[实践OK]CentOS使用下ps命令无头--no-headers下计算PHP-FPM进程内存统计的方法,查看PPID以及PHP启动守护进程的进程名执行后请用ps查看是否存在两个ppid为1的主进程,如果存在,使用kill杀掉重启中未正常杀掉的进程 PHP启动的守护进程:ps -f -C php PHP-FPM进程:ps -f -C php,Centos7安装pstree之yum install psmisc,Linux下多线程查看工具(pstree、ps、pstack),linux命令之-pstree使用说明, linux/centos man中有ps -eLf查看线程状态。
man ps里有:
ps -eLf查看线程状态,获取线程信息
-e Select all processes. Identical to -A. -e 选择所有进程。 与 -A 相同。
ps -eLf
-f 做全格式列表。该选项可与许多其他 UNIX 样式的选项结合使用,以添加额外的列。 它还会导致参数打印出来。 与 -L 一起使用时,将添加 NLWP(线程数)和 LWP(线程 ID)列。 参见 c 选项、格式关键字 args 和格式关键字 comm。
不加-e的全量,加上进程名查看此进程的所有线程(LWP (thread ID)):
ps -Lf -C pdfwatcherd
UID PID PPID LWP C NLWP STIME TTY TIME CMD
root 48369 1 48369 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48370 0 8 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48371 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48372 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48373 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48375 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48376 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48377 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48374 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48378 0 6 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48379 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48380 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48381 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48382 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
ps -ef|grep pdfwatcherd
root 37734 7504 0 11:31 pts/1 00:00:00 grep --color=auto pdfwatcherd
root 48369 1 0 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 0 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
48374 下面有:5个线程(48374 48369 48374 除外):
root 48374 48369 48378 0 6 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48379 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48380 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48381 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48382 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
48369(48369 1 )下面有7个线程(去掉root 48369 1 48369):
root 48369 1 48370 0 8 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48371 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48372 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48373 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48375 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48376 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48377 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
ps axms
ps -T -p <pdfwatcherd的PID>
将列出该进程所有线程的信息,包括线程的 ID(TID)、状态、运行时间等。
ps -T -p 48369
PID SPID TTY TIME CMD
48369 48369 ? 00:00:00 pdfwatcherd
48369 48370 ? 00:00:01 pdfwatcherd
48369 48371 ? 00:00:00 pdfwatcherd
48369 48372 ? 00:00:00 pdfwatcherd
48369 48373 ? 00:00:00 pdfwatcherd
48369 48375 ? 00:00:00 pdfwatcherd
48369 48376 ? 00:00:00 pdfwatcherd
48369 48377 ? 00:00:00 pdfwatcherd
-T Show threads, possibly with SPID column.
-p pidlist
Select by PID. This selects the processes whose process ID numbers appear in pidlist. Identical to p and --pid.
打印进程树
ps -ejH
ps axjf
CentOS使用下ps命令无头计算PHP-FPM进程内存统计的方法:
0)100个子进程,加上主进程101
1)每个PHP不到10M
2)Ps显示的是kb,得大体除以1024
--no-headers print no header line at all
ps -f -C php --no-headers
ps -f -C php --no-headers
看Logstash多线程, L的意思,light weight process:
执行后请用ps查看是否存在两个ppid为1的主进程,如果存在,使用kill杀掉重启中未正常杀掉的进程
PHP启动的守护进程:ps -f -C php
PHP-FPM进程:ps -f -C php-fpm
PHP-FPM的单进程单线程模型,用ps 命令,-L参数显示进程,并尽量显示其LWP(线程ID)和NLWP(线程的个数),如下:
[root@rh08 none]# ps -eLf | grep php-fpm
www 39154 22867 39154 2 1 10:38 ? 00:00:01 php-fpm: pool www
www 39155 22867 39155 2 1 10:38 ? 00:00:01 php-fpm: pool www
www 39156 22867 39156 2 1 10:38 ? 00:00:01 php-fpm: pool www
