【转载】查看Linux进程CPU过高具体的线程堆栈(不中断程序)
具体的命令经常忘记，毕竟用的不是很多。为了避免去找备份一下
1、TOP命令，找到占用CPU最高的进程
$ top
top - 20:11:45 up 850 days, 1:18, 3 users, load average: 1.04, 1.01, 0.99
Tasks: 61 total, 1 running, 60 sleeping, 0 stopped, 0 zombie
Cpu(s): 1.4% us, 0.1% sy, 0.0% ni, 98.3% id, 0.1% wa, 0.0% hi, 0.2% si
Mem: 16418172k total, 15693376k used, 724796k free, 1146696k buffers
Swap: 10223608k total,0k used, 10223608k free, 12537692k cached
PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND
24714 ztgame16 0 1409m 1.2g 4252 S 99.6 7.4 2390:57 IMVChannelServe
1 root 16 0 4772 520 432 S 0.0 0.0 0:03.43 init
2 root RT 0 000 S 0.0 0.0 0:05.75 migration/0
3 root 34 19 000 S 0.0 0.0 5:22.97 ksoftirqd/0
4 root RT 0 000 S 0.0 0.0 0:07.90 migration/1
5 root 34 19 000 S 0.0 0.0 0:00.27 ksoftirqd/1
6 root RT 0 000 S 0.0 0.0 0:04.07 migration/2
7 root 34 19 000 S 0.0 0.0 0:00.47 ksoftirqd/2
8 root RT 0 000 S 0.0 0.0 0:04.00 migration/3
9 root 34 19 000 S 0.0 0.0 0:00.33 ksoftirqd/3
2、通过TOP -H -p 进程ID，找到具体的线程占用情况，Shift+H可以开启关闭线程显示
$ top -H -p 24714
top - 20:15:30 up 850 days, 1:22, 3 users, load average: 1.26, 1.09, 1.02
Tasks: 16 total, 1 running, 15 sleeping, 0 stopped, 0 zombie
Cpu(s): 24.8% us, 0.3% sy, 0.0% ni, 73.1% id, 0.0% wa, 0.0% hi, 1.8% si
Mem: 16418172k total, 15701376k used, 716796k free, 1146704k buffers
Swap: 10223608k total,0k used, 10223608k free, 12546048k cached
PID USER PR NI VIRT RES SHR S %CPU %MEMTIME+ COMMAND
24729 ztgame16 0 1409m 1.2g 4252 R 97.0 7.4 2307:22 IMVChannelServe
24721 ztgame15 0 1409m 1.2g 4252 S 2.0 7.4 84:22.40 IMVChannelServe
24714 ztgame16 0 1409m 1.2g 4252 S 0.0 7.4 0:03.80 IMVChannelServe
24716 ztgame15 0 1409m 1.2g 4252 S 0.0 7.4 0:00.00 IMVChannelServe
24717 ztgame15 0 1409m 1.2g 4252 S 0.0 7.4 0:00.04 IMVChannelServe
24718 ztgame15 0 1409m 1.2g 4252 S 0.0 7.4 0:00.00 IMVChannelServe
24719 ztgame15 0 1409m 1.2g 4252 S 0.0 7.4 0:00.08 IMVChannelServe
24720 ztgame15 0 1409m 1.2g 4252 S 0.0 7.4 0:00.01 IMVChannelServe
24722 ztgame15 0 1409m 1.2g 4252 S 0.0 7.4 0:00.00 IMVChannelServe
24723 ztgame16 0 1409m 1.2g 4252 S 0.0 7.4 0:00.00 IMVChannelServe
24724 ztgame15 0 1409m 1.2g 4252 S 0.0 7.4 0:00.01 IMVChannelServe
24725 ztgame15 0 1409m 1.2g 4252 S 0.0 7.4 0:09.83 IMVChannelServe
24726 ztgame15 0 1409m 1.2g 4252 S 0.0 7.4 0:00.00 IMVChannelServe
24727 ztgame15 0 1409m 1.2g 4252 S 0.0 7.4 0:00.76 IMVChannelServe
24728 ztgame16 0 1409m 1.2g 4252 S 0.0 7.4 0:00.53 IMVChannelServe
24730 ztgame16 0 1409m 1.2g 4252 S 0.0 7.4 2:42.18 IMVChannelServe
3、通过命令pstack 进程ID显示线程堆栈，LWP 24729对应线程ID的堆栈，就是占用CPU最高的堆栈，可以具体分析什么原因造成的。
$ pstack 24714
Thread 16 (Thread 1084229984 (LWP 24716)):
#0 0x00000039c5a901d5 in __nanosleep_nocancel () from /lib64/tls/libc.so.6
#1 0x00000039c5ac3058 in usleep () from /lib64/tls/libc.so.6
#2 0x00000000005ebe10 in zVerifyThread::run ()
#3 0x00000000005e9d29 in zThread::threadFunc ()
#4 0x00000039c6106137 in start_thread () from /lib64/tls/libpthread.so.0
#5 0x00000039c5ac9883 in clone () from /lib64/tls/libc.so.6
