![]() | 1 tarsier 2013-05-03 12:02:43 +08:00 我的vr dd if=/dev/zero of=test.bin bs=1M count=100 cOnv=fdatasync 100+0 records in 100+0 records out 104857600 bytes (105 MB) copied, 0.221937 s, 472 MB/s |
![]() | 2 iZr 2013-05-03 12:36:36 +08:00 dd if=/dev/zero of=test.bin bs=1M count=100 cOnv=fdatasync 100+0 records in 100+0 records out 104857600 bytes (105 MB) copied, 0.436161 s, 240 MB/s |
![]() | 3 xdeng 2013-05-03 12:49:36 +08:00 他这个是没有限制的 时好时慢 最怕折腾帝 |
![]() | 4 zencoding 2013-05-03 12:57:43 +08:00 root@hk:~# dd if=/dev/zero of=test.bin bs=1M count=100 cOnv=fdatasync 100+0 records in 100+0 records out 104857600 bytes (105 MB) copied, 0.438553 s, 239 MB/s root@hk:~# dd if=/dev/zero of=test.bin bs=1M count=100 cOnv=fdatasync 100+0 records in 100+0 records out 104857600 bytes (105 MB) copied, 1.45601 s, 72.0 MB/s root@hk:~# dd if=/dev/zero of=test.bin bs=1M count=100 cOnv=fdatasync 100+0 records in 100+0 records out 104857600 bytes (105 MB) copied, 0.28446 s, 369 MB/s root@hk:~# dd if=/dev/zero of=test.bin bs=1M count=100 cOnv=fdatasync 100+0 records in 100+0 records out 104857600 bytes (105 MB) copied, 0.25484 s, 411 MB/s root@hk:~# dd if=/dev/zero of=test.bin bs=1M count=100 cOnv=fdatasync 100+0 records in 100+0 records out 104857600 bytes (105 MB) copied, 0.265704 s, 395 MB/s |
5 helloleo 2013-05-10 23:40:05 +08:00 dd if=/dev/zero of=test.bin bs=1M count=100 cOnv=fdatasync |
6 helloleo 2013-05-10 23:40:17 +08:00 ~ dd if=/dev/zero of=test.bin bs=1M count=100 cOnv=fdatasync 100+0 records in 100+0 records out 104857600 bytes (105 MB) copied, 0.615846 s, 170 MB/s |
![]() | 7 ericFork 2013-05-11 00:29:13 +08:00 其实用 SAN 的没见过性能好到哪去的 |
![]() | 8 thinkxen 2013-05-11 00:43:35 +08:00 四台都是一个结果,同时测试的 dd if=/dev/zero of=test.bin bs=1M count=100 cOnv=fdatasync 100+0 records in 100+0 records out 104857600 bytes (105 MB) copied, 11.7144 seconds, 9.0 MB/s |