hdparm

测试硬盘和内容IO

wget http://ncu.dl.sourceforge.net/project/hdparm/hdparm/hdparm-9.56.tar.gz

tar zxvf hdparm-9.56.tar.gz

cd hdparm-9.56

make && make install

hdparm -t —direct /dev/sda

内存与硬盘的读写速度

hdparm -Tt /dev/sda

/dev/sda:

 Timing cached reads:   10994 MB in  2.00 seconds = 5503.42 MB/sec

 Timing buffered disk reads: 666 MB in  3.04 seconds = 218.97 MB/sec