zoukankan      html  css  js  c++  java
  • /proc/pid/smaps

    The /proc/PID/smaps is an extension based on maps, showing the memory consumption for each of the process's mappings. For each of mappings there is a series of lines such as the following:

    08048000-080bc000 r-xp 00000000 03:02 13130      /bin/bash
    Size:               1084 kB
    Rss:                 892 kB
    Pss:                 374 kB
    Shared_Clean:        892 kB
    Shared_Dirty:          0 kB
    Private_Clean:         0 kB
    Private_Dirty:         0 kB
    Referenced:          892 kB
    Anonymous:             0 kB
    Swap:                  0 kB
    KernelPageSize:        4 kB
    MMUPageSize:           4 kB
    Locked:              374 kB
    

    The first of these lines shows the same information as is displayed for the mapping in /proc/PID/maps. The remaining lines show the size of the mapping (size), the amount of the mapping that is currently resident in RAM (RSS), the process' proportional share of this mapping (PSS), the number of clean and dirty private pages in the mapping. Note that even a page which is part of a MAP_SHARED mapping, but has only a single pte mapped, i.e. is currently used by only one process, is accounted as private and not as shared. "Referenced" indicates the amount of memory currently marked as referenced or accessed. "Anonymous" shows the amount of memory that does not belong to any file. Even a mapping associated with a file may contain anonymous pages: when MAP_PRIVATE and a page is modified, the file page is replaced by a private anonymous copy. "Swap" shows how much would-be-anonymous memory is also used, but out on swap.

    from: https://stackoverflow.com/questions/9922928/what-does-pss-mean-in-proc-pid-smaps

  • 相关阅读:
    pytorch基础(4)-----搭建模型网络的两种方法
    Java
    Tools
    Maven
    Java
    DevOps
    Linux
    Java
    Java
    Nutch 使用总结
  • 原文地址:https://www.cnblogs.com/aspirs/p/12458053.html
Copyright © 2011-2022 走看看