= 2012-08-26 = {{{ root@hadoop:~# hadoop jar hadoop-test.jar TestDFSIO -write -nrFiles 10 -fileSize 10000 }}} {{{ 12/08/25 23:32:37 INFO mapred.FileInputFormat: ----- TestDFSIO ----- : write 12/08/25 23:32:37 INFO mapred.FileInputFormat: Date & time: Sat Aug 25 23:32:37 CST 2012 12/08/25 23:32:37 INFO mapred.FileInputFormat: Number of files: 10 12/08/25 23:32:37 INFO mapred.FileInputFormat: Total MBytes processed: 10000 12/08/25 23:32:37 INFO mapred.FileInputFormat: Throughput mb/sec: 13.787683462363072 12/08/25 23:32:37 INFO mapred.FileInputFormat: Average IO rate mb/sec: 13.81775188446045 12/08/25 23:32:37 INFO mapred.FileInputFormat: IO rate std deviation: 0.6458794219153966 12/08/25 23:32:37 INFO mapred.FileInputFormat: Test exec time sec: 101.908 12/08/25 23:46:33 INFO mapred.FileInputFormat: ----- TestDFSIO ----- : write 12/08/25 23:46:33 INFO mapred.FileInputFormat: Date & time: Sat Aug 25 23:46:33 CST 2012 12/08/25 23:46:33 INFO mapred.FileInputFormat: Number of files: 10 12/08/25 23:46:33 INFO mapred.FileInputFormat: Total MBytes processed: 100000 12/08/25 23:46:33 INFO mapred.FileInputFormat: Throughput mb/sec: 13.792156069831341 12/08/25 23:46:33 INFO mapred.FileInputFormat: Average IO rate mb/sec: 13.806739807128906 12/08/25 23:46:33 INFO mapred.FileInputFormat: IO rate std deviation: 0.44646340835488985 12/08/25 23:46:33 INFO mapred.FileInputFormat: Test exec time sec: 783.54 12/08/25 23:50:51 INFO mapred.FileInputFormat: ----- TestDFSIO ----- : write 12/08/25 23:50:51 INFO mapred.FileInputFormat: Date & time: Sat Aug 25 23:50:51 CST 2012 12/08/25 23:50:51 INFO mapred.FileInputFormat: Number of files: 18 12/08/25 23:50:51 INFO mapred.FileInputFormat: Total MBytes processed: 18000 12/08/25 23:50:51 INFO mapred.FileInputFormat: Throughput mb/sec: 10.154976220430683 12/08/25 23:50:51 INFO mapred.FileInputFormat: Average IO rate mb/sec: 10.385100364685059 12/08/25 23:50:51 INFO mapred.FileInputFormat: IO rate std deviation: 1.6564462731251788 12/08/25 23:50:51 INFO mapred.FileInputFormat: Test exec time sec: 138.842 }}}