linux中 pmap 命令详解_Linux

linux中 pmap 命令详解

通过查看帮助，返回了如下信息：

usage: pmap [options] pid [pid ...]
options:
 -x, --extended       show details 
 -x             show even more details
      warning: format changes according to /proc/pid/smaps
 -xx             show everything the kernel provides
 -c, --read-rc        read the default rc
 -c, --read-rc-from=<file>  read the rc from file
 -n, --create-rc       create new default rc
 -n, --create-rc-to=<file>  create new rc to file
      note: pid arguments are not allowed with -n, -n
 -d, --device        show the device format
 -q, --quiet         do not display header and footer
 -p, --show-path       show path in the mapping
 -a, --range=<low>[,<high>] limit results to the given range
 -h, --help   display this help and exit -v, --version output version information and exit
for more details see pmap(1).

然后列出某个进程(pid:8868)的信息时如下：

pmap -x 8868
address      kbytes   rss  dirty mode mapping
00007f789ec2d000  1668  1384    0 r-x-- libc-2.19.so
00007f789edce000  2048    0    0 ----- libc-2.19.so
00007f789efce000   16   16   16 r---- libc-2.19.so
00007f789efd2000    8    8    8 rw--- libc-2.19.so
00000000020e0000  4008  4008  4008 rw---  [ anon ]
00007f787c000000   132   24   24 rw---  [ anon ]
00007f787c021000  65404    0    0 -----  [ anon ]
00007f7880000000   132   12   12 rw---  [ anon ]
00007f7880021000  65404    0    0 -----  [ anon ]
00007f7884000000   148   92   92 rw---  [ anon ]
00007f7884025000  65388    0    0 -----  [ anon ]

以上列表项的含义如下:

address: 内存分配地址

kbytes: 实际分配的内存大小

rss: 程序实际占用的内存大小

mapping: 分配该内存的模块的名称

总结

以上所述是小编给大家介绍的linux中 pmap 命令详解，希望对大家有所帮助