CPU时间

CPU时間是指中央处理器(CPU) 用于处理计算机程序或操作系统特定指令集的时间。CPU时间以秒作为单位计量。有时将 CPU时间转换为CPU容量的百分比（即CPU使用率）会會很有用。

• Thimmannagari, Chandra. CPU Design: Answers to Frequently Asked Questions. Springer. 2005-01-01: 68. ISBN 0-387-23799-2.  含有內容需登入查看的頁面 (link)

• Processor And CPU Time. The GNU C Library. 2014-02-09 [2014-08-05]. 

• clock - report CPU time used. The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition. [2014-08-05]. 
• getrusage - get information about resource utilization. The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2004 Edition. [2014-08-05].