从DBA的角度来说，有时候需要考虑CPU的利用率的问题。那个服务器上有多少个CPU和利用率情况如何就是要考虑的问题了。

查看有多少个CPU：

#psrinfo -v

结果显示如下：

Status of processor 0 as of: 07/28/05 11:24:23
Processor has been on-line since 05/27/05 17:43:26.
The sparcv9 processor operates at 900 MHz,
and has a sparcv9 floating point processor.
Status of processor 1 as of: 07/28/05 11:24:23
Processor has been on-line since 05/27/05 17:43:26.
The sparcv9 processor operates at 900 MHz,
and has a sparcv9 floating point processor.
Status of processor 2 as of: 07/28/05 11:24:23
Processor has been on-line since 05/27/05 17:43:26.
The sparcv9 processor operates at 900 MHz,
and has a sparcv9 floating point processor.
Status of processor 3 as of: 07/28/05 11:24:23
Processor has been on-line since 05/27/05 17:43:12.
The sparcv9 processor operates at 900 MHz,
and has a sparcv9 floating point processor.

表明是有四颗CPU跑在该服务器上

查看CPU的利用率：

#top

or

#mpstat

均可