Linux性能测试pmap命令

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  名称:

  pmap – report memory map of a process(查看进程的内存映像信息)

  用法

  pmap [ -x | -d ] [ -q ] pids…

  pmap -V

  选项含义

  -x extended Show the extended format. 显示扩展格式

  -d device Show the device format. 显示设备格式

  -q quiet Do not display some header/footer lines. 不显示头尾行

  -V show version Displays version of program. 显示版本

  扩展格式和设备格式域:

  Address: start address of map 映像起始地址

  Kbytes: size of map in kilobytes 映像大小

  RSS: resident set size in kilobytes 驻留集大小

  Dirty: dirty pages (both shared and private) in kilobytes 脏页大小

  Mode: permissions on map 映像权限: r=read, w=write, x=execute, s=shared, p=private (copy on write)

  Mapping: file backing the map , or ‘[ anon ]’ for allocated memory, or ‘[ stack ]’ for the program stack. 映像支持文件,[anon]为已分配内存 [stack]为程序堆栈

  Offset: offset into the file 文件偏移

  Device: device name (major:minor) 设备名

  举例:

  查看进程1的设备格式

  [root@C44 ~]# pmap -d 1

  1: init [5]

  Address Kbytes Mode Offset Device Mapping

  00934000 88 r-x– 0000000000000000 008:00005 ld-2.3.4.so

  0094a000 4 r—- 0000000000015000 008:00005 ld-2.3.4.so

  0094b000 4 rw— 0000000000016000 008:00005 ld-2.3.4.so

  0094e000 1188 r-x– 0000000000000000 008:00005 libc-2.3.4.so

  00a77000 8 r—- 0000000000129000 008:00005 libc-2.3.4.so

  00a79000 8 rw— 000000000012b000 008:00005 libc-2.3.4.so

  00a7b000 8 rw— 0000000000a7b000 000:00000 [ anon ]

  00a85000 52 r-x– 0000000000000000 008:00005 libsepol.so.1

  00a92000 4 rw— 000000000000c000 008:00005 libsepol.so.1

  00a93000 32 rw— 0000000000a93000 000:00000 [ anon ]

  00d9d000 52 r-x– 0000000000000000 008:00005 libselinux.so.1

  00daa000 4 rw— 000000000000d000 008:00005 libselinux.so.1

  08048000 28 r-x– 0000000000000000 008:00005 init

  0804f000 4 rw— 0000000000007000 008:00005 init

  084e1000 132 rw— 00000000084e1000 000:00000 [ anon ]

  b7f5d000 8 rw— 00000000b7f5d000 000:00000 [ anon ]

  bffee000 72 rw— 00000000bffee000 000:00000 [ stack ]

  ffffe000 4 —– 0000000000000000 000:00000 [ anon ]

  mapped: 1700K writeable/private: 276K shared: 0K

  [root@C44 ~]#

[1][2]

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Linux性能测试pmap命令

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