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发表于 2012-2-22 16:31:24
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root@host:~# dd if=/dev/zero of=test.bin bs=64k count=4k conv=fdatasync && rm -r f 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, 1.48298 s, 181 MB/s
root@host:~# dd if=/dev/zero of=test.bin bs=64k count=4k oflag=dsync && rm -rf t est.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 4.50589 s, 59.6 MB/s
root@host:~# dd if=/dev/zero of=test.bin bs=64k count=4k conv=fdatasync && rm -r f test.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 1.40463 s, 191 MB/s
root@host:~# dd if=/dev/zero of=test.bin bs=64k count=4k oflag=dsync && rm -rf t est.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 4.70855 s, 57.0 MB/s
root@host:~# dd if=/dev/zero of=test.bin bs=64k count=4k conv=fdatasync && rm -r f test.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 1.51558 s, 177 MB/s
root@host:~# dd if=/dev/zero of=test.bin bs=64k count=4k oflag=dsync && rm -rf t est.bin
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 4.71793 s, 56.9 MB/s |
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