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楼主 |
发表于 2011-11-4 00:27:27
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kvm.la 的20元 xen:
root@MyHost:~#
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, 1.68498 s, 159 MB/s
root@MyHost:~# 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, 7.37745 s, 36.4 MB/s
root@MyHost:~# 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, 1.8195 s, 148 MB/s
root@MyHost:~# 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, 7.50618 s, 35.8 MB/s
root@MyHost:~# 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, 2.11267 s, 127 MB/s
root@MyHost:~# 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, 7.48456 s, 35.9 MB/s |
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