转自:http://blog.csdn.net/fcoolx/article/details/4412196

select

Process is blocked in the select(2) syscall. Usually means it's waiting for external input (network, terminal, file updated, things like that). select only supports waiting for something related to a file descriptor (e.g., socket, tty, vnode).

 
nanslp

Process is blocked in the nanosleep(2) syscall, which is an explicit request to pause for a certain amount of time. Hard to generalize this one. It should be infrequent, or it might be used by something implementing its own polling.

 
kserel

Process is blocked waiting for an event to trigger a KSE upcall. This isn't easy to explain in a few words, but you can read kse(2) for most of the relevant details. Usually means the process is waiting for external input (similar to select).

 
RUN

Process is ready to run but has been suspended while another process is running.

 
pause

Process is blocked in the pause(2) or sigsuspend(2) syscall. It might be waiting for a signal, or you might see this if another thread is running and the main thread is waiting for all other threads to end.

 
lockf

Process is blocked waiting for a file lock to be released. Could be an flock(2) lock or an fcntl(2)/F_SETLK record lock.

 
kqread

Process is blocked in the kqueue(2) syscall. This is similar to select(2)--waiting for external input. kqueue is more efficient than select and supports several other events that can be waited on.

 
sbwait

Process is waiting for a socket buffer to be filled or emptied.

 
pipered

Process is waiting for data to arrive on a pipe ("rd" is short for read).

tips:

引用自:http://www.webhostingtalk.com/showthread.php?t=583672

FreeBSD Top States的更多相关文章

  1. 【8.0.0_r4】AMS分析(十七)(ActivityManagerService.java下)

    代码位于frameworks/base/services/core/java/com/android/server/am/,一共有七十个文件. Java源码位于package com.android. ...

  2. 【转】Linux Top 命令解析 比较详细

    TOP命令是Linux下常用的性能分析工具,能够实时显示系统中各个进程的资源占用状况.   TOP是一个动态显示过程,即可以通过用户按键来不断刷新当前状态.如果在前台执行该命令,它将独占前台,直到用户 ...

  3. Linux Top 命令解析 比较详细

    [尊重原创文章出自:http://www.jb51.net/LINUXjishu/34604.html] TOP是一个动态显示过程,即可以通过用户按键来不断刷新当前状态.如果在前台执行该命令,它将独占 ...

  4. Top 10 Universities for Artificial Intelligence

    1. Massachusetts Institute of Technology, Cambridge, MA Massachusetts Institute of Technology is a p ...

  5. FreeBSD 10 发布

    发行注记:http://www.freebsd.org/releases/10.0R/relnotes.html 下文翻译中... 主要有安全问题修复.新的驱动与硬件支持.新的命名/选项.主要bug修 ...

  6. Codeforces Round #327 (Div. 2) E. Three States

    题目链接: 题目 E. Three States time limit per test:5 seconds memory limit per test:512 megabytes 问题描述 The ...

  7. Linux中监控命令top命令使用方法详解

    收集了两篇关于介绍Linux中监控命令top命令的详细使用方法的文章.总的来说,top命令主要用来查看Linux系统的各个进程和系统资源占用情况,在监控Linux系统性能方面top显得非常有用,下面就 ...

  8. TOP命令详解

    TOP是一个动态显示过程,即可以通过用户按键来不断刷新当前状态.如果在前台执行该命令,它将独占前台,直到用户终止该程序为止.比较准确的说,top命令提供了实时的对系统处理器的状态监视.它将显示系统中C ...

  9. top工具

    top 显示进程所占系统资源 能够实时显示系统中各个进程的资源占用状况,类似于Windows的任务管理器. top命令打印出了很多信息,包括系统负载(loadaverage).进程数(Tasks).c ...

随机推荐

  1. 8VC Venture Cup 2016 - Elimination Round G. Raffles 线段树

    G. Raffles 题目连接: http://www.codeforces.com/contest/626/problem/G Description Johnny is at a carnival ...

  2. 使用eclipse远程调试weblogic

    配置weblogic远程调试之前,需要做这几个工作:      1) 安装weblogic服务器,然后创建一个域:     2) 安装eclipse集成IDE:     3) eclipse中包含发布 ...

  3. 【荐】利用NAT、Host-Only双虚拟网卡,实现Virtual Box中CentOS5.x联网

    一.虚拟机与主机互联,通常有三种方式,详细介绍请看: VMware虚拟机三种网络模式(Bridged,Nat,Host-only)区别详解 二.通过网络共享,Host-Only联网,详细案例请看: W ...

  4. Vue 小项目的最佳实践

    项目简介 目前一期只是为App内某个模块资讯模块文章的分享和APP下载,后续还会有更多的功能,为了项目可扩展.可伸缩结合了我以前的实践搭建了此项目项目地址,如果这个简单的项目能给您带来帮助请给小哥哥⭐ ...

  5. socket心跳包机制实践与理解

    实现Socket心跳包主要分为两大类,第一采用tcp自带的KeepAlive,第二是自定义心跳包,恰巧我在产品VICA中都使用过,下面就这两种心跳包机制谈谈个人的理解与感受. 首先第一种KeepAli ...

  6. Sqlserver数据库还原.bak文件失败的两个问题

    一.SQL Server数据库备份还原后,在数据库名称后会出现“受限制访问”字样      解决方案:将数据库限制访问改为:SINGLE_USER 数据库-->属性-->选项-->状 ...

  7. Go -- FileManage 自建云盘

    一.介绍 Caddy,用Go写的一款相当优秀的Web服务器软件,它有不少很有特色的功能,国内目前来说用的不多,不过也逐渐有越来越多的人知道了,它有个特色的插件功能,其中一款插件是FileManager ...

  8. iOS:iOS中的几种动画

    本文来自收藏,感谢原创博主. iOS中的动画 摘要 本文主要介绍核iOS中的动画:核心动画Core Animation, UIView动画, Block动画, UIImageView的帧动画. 核心动 ...

  9. LINUX提权笔记

    没啥技术含量,一种思路,让某些得到root权限webshell的童鞋可以快点拿到权限. 某日拿到某站webshell,RedHat 系统,Tomcat程序是root身份启动的,webshell当然也拥 ...

  10. Android APP内存优化之图片优化

    网上有很多大拿分享的关于Android性能优化的文章,主要是通过各种工具分析,使用合理的技巧优化APP的体验,提升APP的流畅度,但关于内存优化的文章很少有看到.在Android设备内存动不动就上G的 ...