Linux常用获取进程占用资源情况手段

2022-12-06 22:24:26

测试环境：Ubuntu14.04

1.  获取进程ID号

ps -aux | grep your_process_name

例如：

xxx@xxx:~$ ps -e |grep Midlet|awk '{print $1}'

9356

2.  查看进程相关信息

2.1 查看进程树信息：

xxx@xxx:~$ pstree -p 9356

runMidlet(9356)───{runMidlet}(9357)

2.2 查看进程打开的文件：

  1. xxx@xxx:~$ lsof -p 9356
  2. lsof: WARNING: can't stat() ext4 file system /var/lib/docker/aufs
  3. Output information may be incomplete.
  4. COMMAND    PID      USER   FD   TYPE DEVICE SIZE/OFF     NODE NAME
  5. runMidlet 9356 lubaoquan  cwd    DIR    8,5     4096 21096156 /home/lubaoquan/java/phoneme/temp/bin/i386
  6. runMidlet 9356 lubaoquan  rtd    DIR    8,1     4096        2 /
  7. runMidlet 9356 lubaoquan  txt    REG    8,5  2033266 20979964 /home/lubaoquan/java/phoneme/temp/bin/i386/runMidlet
  8. runMidlet 9356 lubaoquan  mem    REG    8,1  1754876  3682281 /lib/i386-linux-gnu/libc-2.19.so
  9. runMidlet 9356 lubaoquan  mem    REG    8,1   114372  3670186 /lib/i386-linux-gnu/libgcc_s.so.1
  10. runMidlet 9356 lubaoquan  mem    REG    8,1   134614  3682267 /lib/i386-linux-gnu/libpthread-2.19.so
  11. runMidlet 9356 lubaoquan  DEL    REG    0,5           3375128 /SYSV62010009
  12. runMidlet 9356 lubaoquan  mem    REG    8,1   134380  3682268 /lib/i386-linux-gnu/ld-2.19.so
  13. runMidlet 9356 lubaoquan    0u   CHR  136,3      0t0        6 /dev/pts/3
  14. runMidlet 9356 lubaoquan    1u   CHR  136,3      0t0        6 /dev/pts/3
  15. runMidlet 9356 lubaoquan    2u   CHR  136,3      0t0        6 /dev/pts/3
  16. runMidlet 9356 lubaoquan    3r  FIFO    8,1      0t0  1441801 /tmp/.qtvfb_mouse-0
  17. runMidlet 9356 lubaoquan    4r  FIFO    8,1      0t0  1441800 /tmp/.qtvfb_keyboard-0

2.3 查看进程系统调用相关信息：

  1. xxx@xxx:~$ sudo strace -p 9356</p>Process 9356 attached
  2. [ Process PID=9356 runs in 32 bit mode. ]
  3. select(5, [3 4], [], [], {0, 244888})   = 0 (Timeout)
  4. select(5, [3 4], [], [], {0, 250000})   = 0 (Timeout)
  5. select(5, [3 4], [], [], {0, 250000})   = 0 (Timeout)
  6. select(5, [3 4], [], [], {0, 250000})   = 0 (Timeout)
  7. select(5, [3 4], [], [], {0, 250000})   = 0 (Timeout)
  8. select(5, [3 4], [], [], {0, 250000})   = 0 (Timeout)

2.4 统计各系统调用耗费的时间：

  1. xxx@xxx:~$ sudo strace -p 9356 -c
  2. Process 9356 attached
  3. [ Process PID=9356 runs in 32 bit mode. ]
  4. System call usage summary for 32 bit mode:
  5. % time     seconds  usecs/call     calls    errors syscall
  6. ------ ----------- ----------- --------- --------- ----------------
  7. 98.85    0.030703          24      1275           select
  8. 1.01    0.000314           0      8498           gettimeofday
  9. 0.14    0.000042           0      1965       489 read
  10. 0.00    0.000000           0        27           write
  11. 0.00    0.000000           0        24        20 open
  12. 0.00    0.000000           0         4           close
  13. 0.00    0.000000           0        13           lseek
  14. 0.00    0.000000           0         2           munmap
  15. 0.00    0.000000           0       751           nanosleep
  16. 0.00    0.000000           0         8         2 stat64
  17. 0.00    0.000000           0         3           fstat64
  18. 0.00    0.000000           0        17           futex
  19. ------ ----------- ----------- --------- --------- ----------------
  20. 100.00    0.031059                 12587       511 total

