

imnpc 发表于 2012-6-20 12:07
[root@ah1 ~]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync && rm -rf test
4096+0 records i ...
[root@vps256 ~]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync && rm -rf test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 59.9322 seconds, 4.5 MB/s


[root@vps256 /]# dd if=/dev/zero of=test bs=64k count=4k oflag=dsync && rm -rf test
4096+0 records in
4096+0 records out
268435456 bytes (268 MB) copied, 425.843 seconds, 630 kB/s
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