Linux pmap命令|极客笔记

Linux pmap命令：报告进程的内存映射。

Linux pmap命令功能描述

使用pmap命令可以报告进程的内存映射。

Linux pmap命令语法

pmap [选项] [进程PID]

命令中各选项的含义如表所示。

pmap命令选项含义

Linux pmap命令示例

报告进程45202的内存映射

[root@rhel ～]# pmap 45202
  45202:  /bin/bash/sbin/pppoe-setup
  0000000000400000   848K r-x--  /bin/bash
  00000000006d3000    40K rw---  /bin/bash
  00000000006dd000    20K rw---   [anon]
  00000000008dc000    36K rw---  /bin/bash
  000000000122a000   264K rw---   [anon]
  00000037fa400000   128K r-x--  /lib64/ld-2.12.so
  00000037fa61f000     4K r----  /lib64/ld-2.12.so
  00000037fa620000     4K rw---  /lib64/ld-2.12.so
  00000037fa621000     4K rw---   [anon]
  00000037fa800000     8K r-x--  /lib64/libdl-2.12.so
  00000037fa802000  2048K-----  /lib64/libdl-2.12.so
  00000037faa02000     4K r----  /lib64/libdl-2.12.so
  00000037faa03000     4K rw---  /lib64/libdl-2.12.so
  00000037fac00000  1576K r-x--  /lib64/libc-2.12.so
  00000037fad8a000  2044K-----  /lib64/libc-2.12.so
  00000037faf89000    16K r----  /lib64/libc-2.12.so
  00000037faf8d000     4K rw---  /lib64/libc-2.12.so
  00000037faf8e000    20K rw---   [anon]
  0000003809000000   116K r-x--  /lib64/libtinfo.so.5.7
  000000380901d000  2048K-----  /lib64/libtinfo.so.5.7
  000000380921d000    16K rw---  /lib64/libtinfo.so.5.7
  00007fb977fa4000  96832K r----  /usr/lib/locale/locale-archive
  00007fb97de34000    12K rw---   [anon]
  00007fb97de63000     4K rw---   [anon]
  00007fb97de64000    28K r--s-  /usr/lib64/gconv/gconv-modules.cache
  00007fb97de6b000     4K rw---   [anon]
  00007fffe7fd6000    84K rw---   [stack]
  00007fffe7fff000     4K r-x--   [anon]
  ffffffffff600000     4K r-x--   [anon]
  total         106224K

报告进程45202的内存映射，以扩展格式显示

[root@rhel ～]# pmap -x 45202
45202:  /bin/bash/sbin/pppoe-setup
Address         Kbytes    RSS  Dirty Mode  Mapping
0000000000400000    848    428      0 r-x--  bash
00000000006d3000     40     20     20 rw---  bash
00000000006dd000     20     20     20 rw---   [anon]
00000000008dc000     36      8      0 rw---  bash
000000000122a000    264    140    140 rw---   [anon]
00000037fa400000    128    104      0 r-x--  ld-2.12.so
00000037fa61f000      4      4      4 r----  ld-2.12.so
00000037fa620000      4      4      4 rw---  ld-2.12.so
00000037fa621000      4      4      4 rw---   [anon]
00000037fa800000      8      8      0 r-x--  libdl-2.12.so
00000037fa802000   2048      0      0-----  libdl-2.12.so
00000037faa02000      4      4      4 r----  libdl-2.12.so
00000037faa03000      4      4      4 rw---  libdl-2.12.so
00000037fac00000   1576    480      0 r-x--  libc-2.12.so
00000037fad8a000   2044      0      0-----  libc-2.12.so
00000037faf89000     16     16      4 r----  libc-2.12.so
00000037faf8d000      4      4      4 rw---  libc-2.12.so
00000037faf8e000     20     12     12 rw---   [anon]
0000003809000000    116     20      0 r-x--  libtinfo.so.5.7
000000380901d000   2048      0      0-----  libtinfo.so.5.7
000000380921d000     16     12      4 rw---  libtinfo.so.5.7
00007fb977fa4000  96832     40      0 r----  locale-archive
00007fb97de34000     12     12     12 rw---   [anon]
00007fb97de63000      4      4      4 rw---   [anon]
00007fb97de64000     28     20      0 r--s-  gconv-modules.cache
00007fb97de6b000      4      4      4 rw---   [anon]
00007fffe7fd6000     84     32     32 rw---   [stack]
00007fffe7fff000      4      4      0 r-x--   [anon]
ffffffffff600000      4      0      0 r-x--   [anon]
----------------  ------  ------  ------
total kB         106224   1408    276

报告进程45202的内存映射，并显示设备的格式

[root@rhel ～]# pmap -d 45202
45202:  /bin/bash/sbin/pppoe-setup
Address         Kbytes Mode  Offset         Device   Mapping
0000000000400000    848 r-x--0000000000000000008:00002 bash
00000000006d3000     40 rw---00000000000d3000008:00002 bash
00000000006dd000     20 rw---0000000000000000000:00000  [anon]
00000000008dc000     36 rw---00000000000dc000008:00002 bash
000000000122a000    264 rw---0000000000000000000:00000  [anon]
00000037fa400000    128 r-x--0000000000000000008:00002 ld-2.12.so
00000037fa61f000      4 r----000000000001f000008:00002 ld-2.12.so
00000037fa620000      4 rw---0000000000020000008:00002 ld-2.12.so
00000037fa621000      4 rw---0000000000000000000:00000  [anon]
00000037fa800000      8 r-x--0000000000000000008:00002 libdl-2.12.so
00000037fa802000   2048-----0000000000002000008:00002 libdl-2.12.so
00000037faa02000      4 r----0000000000002000008:00002 libdl-2.12.so
00000037faa03000      4 rw---0000000000003000008:00002 libdl-2.12.so
00000037fac00000   1576 r-x--0000000000000000008:00002 libc-2.12.so
00000037fad8a000   2044-----000000000018a000008:00002 libc-2.12.so
00000037faf89000     16 r----0000000000189000008:00002 libc-2.12.so
00000037faf8d000      4 rw---000000000018d000008:00002 libc-2.12.so
00000037faf8e000     20 rw---0000000000000000000:00000  [anon]
0000003809000000    116 r-x--0000000000000000008:00002 libtinfo.so.5.7
000000380901d000   2048-----000000000001d000008:00002 libtinfo.so.5.7
000000380921d000     16 rw---000000000001d000008:00002 libtinfo.so.5.7
00007fb977fa4000  96832 r----0000000000000000008:00002 locale-archive
00007fb97de34000     12 rw---0000000000000000000:00000  [anon]
00007fb97de63000      4 rw---0000000000000000000:00000  [anon]
00007fb97de64000     28 r--s-0000000000000000008:00002 gconv-modules.cache
00007fb97de6b000      4 rw---0000000000000000000:00000  [anon]
00007fffe7fd6000     84 rw---0000000000000000000:00000  [stack]
00007fffe7fff000      4 r-x--0000000000000000000:00000  [anon]
ffffffffff600000      4 r-x--0000000000000000000:00000  [anon]
mapped:106224K   writeable/private:516K   shared:28K