2.5 ltrace统计信息

  1. xxx@xxxt:~$ ltrace -p 12394
  2. Cannot attach to pid 12394: Operation not permitted
  3. Could not attach to process.  If your uid matches the uid of the target
  4. process, check the setting of /proc/sys/kernel/yama/ptrace_scope, or try
  5. again as the root user.  For more details, see /etc/sysctl.d/10-ptrace.conf
  6. lubaoquan@zx8200-Lenovo-Product:~$ sudo ltrace -p 12394
  7. __fdelt_chk(4, 0xfff120d4, 0xfff12154, 0xfff121d4)                                                       = 0
  8. __fdelt_chk(3, 0xfff120d4, 0xfff12154, 0xfff121d4)                                                       = 0
  9. __divdi3(250, 0, 1000, 0)                                                                                = 0
  10. __moddi3(250, 0, 1000, 0)                                                                                = 250
  11. select(5, 0xfff120d4, 0xfff12154, 0xfff121d4)                                                            = 0
  12. __fdelt_chk(4, 0xfff120d4, 0xfff12154, 0xfff121d4)                                                       = 0
  13. __fdelt_chk(3, 0xfff120d4, 0xfff12154, 0xfff121d4)                                                       = 0
  14. __divdi3(250, 0, 1000, 0)                                                                                = 0
  15. __moddi3(250, 0, 1000, 0)                                                                                = 250
  16. select(5, 0xfff120d4, 0xfff12154, 0xfff121d4)                                                            = 0
  17. __fdelt_chk(4, 0xfff120d4, 0xfff12154, 0xfff121d4)                                                       = 0

2.6 pidstat的详细解释

-r     Report page faults andmemory utilization.

When reporting statistics for individualtasks, the following values may be displayed:

UID

The real user identification number of the task being monitored.

USER

The name of the real user owning the task being monitored.

PID

The identification number of the task being monitored.

minflt/s

Total number of minor faults the task has made per second, those whichhave not required loading a memory page from disk.

majflt/s

Total number of major faults the task has made per second, those whichhave required loading a memory page from disk.

VSZ

Virtual Size: The virtual memory usage of entire task in kilobytes.

RSS

Resident Set Size: The non-swapped physical memory used by the task inkilobytes.

%MEM

The tasks's currently used share of available physical memory.

Command

The command name of the task.

  1. lubaoquan@xxx:~$ pidstat -r -p 12691 1
  2. Linux 4.4.0-46-generic (zx8200-Lenovo-Product)    11/11/2016      _x86_64_         (4 CPU)
  3. 09:55:51 AM   UID       PID  minflt/s  majflt/s     VSZ    RSS   %MEM  Command
  4. 09:55:52 AM  1003     12691      0.00      0.00   17060   7216   0.12  runMidlet
  5. 09:55:53 AM  1003     12691      0.00      0.00   17060   7216   0.12  runMidlet
  6. 09:55:54 AM  1003     12691      0.00      0.00   17060   7216   0.12  runMidlet
  7. 09:55:55 AM  1003     12691      0.00      0.00   17060   7216   0.12  runMidlet
  8. 09:55:56 AM  1003     12691      0.00      0.00   17060   7216   0.12  runMidlet
  9. 09:55:57 AM  1003     12691      0.00      0.00   17060   7216   0.12  runMidlet
  10. 09:55:58 AM  1003     12691      0.00      0.00   17060   7216   0.12  runMidlet
  11. 09:55:59 AM  1003     12691      0.00      0.00   17060   7216   0.12  runMidlet
  12. 09:56:00 AM  1003     12691      0.00      0.00   17060   7216   0.12  runMidlet

显示stack使用情况：

-s    Report stack utilization.

  1. Linux 4.4.0-46-generic (zx8200-Lenovo-Product)    11/11/2016      _x86_64_         (4 CPU)
  2. 10:15:25 AM   UID       PID StkSize  StkRef  Command
  3. 10:15:26 AM  1003     12691     136      20  runMidlet
  4. 10:15:27 AM  1003     12691     136      20  runMidlet
  5. 10:15:28 AM  1003     12691     136      20  runMidlet

显示IO使用情况：

-d    Report I/O statistics (kernels 2.6.20 and later only).

  1. root@xxx:/proc/12691# pidstat -d -p 12691 1
  2. Linux 4.4.0-46-generic (zx8200-Lenovo-Product)    11/11/2016      _x86_64_         (4 CPU)
  3. 10:15:50 AM   UID       PID   kB_rd/s   kB_wr/s kB_ccwr/s  Command
  4. 10:15:51 AM  1003     12691      0.00      0.00      0.00  runMidlet
  5. 10:15:52 AM  1003     12691      0.00      0.00      0.00  runMidlet

显示CPU使用情况：

-u    Report CPU utilization.