www 39157 22867 39157 2 1 10:38 ? 00:00:01 php-fpm: pool www
www 39158 22867 39158 2 1 10:38 ? 00:00:01 php-fpm: pool www
上面命令查询结果的第二列为PID,第三列为PPID,第四列为LWP,第六列为NLWP。
ps命令还可以查看线程在哪个CPU上运行:
[root@rh08 none]# ps -eo ruser,pid,ppid,lwp,psr,args -L | grep php
root 22867 1 22867 1 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
www 38929 22867 38929 0 php-fpm: pool www
www 38930 22867 38930 0 php-fpm: pool www
www 38934 22867 38934 0 php-fpm: pool www
www 38935 22867 38935 0 php-fpm: pool www
www 38936 22867 38936 0 php-fpm: pool www
www 38937 22867 38937 1 php-fpm: pool www
From:http://smilejay.com/2012/06/linux_view_threads/
yum install epel-release -y
yum install htop -y
#pstree -c|grep shutdown
| |-sshd---sshd---bash---sudo---su---bash---go-+-shutdown-+-{shutdown}
| | | |-{shutdown}
| | | |-{shutdown}
| | | |-{shutdown}
| | | `-{shutdown}
ps -T -p 12264
PID SPID TTY TIME CMD
12264 12264 pts/1 00:00:00 shutdown
12264 12266 pts/1 00:00:00 shutdown
12264 12267 pts/1 00:00:00 shutdown
12264 12268 pts/1 00:00:00 shutdown
12264 12269 pts/1 00:00:00 shutdown
12264 12270 pts/1 00:00:00 shutdown
top -H -p 12264
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12264 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
12266 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
12267 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
12268 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
12269 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
12270 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
Htop:
yum install htop
htop -p 67517
PID USER PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command 67519 root 20 0 686M 2880 740 S 0.0 0.3 0:00.00 /tmp/go-build3856511210/b001/exe/shutdown
67520 root 20 0 686M 2880 740 S 0.0 0.3 0:00.00 /tmp/go-build3856511210/b001/exe/shutdown
67521 root 20 0 686M 2880 740 S 0.0 0.3 0:00.00 /tmp/go-build3856511210/b001/exe/shutdown
67522 root 20 0 686M 2880 740 S 0.0 0.3 0:00.00 /tmp/go-build3856511210/b001/exe/shutdown
Display Options ,[V]Tree view [V]show custom thread name ,勾选是空格键盘,上下键移动菜单条目,OK后,按<F10>退出设置,左斜杠搜索F2也是搜索,F3是Next,ESC推出。
一个对用户更加友好的方式是,通过htop查看单个进程的线程,它是一个基于ncurses的交互进程查看器。该程序允许你在树状视图中监控单个独立线程。
要在htop中启用线程查看,请开启htop,然后按<F2>来进入htop的设置菜单。选择“设置”栏下面的“显示选项”,然后开启“树状视图”和“显示自定义线程名”选项。按<F10>退出设置。
From: http://www.codeceo.com/article/linux-find-thread.html
0.最常用 pstree:
[root@iZ25dcp92ckZ temp]# pstree -a|grep multe
| | `-multepoolser
| | `-multepoolser
| | `-2*[{multepoolser}]
1. > top
可以显示所有系统进程
按u, 再输入相应的执行用户名称,比如Tom
可以看到Tom用户启动的所有进程和对应的pid
2. > pstack pid
可以看到此pid下,各线程的运行状态、
[root@test multepoolserver]# pstack 14944 (进程的PID号)
Thread 2 (Thread 0x41ed5940 (LWP 14945)):
#0 0x0000003c9ae0d5cb in read () from /lib64/libpthread.so.0
#1 0x00000000004017b6 in sync_additional_writing_worker ()
#2 0x0000003c9ae064a7 in start_thread () from /lib64/libpthread.so.0
#3 0x0000003c9a2d3c2d in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x2b24b3094250 (LWP 14944)):
#0 0x0000003c9a2d4018 in epoll_wait () from /lib64/libc.so.6
#1 0x0000000000401d59 in Process ()
#2 0x00000000004029b8 in main ()
来自:http://blog.csdn.net/wind_324/article/details/6152912
方法一:
ps -ef f
用树形显示进程和线程
在Linux下面好像因为没有真正的线程,是用进程模拟的,有一个是辅助线程,所以真正程序开的线程应该只有一个。
方法二:
[root@apache dhj]# ps axm|grep httpd
方法三:
另外用pstree -c也可以达到相同的效果,但是没有线程号:
[root@apache dhj]# pstree -c|grep httpd
来自:http://blog.chinaunix.net/uid-346158-id-2131012.html
1. pstree
pstree以树结构显示进程
2. ps -Lf
$ ps -Lf 1892
如下:PHP进程共启动了0个线程
root@119.10.6.**:~# ps -Lf 1892
UID PID PPID LWP C NLWP STIME TTY STAT TIME CMD
root 1892 1 1892 0 1 Jan15 ? Ss 0:53 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
Mysql多个线程:
root@119.10.6.*:~# ps -Lf 3005
UID PID PPID LWP C NLWP STIME TTY STAT TIME CMD