Thread 15 (Thread 1094719840 (LWP 24717)):
#0 0x00000039c5a901d5 in __nanosleep_nocancel () from /lib64/tls/libc.so.6
#1 0x00000039c5ac3058 in usleep () from /lib64/tls/libc.so.6
#2 0x00000000005ebe10 in zVerifyThread::run ()
#3 0x00000000005e9d29 in zThread::threadFunc ()
#4 0x00000039c6106137 in start_thread () from /lib64/tls/libpthread.so.0
#5 0x00000039c5ac9883 in clone () from /lib64/tls/libc.so.6
Thread 14 (Thread 1105209696 (LWP 24718)):
#0 0x00000039c5a901d5 in __nanosleep_nocancel () from /lib64/tls/libc.so.6
#1 0x00000039c5ac3058 in usleep () from /lib64/tls/libc.so.6
#2 0x00000000005ebe10 in zVerifyThread::run ()
#3 0x00000000005e9d29 in zThread::threadFunc ()
#4 0x00000039c6106137 in start_thread () from /lib64/tls/libpthread.so.0
#5 0x00000039c5ac9883 in clone () from /lib64/tls/libc.so.6
Thread 13 (Thread 1115699552 (LWP 24719)):
#0 0x00000039c5a901d5 in __nanosleep_nocancel () from /lib64/tls/libc.so.6
#1 0x00000039c5ac3058 in usleep () from /lib64/tls/libc.so.6
#2 0x00000000005ebe10 in zVerifyThread::run ()
#3 0x00000000005e9d29 in zThread::threadFunc ()
#4 0x00000039c6106137 in start_thread () from /lib64/tls/libpthread.so.0
#5 0x00000039c5ac9883 in clone () from /lib64/tls/libc.so.6
Thread 3 (Thread 1220598112 (LWP 24729)):
#0 0x00000039c5a71e87 in memset () from /lib64/tls/libc.so.6
#1 0x00000000004fa591 in ChannelTask::forwardToClientByMedia ()
#2 0x0000000000506220 in ChannelTask::parseClientMsg_Normal ()
#3 0x000000000051ef55 in ChannelTask::parseClientMsg ()
#4 0x000000000051f070 in ChannelTask::cmdMsgParse_Forward ()
#5 0x000000000051f1d1 in ChannelTask::cmdMsgParse ()
#6 0x000000000051f414 in ChannelTask::processCmd ()
#7 0x0000000000523ea8 in ChannelTaskManager::processCmd ()
#8 0x0000000000525ddd in ChannelTimeTick::run ()
#9 0x00000000005e9d29 in zThread::threadFunc ()
#10 0x00000039c6106137 in start_thread () from /lib64/tls/libpthread.so.0
#11 0x00000039c5ac9883 in clone () from /lib64/tls/libc.so.6
Thread 2 (Thread 1231087968 (LWP 24730)):
#0 0x00000039c610af8b in __lll_mutex_lock_wait ()
#1 0x0000000000000001 in ?? ()
#2 0x0000000000000065 in ?? ()
#3 0x00000039c6107d87 in pthread_mutex_lock () from /lib64/tls/libpthread.so.0
#4 0x0000003a500ae29e in operator delete () from /usr/lib64/libstdc++.so.6
#5 0x000000000053f59d in ChannelLoadClient::processCmd_DB ()
#6 0x00000000005986c9 in GameAppClient::processTaskCmd_DB ()
#7 0x00000039c5a901e3 in __nanosleep_nocancel () from /lib64/tls/libc.so.6
#8 0x0000000000000000 in ?? ()
Thread 1 (Thread 182894183104 (LWP 24714)):
#0 0x00000039c5ac9c5c in epoll_wait () from /lib64/tls/libc.so.6
#1 0x0000000000620cac in zTCPServer::accept ()
#2 0x00000000005f9c0d in zNetService::serviceCallback ()
#3 0x00000000005f89e3 in zService::main ()
#4 0x0000000000564298 in main ()
本文永久更新地址：http://www.linuxdiyf.com/linux/18227.html
【转载】查看Linux进程CPU过高具体的线程堆栈(不中断程序)的更多相关文章
- 查看Linux进程CPU过高具体的线程堆栈(不中断程序)
转自:http://blog.csdn.net/mergerly/article/details/47731305 1.TOP命令,找到占用CPU最高的进程 $ top top - 20:11:45 ...
