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标题: freebsd下测试IO性能 [打印本页]

作者: 民工三代 时间: 2012-6-29 23:30
标题: freebsd下测试IO性能
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      512          # sectorsize
      16106127360    # mediasize in bytes (15G)
      31457280       # mediasize in sectors
      0             # stripesize
      0             # stripeoffset
      31207          # Cylinders according to firmware.
      16             # Heads according to firmware.
      63             # Sectors according to firmware.
      QM00001       # Disk ident.

I/O command overhead:
      time to read 10MB block    0.128786 sec    = 0.006 msec/sector
      time to read 20480 sectors 6.504964 sec    = 0.318 msec/sector
      calculated command overhead                   = 0.311 msec/sector

Seek times:
      Full stroke:    250 iter in 3.279117 sec = 13.116 msec
      Half stroke:    250 iter in 2.800613 sec = 11.202 msec
      Quarter stroke: 500 iter in 4.077175 sec = 8.154 msec
      Short forward: 400 iter in 2.126961 sec = 5.317 msec
      Short backward: 400 iter in 2.870169 sec = 7.175 msec
      Seq outer:    2048 iter in 0.768139 sec = 0.375 msec
      Seq inner:    2048 iter in 0.971410 sec = 0.474 msec
Transfer rates:
      outside:    102400 kbytes in 2.052193 sec = 49898 kbytes/sec
      middle:       102400 kbytes in 1.158544 sec = 88387 kbytes/sec
      inside:       102400 kbytes in 3.203296 sec = 31967 kbytes/sec

作者: cisco 时间: 2012-6-29 23:31
我都快忘了还有freebsd这个系统了。

作者: tobeychan 时间: 2012-6-29 23:49
怎么搞

作者: loveminds 时间: 2012-6-30 00:23

cisco 发表于 2012-6-29 23:31
我都快忘了还有freebsd这个系统了。

太少国内vps支持

作者: tobeychan 时间: 2012-7-1 21:22
没什什么用

作者: doogle 时间: 2012-7-1 21:32
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