mysql 3005 2011 3005 0 39 Jan15 ? Sl 2:25 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3081 0 39 Jan15 ? Sl 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3082 0 39 Jan15 ? Sl 0:05 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3083 0 39 Jan15 ? Sl 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3084 0 39 Jan15 ? Sl 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3085 0 39 Jan15 ? Sl 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3086 0 39 Jan15 ? Sl 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3087 0 39 Jan15 ? Sl 0:05 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
3. pstack
pstack显示每个进程的栈跟踪,PHP的fpm主进程,发现这玩意是走的epoll:
root@119.10.6.23:~# pstack 1892
#0 0x00000030e9ae8fb3 in __epoll_wait_nocancel () from /lib64/libc.so.6
#1 0x0000000000856a74 in fpm_event_epoll_wait ()
#2 0x000000000084afff in fpm_event_loop ()
#3 0x0000000000845ee7 in fpm_run ()
#4 0x000000000084d900 in main ()
You have new mail in /var/spool/mail/root
ps -eLf查看线程状态,获取线程信息
-e Select all processes. Identical to -A. -e 选择所有进程。 与 -A 相同。
ps -eLf
-f 做全格式列表。该选项可与许多其他 UNIX 样式的选项结合使用,以添加额外的列。 它还会导致参数打印出来。 与 -L 一起使用时,将添加 NLWP(线程数)和 LWP(线程 ID)列。 参见 c 选项、格式关键字 args 和格式关键字 comm。
不加-e的全量,加上进程名查看此进程的所有线程(LWP (thread ID)):
ps -Lf -C pdfwatcherd
UID PID PPID LWP C NLWP STIME TTY TIME CMD
root 48369 1 48369 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48370 0 8 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48371 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48372 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48373 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48375 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48376 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48377 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48374 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48378 0 6 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48379 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48380 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48381 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48382 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
ps -ef|grep pdfwatcherd
root 37734 7504 0 11:31 pts/1 00:00:00 grep --color=auto pdfwatcherd
root 48369 1 0 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 0 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
48374 下面有:5个线程(48374 48369 48374 除外):
root 48374 48369 48378 0 6 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48379 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48380 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48381 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48374 48369 48382 0 6 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
48369(48369 1 )下面有7个线程(去掉root 48369 1 48369):
root 48369 1 48370 0 8 Dec08 ? 00:00:01 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48371 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48372 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48373 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48375 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48376 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
root 48369 1 48377 0 8 Dec08 ? 00:00:00 /usr/local/pdfwatcher/bin/pdfwatcherd -d
ps axms
ps -T -p <pdfwatcherd的PID>
将列出该进程所有线程的信息,包括线程的 ID(TID)、状态、运行时间等。
ps -T -p 48369
PID SPID TTY TIME CMD
48369 48369 ? 00:00:00 pdfwatcherd
48369 48370 ? 00:00:01 pdfwatcherd
48369 48371 ? 00:00:00 pdfwatcherd
48369 48372 ? 00:00:00 pdfwatcherd
48369 48373 ? 00:00:00 pdfwatcherd
48369 48375 ? 00:00:00 pdfwatcherd
48369 48376 ? 00:00:00 pdfwatcherd
48369 48377 ? 00:00:00 pdfwatcherd
-T Show threads, possibly with SPID column.
