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又一次!测试脚本的时候卡顿了,就忍不住DD一下:
root@MyVPS:~#
dd if=/dev/zero of=test.bin bs=64k count=4k conv=fdatasync && rm -rf test.bin
dd if=/dev/zero of=test.bin bs=64k count=4k oflag=dsync && rm -rf test.bin
dd if=/dev/zero of=test.bin bs=64k count=4k conv=fdatasync && rm -rf test.bin
dd if=/dev/zero of=test.bin bs=64k count=4k oflag=dsync && rm -rf test.bin
dd if=/dev/zero of=test.bin bs=64k count=4k conv=fdatasync && rm -rf test.bin
dd if=/dev/zero of=test.bin bs=64k count=4k oflag=dsync && rm -rf test.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 27.1401 s, 9.9 MB/s
root@MyVPS:~# dd if=/dev/zero of=test.bin bs=64k count=4k oflag=dsync && rm -rf test.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 64.7512 s, 4.1 MB/s
root@MyVPS:~# dd if=/dev/zero of=test.bin bs=64k count=4k conv=fdatasync && rm -rf test.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 25.263 s, 10.6 MB/s
root@MyVPS:~# dd if=/dev/zero of=test.bin bs=64k count=4k oflag=dsync && rm -rf test.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 65.9951 s, 4.1 MB/s
root@MyVPS:~# dd if=/dev/zero of=test.bin bs=64k count=4k conv=fdatasync && rm -rf test.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 31.4602 s, 8.5 MB/s
root@MyVPS:~# dd if=/dev/zero of=test.bin bs=64k count=4k oflag=dsync && rm -rf test.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 86.8114 s, 3.1 MB/s
我都只用这VPS测试脚本了,EMSVPS你还想咋样?
上一贴在这里:
http://www.pnr2.com/thread-86789-1-1.html
[ 本帖最后由 lazyzhu 于 2011-11-9 19:57 编辑 ] |
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