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博客园 - 笑清风

IDEA 2025.2 Maven 在windows下编译打包中文乱码解决方案 milvus相关概念 milvus介绍 Mockito之doThrow 关于行为面试法——STAR JVM 内存分析工具 MAT 的深度讲解与实践——入门篇《转》 notepad++删除包含指定字符串的行(正则) JVM指令码表 Hadoop家族成员概述 轻松把玩HttpClient之封装HttpClient工具类 Base64 SOAP1.1&SOAP1.2 画图解释SQL联合语句 Elasticsearch相关资源 SQL Server 数据类型映射 SQL Server类型的对应关系 Rethrowing exceptions and preserving the full call stack trace The CLR's Thread Pool .Net下获取程序路径的方法
linux top 中的time+
笑清风 · 2020-10-20 · via 博客园 - 笑清风

linux top命令的TIME/TIME+值

top命令的TIME/TIME+是指的进程所使用的CPU时间,不是进程启动到现在的时间,因此,如果一个进程使用的cpu很少,那即使这个进程已经存在N长时间,TIME/TIME+也是很小的数值。

此外,如果你的系统有多个CPU,或者是多核CPU的话,那么,进程占用多个cpu的时间是累加的。

top的manual page:http://linux.die.net/man/1/top
看看他的帮助说明:
l: TIME — CPU Time
Total CPU time the task has used since it started. When ‘Cumulative mode’ is On, each process is listed with the cpu time that it and its dead children has used. You toggle ‘Cumulative mode’ with ‘S’, which is a command-line option and an interactive command. See the ‘S’ interactive command for additional information regarding this mode.
m: TIME+ — CPU Time, hundredths
The same as ‘TIME’, but reflecting more granularity through hundredths of a second.

2:32.45代表多长时间啊

从右到左分别是百分之一秒,十分之一秒,秒,十秒,分钟

这个就是2分钟,30秒,2秒,十分之4秒,百分之5秒,是按位来计算的。

来源于:https://blog.csdn.net/xiaocao9903/article/details/19914191