在嵌入式系统中，内存非常宝贵，监控内存情况是必做工作之一。
- proc @ kernel.org；
- proc @ wikipedia；
/proc/meminfo
父进程
ps -ef|grep superd |grep -v grep | awk '{print $1}'cat /proc/32036/status | grep PPid | awk '{print $2}'- How to get parent PID of a given process in GNU/Linux from command line？
/proc/$PID>/statm
- statm
Process memory status information
The statm file contains more detailed information about the process
memory usage. Its seven fields are explained in Table statm.
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