背景是运行数独游戏。

  1. root@xxx:/proc/12691# pidstat -u -p 12691 1
  2. Linux 4.4.0-46-generic (zx8200-Lenovo-Product)    11/11/2016      _x86_64_         (4 CPU)
  3. 10:23:30 AM   UID       PID    %usr %system  %guest    %CPU   CPU  Command
  4. 10:23:31 AM  1003     12691    0.00    2.00    0.00    2.00     3  runMidlet
  5. 10:23:32 AM  1003     12691    1.00    1.00    0.00    2.00     1  runMidlet
  6. 10:23:33 AM  1003     12691    0.00    2.00    0.00    2.00     0  runMidlet
  7. 10:23:34 AM  1003     12691    1.00    1.00    0.00    2.00     2  runMidlet
  8. 10:23:35 AM  1003     12691    1.00    2.00    0.00    3.00     3  runMidlet

2.7 ps显示内存

  1. root@xxxt:/proc/12691# ps -p 12691 -u
  2. USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
  3. lubaoqu+ 12691  0.0  0.1  17060  8180 pts/3    Sl   09:50   0:00 ./runMidlet internal com.sun.midp.appmanager.MVMManager

使用ps更细致的显示内存占用情况：

ps -p 2395 -eo pid,comm,args,class,vsz,rss,sz | grep Midlet

vsz - virtual memory size of the process in KiB. Device mappings are currently excluded; this is subject to change.

rsz - resident set size, the non-swapped physical memory that a task has used(in killobytes).

sz - size in physical pages of the core image of the process. This includes text, data, and stack space. Device mappings are currently excluded; this is subject to change.

  1. xxx@xxx:~/java/phoneme/temp/bin/i386$ ps -eo pid,comm,args,class,vsz,rss,sz | grep Midlet
  2. 8952 runMidlet       ./runMidlet internal com.su TS   17060  7360  4265

2.8 procmem

  1. xxx@xxx:~/java/phoneme/temp/bin/i386$ sudo procmem -p 8952
  2. Vss      Rss      Pss      Uss     ShCl     ShDi     PrCl     PrDi  Name
  3. -------  -------  -------  -------  -------  -------  -------  -------
  4. 1748K    1600K    1600K    1600K       0K       0K    1600K       0K  /home/lubaoquan/java/phoneme/temp/bin/i386/runMidlet
  5. 12552K    1540K    1540K    1540K       0K       0K    3584K       0K
  6. 1696K    1200K     618K      36K    1164K       0K      36K       0K  /lib/i386-linux-gnu/libc-2.19.so
  7. 152K     144K     144K     144K       0K       0K     144K       0K
  8. 132K     100K     100K     100K       0K       0K     100K       0K  [heap]
  9. 152K     152K      76K       0K       0K     152K       0K       0K  /SYSV6201000e
  10. 128K     124K      66K       8K     116K       0K       8K       0K  /lib/i386-linux-gnu/ld-2.19.so
  11. 56K      56K      56K      56K       0K       0K      56K       0K
  12. 112K      96K      48K       0K      96K       0K       0K       0K  /lib/i386-linux-gnu/libgcc_s.so.1
  13. 96K      88K      44K       0K      88K       0K       0K       0K  /lib/i386-linux-gnu/libpthread-2.19.so
  14. 132K      20K      20K      20K       0K       0K      20K       0K  [stack]
  15. 16K      16K      16K      16K       0K       0K      16K       0K
  16. 8K       8K       8K       8K       0K       0K       8K       0K  /lib/i386-linux-gnu/libc-2.19.so
  17. 12K       8K       8K       8K       0K       0K       8K       0K
  18. 8K       8K       8K       8K       0K       0K       8K       0K  /home/lubaoquan/java/phoneme/temp/bin/i386/runMidlet
  19. 4K       4K       4K       4K       0K       0K       4K       0K  /home/lubaoquan/java/phoneme/temp/bin/i386/runMidlet
  20. 4K       4K       4K       4K       0K       0K       4K       0K  /lib/i386-linux-gnu/libc-2.19.so
  21. 4K       4K       4K       4K       0K       0K       4K       0K  /lib/i386-linux-gnu/libgcc_s.so.1
  22. 4K       4K       4K       4K       0K       0K       4K       0K  /lib/i386-linux-gnu/libpthread-2.19.so
  23. 4K       4K       4K       4K       0K       0K       4K       0K  /lib/i386-linux-gnu/ld-2.19.so
  24. 4K       4K       4K       4K       0K       0K       4K       0K
  25. 4K       4K       4K       4K       0K       0K       4K       0K  /lib/i386-linux-gnu/libpthread-2.19.so
  26. 4K       4K       4K       4K       0K       0K       4K       0K  /lib/i386-linux-gnu/ld-2.19.so
  27. 8K       4K       2K       0K       4K       0K       0K       0K  [vdso]
  28. 4K       0K       0K       0K       0K       0K       0K       0K  /lib/i386-linux-gnu/libc-2.19.so
  29. 4K       0K       0K       0K       0K       0K       0K       0K
  30. 8K       0K       0K       0K       0K       0K       0K       0K  [vvar]
  31. -------  -------  -------  -------  -------  -------  -------  -------
  32. 17056K    5196K    4386K    3576K    1468K     152K    5620K       0K  TOTAL
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