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发表于 2011-10-2 17:42:42
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lnmp0.7-full]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 4.13218 s, 65.0 MB/s
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lnmp0.7-full]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 3.85632 s, 69.6 MB/s
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lnmp0.7-full]# dd if=/dev/zero of=test bs=64k count=16k conv=fdatasync
16384+0 records in
16384+0 records out
1073741824 bytes (1.1 GB) copied, 3.03091 s, 354 MB/s |
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