-p pidlist
Select by PID. This selects the processes whose process ID numbers appear in pidlist. Identical to p and --pid.
打印进程树
ps -ejH
ps axjf
CentOS使用下ps命令无头计算PHP-FPM进程内存统计的方法:
0)100个子进程,加上主进程101
1)每个PHP不到10M
2)Ps显示的是kb,得大体除以1024
--no-headers print no header line at all
ps -f -C php --no-headers
ps -f -C php --no-headers
看Logstash多线程, L的意思,light weight process:
执行后请用ps查看是否存在两个ppid为1的主进程,如果存在,使用kill杀掉重启中未正常杀掉的进程
PHP启动的守护进程:ps -f -C php
PHP-FPM进程:ps -f -C php-fpm
PHP-FPM的单进程单线程模型,用ps 命令,-L参数显示进程,并尽量显示其LWP(线程ID)和NLWP(线程的个数),如下:
[root@rh08 none]# ps -eLf | grep php-fpm
www 39154 22867 39154 2 1 10:38 ? 00:00:01 php-fpm: pool www
www 39155 22867 39155 2 1 10:38 ? 00:00:01 php-fpm: pool www
www 39156 22867 39156 2 1 10:38 ? 00:00:01 php-fpm: pool www
www 39157 22867 39157 2 1 10:38 ? 00:00:01 php-fpm: pool www
www 39158 22867 39158 2 1 10:38 ? 00:00:01 php-fpm: pool www
上面命令查询结果的第二列为PID,第三列为PPID,第四列为LWP,第六列为NLWP。
ps命令还可以查看线程在哪个CPU上运行:
[root@rh08 none]# ps -eo ruser,pid,ppid,lwp,psr,args -L | grep php
root 22867 1 22867 1 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
www 38929 22867 38929 0 php-fpm: pool www
www 38930 22867 38930 0 php-fpm: pool www
www 38934 22867 38934 0 php-fpm: pool www
www 38935 22867 38935 0 php-fpm: pool www
www 38936 22867 38936 0 php-fpm: pool www
www 38937 22867 38937 1 php-fpm: pool www
From:http://smilejay.com/2012/06/linux_view_threads/
yum install epel-release -y
yum install htop -y
#pstree -c|grep shutdown
| |-sshd---sshd---bash---sudo---su---bash---go-+-shutdown-+-{shutdown}
| | | |-{shutdown}
| | | |-{shutdown}
| | | |-{shutdown}
| | | `-{shutdown}
ps -T -p 12264
PID SPID TTY TIME CMD
12264 12264 pts/1 00:00:00 shutdown
12264 12266 pts/1 00:00:00 shutdown
12264 12267 pts/1 00:00:00 shutdown
12264 12268 pts/1 00:00:00 shutdown
12264 12269 pts/1 00:00:00 shutdown
12264 12270 pts/1 00:00:00 shutdown
top -H -p 12264
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
12264 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
12266 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
12267 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
12268 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
12269 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
12270 root 20 0 702872 4924 740 S 0.0 0.6 0:00.00 shutdown
Htop:
yum install htop
htop -p 67517
PID USER PRI NI VIRT RES SHR S CPU% MEM% TIME+ Command 67519 root 20 0 686M 2880 740 S 0.0 0.3 0:00.00 /tmp/go-build3856511210/b001/exe/shutdown
67520 root 20 0 686M 2880 740 S 0.0 0.3 0:00.00 /tmp/go-build3856511210/b001/exe/shutdown
67521 root 20 0 686M 2880 740 S 0.0 0.3 0:00.00 /tmp/go-build3856511210/b001/exe/shutdown
67522 root 20 0 686M 2880 740 S 0.0 0.3 0:00.00 /tmp/go-build3856511210/b001/exe/shutdown
Display Options ,[V]Tree view [V]show custom thread name ,勾选是空格键盘,上下键移动菜单条目,OK后,按<F10>退出设置,左斜杠搜索F2也是搜索,F3是Next,ESC推出。
