20十一/081
SAS vs SATA2 读写速度测试
两机器,CPU及其它硬件基本一致
复制文件
命令:time cp ubuntu-8.10-server-i386.iso* soft/
SAS 1.5万转硬盘
real 0m5.739s
user 0m0.010s
sys 0m3.160s
SATA 7200转硬盘
real 0m48.345s
user 0m0.050s
sys 0m7.750s
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压缩两个600M的ISO文件
命令:time tar cjvf ubuntu-8.10-server-i386.iso* a.tar.gz
SAS 1.5万转硬盘
real 3m5.572s
user 3m3.770s
sys 0m2.430s
SATA 7200转硬盘
real 8m26.911s
user 8m9.830s
sys 0m5.860s
压过程中,用top看CPU占用,都只有一个CPU在跑,不知道怎么使tar命令使用多核(/线程)
各raid方式的数据,我明天测试后补充.
2011年12月29日 22:21
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