建设工作站服务器

1、测试盘纯写性能dd if=/dev/zero of=/file

[oracle@11g ~]$ touch ddTest

[ Oracle @ 11g~] $ timed dif=/dev/zero of=/home/Oracle/ddtestbs=1k count=1024

1024 0记录在

1024 0记录输出

1048576bytes(1.0MB ) copied，0.0261858 s，40.0 MB/s

real0m0.029s

user0m0.009s

sys0m0.017s

[oracle@11g ~]$ du -h ddTest

1.0MDD测试

2、测试盘纯读取性能dd if=/file of=/dev/null

[ Oracle @ 11g~] $ timed dif=/dev/zero ^ cf=/home/Oracle/ddtestbs=1k count=1024

[oracle@11g ~]$ touch test1

[ Oracle @ 11g~] $ timed dif=/home/Oracle/test1 of=/dev/null bs=1k count=1024

0 0 records in

0 0 records out

0bytes(0b ) copied，0.000124694 s，0.0 kB/s

real0m0.001s

user0m0.000s

sys0m0.000s

[ Oracle @ 11g~] $ du-h/home/Oracle/test 1

0/home/oracle/test1

3、测试磁盘读写性能dd if=/file1 of=/file2

[ Oracle @ 11g~] $ timed dif=/home/Oracle/test1 of=/home/Oracle/testbs=1k count=1024

0 0 records in

0 0 records out

0bytes(0b ) copied，0.000124904 s，0.0 kB/s

real0m0.002s

user0m0.001s

sys0m0.000s

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