测试系统盘根目录root 写入
time dd if=/dev/zero of=/root/test.file bs=2G count=2 oflag=direct
测试系统盘根目录root 读取
time dd if=/root/test.file of=/dev/null bs=2G iflag=direct
测试数据盘data 写入
time dd if=/dev/zero of=/data/test.file bs=2G count=2 oflag=direct
测试数据盘data 读取
time dd if=/data/test.file of=/dev/null bs=2G iflag=direct
要测试哪个盘就进入哪个盘所挂在的目录
例如 测试系统盘,就再root根目录执行
写入测试,使用10G文件
time dd if=/dev/zero of=swapfile bs=1024 count=10485760
读取测试,使用10G文件
time dd if=swapfile of=/dev/null bs=1024
或者要测试数据盘,数据盘挂载再data目录
就先进入data目录再执行
cd /data
写入测试,使用10G文件
time dd if=/dev/zero of=swapfile bs=1024 count=10485760
读取测试,使用10G文件
time dd if=swapfile of=/dev/null bs=1024
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