命令
pidstat
描述
Report statistics for Linux tasks
显示系统进程统计信息
用法
1
| pidstat [ options ] [ <interval> [ <count> ] ]
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选项
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| Options: -C CMD 指定命令名称,支持正则 -d 显示系统IO -l 显示完整的命令行 -p { pid [,...] | ALL } 指定pid,ALL表示显示所有 -r 显示页面错误和内存使用情况 -s 显示堆栈信息 -t 显示线程信息 -U 显示用户名而非UID
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注意
pidstat
命令可以显示指定进程统计信息
pldd
命令可以显示指定进程PID的共享库
pmap
命令可以显示指定进程PID的内存映射
prtstat
命令可以显示进程详细信息
示例
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| $ pidstat -C sshd Linux 3.10.0-1160.11.1.el7.x86_64 (centos7) 03/12/2021 _x86_64_ (2 CPU) 07:53:54 PM UID PID %usr %system %guest %CPU CPU Command 07:53:54 PM 0 10649 0.00 0.00 0.00 0.00 1 sshd 07:53:54 PM 0 10726 0.00 0.00 0.00 0.00 1 sshd
$ pidstat -d -C sshd 07:55:18 PM UID PID kB_rd/s kB_wr/s kB_ccwr/s Command 07:55:18 PM 0 10578 0.00 0.00 0.00 sshd
$ pidstat -p 10649 08:05:06 PM UID PID %usr %system %guest %CPU CPU Command 08:05:06 PM 0 10726 0.00 0.00 0.00 0.00 1 sshd
$ pidstat -r -C sshd 08:05:51 PM UID PID minflt/s majflt/s VSZ RSS %MEM Command 08:05:51 PM 0 10578 0.06 0.00 112936 4296 0.21 sshd 08:05:51 PM 0 10649 0.08 0.00 157512 5924 0.29 sshd 08:05:51 PM 0 10726 0.08 0.00 157512 5924 0.29 sshd
$ pidstat -r -p 10726 2 5 08:15:22 PM UID PID minflt/s majflt/s VSZ RSS %MEM Command 08:15:24 PM 0 10726 0.00 0.00 157512 5924 0.29 sshd 08:15:26 PM 0 10726 0.00 0.00 157512 5924 0.29 sshd 08:15:28 PM 0 10726 0.00 0.00 157512 5924 0.29 sshd 08:15:30 PM 0 10726 0.00 0.00 157512 5924 0.29 sshd 08:15:32 PM 0 10726 0.00 0.00 157512 5924 0.29 sshd Average: 0 10726 0.00 0.00 157512 5924 0.29 sshd
$ pidstat -s -C sshd 08:06:26 PM UID PID StkSize StkRef Command 08:06:26 PM 0 10578 132 20 sshd 08:06:26 PM 0 10649 132 36 sshd 08:06:26 PM 0 10726 132 36 sshd
$ pidstat -t -C sshd 08:09:13 PM UID TGID TID %usr %system %guest %CPU CPU Command 08:09:13 PM 0 10649 - 0.00 0.00 0.00 0.00 1 sshd 08:09:13 PM 0 - 10649 0.00 0.00 0.00 0.00 1 |__sshd 08:09:13 PM 0 10726 - 0.00 0.00 0.00 0.00 1 sshd 08:09:13 PM 0 - 10726 0.00 0.00 0.00 0.00 1 |__sshd
$ pidstat -U -C sshd 08:11:33 PM USER PID %usr %system %guest %CPU CPU Command 08:11:33 PM root 10649 0.00 0.00 0.00 0.00 1 sshd 08:11:33 PM root 10726 0.00 0.00 0.00 0.00 0 sshd
$ pidstat -r -p ALL -C "sshd|chronyd" 08:16:00 PM UID PID minflt/s majflt/s VSZ RSS %MEM Command 08:16:00 PM 998 10531 0.01 0.00 100496 1396 0.07 chronyd 08:16:00 PM 0 10578 0.05 0.00 112936 4296 0.21 sshd 08:16:00 PM 0 10649 0.07 0.00 157512 5924 0.29 sshd 08:16:00 PM 0 10726 0.07 0.00 157512 5924 0.29 sshd
$ pldd 10531 10531: /usr/sbin/chronyd linux-vdso.so.1 /lib64/libm.so.6 /lib64/libfreebl3.so /lib64/libcap.so.2 /lib64/libseccomp.so.2 /lib64/libpthread.so.0 /lib64/libc.so.6 /lib64/ld-linux-x86-64.so.2 /lib64/libdl.so.2 /lib64/libattr.so.1 /lib64/libnss_files.so.2 /lib64/libnss_dns.so.2 /lib64/libresolv.so.2