- linux ps命令，查看某进程cpu和内存占用率情况， linux ps命令，查看进程cpu和内存占用率排序。 不指定
背景:有时需要单看某个进程的CPU及占用情况,有时需要看整体进程的一个占用情况.一. linux ps命令,查看某进程cpu和内存占用率情况[root@test vhost]# ps auxUSER ...
- Java进程CPU使用率高排查
Java进程CPU使用率高排查 生产java应用,CPU使用率一直很高,经常达到100%,通过以下步骤完美解决,分享一下.1.jps 获取Java进程的PID.2.jstack pid >> ...
- 查看linux服务器CPU相关
查看linux服务器CPU相关: 1.查看物理CPU个数 cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l 2.查看 ...
- 查看Linux服务器CPU总核数
下面介绍查看Linux服务器CPU总核数的方法. 通过/proc/cpuinfo可查看CPU个数及总核数. [root@kevin ~]# grep processor /proc/cpuinfo | ...
- linux查看某个进程CPU消耗较高的具体线程或程序的方法
目前我们的监控,可以发现消耗较高CPU的进程(阀值为3个CPU),通过监控我们可以找到消耗较高CPU的进程号: 通过进程号pid,我们在linux上可以通过top –H –p <pid> ...
- java进程CPU飙高
因为这段时间一直在弄监控,但是工作还是在进行中 因为机器不多,所以今天早上巡检了一下,看到一台生产机器上的CPU飙高 top
- JVM进程cpu飙高分析
在项目快速迭代中版本发布频繁 近期上线报错一个JVM导致服务器cpu飙高 但内存充足的原因现象. 对于耗内存的JVM程序来而言, 基本可以断定是线程僵死(死锁.死循环等)问题. 这里是纪录一下排 ...
- JVM 之 Linux定位CPU过高问题及优化
项目部署以后出行卡顿现象,所以对问题进行了排查,记录一下排查过程 (从CSDN编辑器贴过来的,图有水印) 1.找进程 top 可以发现,是Java进程导致的CPU过高,致使系统卡顿 2.找线程 ps ...
随机推荐
- rest_framework框架实现之（视图，路由，渲染器）
一视图 一 在前面我们使用视图时继承的时APIview from rest_framework.response import Response from rest_framework.paginat ...
- WebService发送 方法
public String disableSaleOut(JSONObject jsonObject) throws ServiceException, MalformedURLException, ...
- d3js 折线图+柱图
<!DOCTYPE html> <html> <body> <div id="vis"><svg></svg> ...
- 【基础】Linux软件安装方法
linux中wget .apt-get.yum rpm区别 wget 类似于迅雷,是一种下载工具, 通过HTTP.HTTPS.FTP三个最常见的TCP/IP协议下载,并可以使用HTTP代理 名字是Wo ...
- Robot Framework：Excel操作
robot framework 操作Excel需要安装库 ExcelLibrary pip install robotframework-ExcelLibrary 将ExcelLibrary 导入到r ...
- 二维差分前缀和——cf1202D(好题）
直接枚举每个点作为左上角是可以做的,但是写起来较麻烦 有一种较为简单的做法是对一列或一行统计贡献 比如某一行的B存在的区间是L,R那么就有三种情况 1.没有这样的区间,即一行都是W,此时这行对答案的贡 ...
- postgresql修改自增序列
----删除前先解除 id 对该序列的依赖ALTER TABLE tablename ALTER COLUMN id SET DEFAULT null;DROP SEQUENCE IF EXISTS ...
- Java-Class-I：org.springframework.web.mutipart.MutipartFile
ylbtech-Java-Class-I:org.springframework.web.mutipart.MutipartFile 1.返回顶部 2.返回顶部 1.1. import org.s ...
- pycharm中evaluate expression的用法
pycharm中evaluate expression的用法 首先要用debug调试模式运行程序,在代码编辑处右键debug,或着选择右上角的小虫子图标点击. 然后保证整个程序运行的时候可以中断,然后 ...
- springboot入门级笔记
springboot亮点:不用配置tomcat springboot不支持jsp 准备:配置jdk 配置maven 访问https://start.spring.io/ 并生成自己的springboo ...