linux 進程及子進程

查看進程及子進程：

ps -lax查看進程，以及父進程。找到自己需要查看的進程的pid，然後

ps --ppid ****

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ps -ef |grep進程名
ps -aux |grep 進程名
ps --ppid xxxx
ps -lax
top

 

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得到進程的pid： ps -ef | grep process_name | grep -v "grep" | awk '{print $2}'

查看進程的所有線程 # ps mp 6648 -o THREAD,tid USER %CPU PRI SCNT WCHAN USER SYSTEM TID root 0.0 - - - - - - root 0.0 24 - - - - 6648 root 0.0 21 - - - - 6650 root 1.0 24 - - - - 14214 root 0.0 23 - futex_ - - 14216 root 0.0 22 - 184466 - - 15374 root 0.0 23 - 184466 - - 15376 root 0.0 23 - 184466 - - 15378 root 0.0 23 - 184466 - - 15380 root 0.0 23 - 184466 - - 15392 root 0.0 23 - 184466 - - 15394 root 0.0 23 - 184466 - - 15398

查看所有子進程： # pstree -p 6648 agent_executor(6648)─┬─tar(15601)───gzip(15607) ├─{agent_executor}(6650) ├─{agent_executor}(14214) ├─{agent_executor}(14216) ├─{agent_executor}(15374) ├─{agent_executor}(15376) ├─{agent_executor}(15378) ├─{agent_executor}(15380) ├─{agent_executor}(15392) ├─{agent_executor}(15394) └─{agent_executor}(15398)

 

查看/proc/pid/status可以看到一些進程的目前狀態：

Name: bash State: S (sleeping) SleepAVG: 98% Tgid: 11237 Pid: 11237 PPid: 11235 TracerPid: 0 Uid: 0 0 0 0 Gid: 0 0 0 0 FDSize: 256 Groups: 0 1 2 3 4 6 10 VmPeak: 66260 kB VmSize: 66228 kB VmLck: 0 kB VmHWM: 1684 kB VmRSS: 1684 kB VmData: 456 kB VmStk: 88 kB VmExe: 712 kB VmLib: 1508 kB VmPTE: 68 kB StaBrk: 008c3000 kB Brk: 011b1000 kB StaStk: 7fff8b728170 kB Threads: 1 SigQ: 1/30222 SigPnd: 0000000000000000 ShdPnd: 0000000000000000 SigBlk: 0000000000010000 SigIgn: 0000000000384004 SigCgt: 000000004b813efb CapInh: 0000000000000000 CapPrm: 00000000fffffeff CapEff: 00000000fffffeff Cpus_allowed: 00000000,00000000,00000000,00000000,00000000,00000000,00000000,00000003 Mems_allowed: 1

 

系統效能：top -d 1 -p **id -b > a.txt

vmstat 1