$ ldd /usr/sbin/chronyd linux-vdso.so.1 => (0x00007ffc48197000) libm.so.6 => /lib64/libm.so.6 (0x00007f969dbab000) libfreebl3.so => /lib64/libfreebl3.so (0x00007f969d9a8000) libcap.so.2 => /lib64/libcap.so.2 (0x00007f969d7a3000) libseccomp.so.2 => /lib64/libseccomp.so.2 (0x00007f969d562000) libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f969d346000) libc.so.6 => /lib64/libc.so.6 (0x00007f969cf78000) /lib64/ld-linux-x86-64.so.2 (0x00007f969e0ee000) libdl.so.2 => /lib64/libdl.so.2 (0x00007f969cd74000) libattr.so.1 => /lib64/libattr.so.1 (0x00007f969cb6f000)
$ pmap 10531 10531: /usr/sbin/chronyd 000055c7536a1000 248K r-x-- chronyd 000055c7538df000 4K r---- chronyd 000055c7538e0000 4K rw--- chronyd 000055c7538e1000 4K rw--- [ anon ] 000055c753db0000 132K rw--- [ anon ] 00007ff7cc000000 132K rw--- [ anon ] 00007ff7cc021000 65404K ----- [ anon ] 00007ff7d2942000 88K r-x-- libresolv-2.17.so 00007ff7d2958000 2048K ----- libresolv-2.17.so 00007ff7d2b58000 4K r---- libresolv-2.17.so 00007ff7d2b59000 4K rw--- libresolv-2.17.so
$ pmap -d 10531|head 10531: /usr/sbin/chronyd Address Kbytes Mode Offset Device Mapping 000055c7536a1000 248 r-x-- 0000000000000000 0fd:00000 chronyd 000055c7538df000 4 r---- 000000000003e000 0fd:00000 chronyd 000055c7538e0000 4 rw--- 000000000003f000 0fd:00000 chronyd 000055c7538e1000 4 rw--- 0000000000000000 000:00000 [ anon ] 000055c753db0000 132 rw--- 0000000000000000 000:00000 [ anon ] 00007ff7cc000000 132 rw--- 0000000000000000 000:00000 [ anon ] 00007ff7cc021000 65404 ----- 0000000000000000 000:00000 [ anon ] 00007ff7d2942000 88 r-x-- 0000000000000000 0fd:00000 libresolv-2.17.so
$ pmap -x 10531|head 10531: /usr/sbin/chronyd Address Kbytes RSS Dirty Mode Mapping 000055c7536a1000 248 200 0 r-x-- chronyd 000055c7538df000 4 4 4 r---- chronyd 000055c7538e0000 4 4 4 rw--- chronyd 000055c7538e1000 4 4 4 rw--- [ anon ] 000055c753db0000 132 36 36 rw--- [ anon ] 00007ff7cc000000 132 12 12 rw--- [ anon ] 00007ff7cc021000 65404 0 0 ----- [ anon ] 00007ff7d2942000 88 56 0 r-x-- libresolv-2.17.so
$ prtstat 10531 Process: chronyd State: S (sleeping) CPU Process, Group and Session IDs Process ID: 10531 Parent ID: 1 Group ID: 10530 Session ID: 10530 T Group ID: -1 Page Faults This Process (minor major): 359 0 Child Processes (minor major): 0 0 CPU Times This Process (user system guest blkio): 0.00 0.01 0.00 0.00 Child processes (user system guest): 0.00 0.00 0.00 Memory Vsize: 102 MB RSS: 1429 kB RSS Limit: 18446744073709 MB Code Start: 0x55c7536a1000 Code Stop: 0x55c7536de9fc Stack Start: 0x7fff1a1e1160 Stack Pointer (ESP): 0x7fff1a1e0d10 Inst Pointer (EIP): 0x7ff7d3c759a3 Scheduling Policy: normal Nice: 0 RT Priority: 0 (non RT)
$ prtstat -r 10531 pid: 10531 comm: chronyd state: S ppid: 1 pgrp: 10530 session: 10530 tty_nr: 0 tpgid: -1 flags: 40402140 minflt: 359 cminflt: 0 majflt: 0 cmajflt: 0 utime: 0 stime: 1 cutime: 0 cstime: 0 priority: 20 nice: 0 num_threads: 1 itrealvalue: 0 starttime: 2305400 vsize: 102907904 rss: 349 rsslim: 18446744073709551615 startcode: 94314586312704 endcode: 94314586565116 startstack: 140733631566176 kstkesp: 7FFF1A1E0D10 kstkeip: 7FF7D3C759A3 wchan: 18446744071682015509 nswap: 0 cnswap: 18446744071682015509 exit_signal: 17 processor: 1 rt_priority: 0 policy: 0 delayaccr_blkio_ticks: 0 guest_time: 0 cguest_time: 0
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