iteration 3 Sat Aug 13 23:31:05 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: 42952 Read, 28624 Write, 0 Other = 71576 Total Read 671.12Mb Written 447.25Mb Total transferred 1.0922Gb (6.1984Mb/sec) 396.70 Requests/sec executed Test execution summary: total time: 180.4285s total number of events: 71576 total time taken by event execution: 2883.0831 per-request statistics: min: 0.00ms avg: 40.28ms max: 6875.43ms approx. 95 percentile: 231.22ms Threads fairness: events (avg/stddev): 4473.5000/170.66 execution time (avg/stddev): 180.1927/0.12 + date + echo Sat Aug 13 23:34:06 UTC 2011 start iteration 4 Sat Aug 13 23:34:06 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: 63 pos: 1677705216 errno = 0 () FATAL: Failed to read file! file: 18 pos: 1677688832 errno = 0 () FATAL: Failed to read file! file: 45 pos: 1677705216 errno = 0 () FATAL: Failed to read file! file: 18 pos: 1677557760 errno = 0 () Time limit exceeded, exiting... (last message repeated 11 times) Done. Operations performed: 43789 Read, 29185 Write, 0 Other = 72974 Total Read 684.2Mb Written 456.02Mb Total transferred 1.1135Gb (6.322Mb/sec) 404.61 Requests/sec executed Test execution summary: total time: 180.3584s total number of events: 72974 total time taken by event execution: 2560.2045 per-request statistics: min: 0.00ms avg: 35.08ms max: 6622.83ms approx. 95 percentile: 208.97ms Threads fairness: events (avg/stddev): 4560.8750/1368.02 execution time (avg/stddev): 160.0128/46.58 + date + echo Sat Aug 13 23:37:06 UTC 2011 DONE TESTING direct-rndrw-16 Sat Aug 13 23:37:06 UTC 2011 DONE TESTING direct-rndrw-16 + exec