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本帖最后由 yjd333 于 2012-11-02 16:57 编辑
time dd if=./linux_11gR2_database_2of2.zip of=/2.zip bs=64k
3006+0 records in
3005+0 records out
196935680 bytes (197 MB) copied, 12.5476 seconds, 15.7 MB/s
real 0m12.549s
user 0m0.000s
sys 0m0.265s
------------------------------------大文件测试才准确。
480+1 records in
480+1 records out
31488512 bytes (31 MB) copied, 0.0475034 seconds, 663 MB/s
real 0m6.458s
user 0m0.003s
sys 0m0.056s
[root@xtxkj yjd]# time dd if=./xx.rar of=/2.rar bs=64k
480+1 records in
480+1 records out
31488512 bytes (31 MB) copied, 0.0395769 seconds, 796 MB/s
real 0m7.129s
user 0m0.001s
sys 0m0.048s
[root@xtxkj yjd]# time dd if=./xx.rar of=/2.rar bs=64k
480+1 records in
480+1 records out
31488512 bytes (31 MB) copied, 0.0477004 seconds, 660 MB/s
real 0m7.768s
user 0m0.001s
sys 0m0.053s
[root@xtxkj yjd]# time dd if=./xx.rar of=/2.rar bs=64k
480+1 records in
480+1 records out
31488512 bytes (31 MB) copied, 0.03862 seconds, 815 MB/s
real 0m0.293s
user 0m0.001s
sys 0m0.049s
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