一个对用户更加友好的方式是,通过htop查看单个进程的线程,它是一个基于ncurses的交互进程查看器。该程序允许你在树状视图中监控单个独立线程。
要在htop中启用线程查看,请开启htop,然后按<F2>来进入htop的设置菜单。选择“设置”栏下面的“显示选项”,然后开启“树状视图”和“显示自定义线程名”选项。按<F10>退出设置。
From: http://www.codeceo.com/article/linux-find-thread.html
0.最常用 pstree:
[root@iZ25dcp92ckZ temp]# pstree -a|grep multe
| | `-multepoolser
| | `-multepoolser
| | `-2*[{multepoolser}]
1. > top
可以显示所有系统进程
按u, 再输入相应的执行用户名称,比如Tom
可以看到Tom用户启动的所有进程和对应的pid
2. > pstack pid
可以看到此pid下,各线程的运行状态、
[root@test multepoolserver]# pstack 14944 (进程的PID号)
Thread 2 (Thread 0x41ed5940 (LWP 14945)):
#0 0x0000003c9ae0d5cb in read () from /lib64/libpthread.so.0
#1 0x00000000004017b6 in sync_additional_writing_worker ()
#2 0x0000003c9ae064a7 in start_thread () from /lib64/libpthread.so.0
#3 0x0000003c9a2d3c2d in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x2b24b3094250 (LWP 14944)):
#0 0x0000003c9a2d4018 in epoll_wait () from /lib64/libc.so.6
#1 0x0000000000401d59 in Process ()
#2 0x00000000004029b8 in main ()
来自:http://blog.csdn.net/wind_324/article/details/6152912
方法一:
ps -ef f
用树形显示进程和线程
在Linux下面好像因为没有真正的线程,是用进程模拟的,有一个是辅助线程,所以真正程序开的线程应该只有一个。
方法二:
[root@apache dhj]# ps axm|grep httpd
方法三:
另外用pstree -c也可以达到相同的效果,但是没有线程号:
[root@apache dhj]# pstree -c|grep httpd
来自:http://blog.chinaunix.net/uid-346158-id-2131012.html
1. pstree
pstree以树结构显示进程
2. ps -Lf
$ ps -Lf 1892
如下:PHP进程共启动了0个线程
root@119.10.6.**:~# ps -Lf 1892
UID PID PPID LWP C NLWP STIME TTY STAT TIME CMD
root 1892 1 1892 0 1 Jan15 ? Ss 0:53 php-fpm: master process (/usr/local/php/etc/php-fpm.conf)
Mysql多个线程:
root@119.10.6.*:~# ps -Lf 3005
UID PID PPID LWP C NLWP STIME TTY STAT TIME CMD
mysql 3005 2011 3005 0 39 Jan15 ? Sl 2:25 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3081 0 39 Jan15 ? Sl 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3082 0 39 Jan15 ? Sl 0:05 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3083 0 39 Jan15 ? Sl 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3084 0 39 Jan15 ? Sl 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3085 0 39 Jan15 ? Sl 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3086 0 39 Jan15 ? Sl 0:00 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
mysql 3005 2011 3087 0 39 Jan15 ? Sl 0:05 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/data/mysql --plugin-dir=
3. pstack
pstack显示每个进程的栈跟踪,PHP的fpm主进程,发现这玩意是走的epoll:
root@119.10.6.23:~# pstack 1892
#0 0x00000030e9ae8fb3 in __epoll_wait_nocancel () from /lib64/libc.so.6
#1 0x0000000000856a74 in fpm_event_epoll_wait ()
#2 0x000000000084afff in fpm_event_loop ()
#3 0x0000000000845ee7 in fpm_run ()
#4 0x000000000084d900 in main ()
You have new mail in /var/spool/mail/root
作者:jackxiang@向东博客 专注WEB应用 构架之美 --- 构架之美,在于尽态极妍 | 应用之美,在于药到病除
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最后编辑: jackxiang 编辑于2023-12-19 11:34
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