http://blog.yufeng.info/archives/2456

统计所有进程内存大小

$ cat RSS.sh  

#/bin/bash 
for PROC in `ls  /proc/|grep "^[0-9]"`  

do 
  if [ -f /proc/$PROC/statm ]; then 
      TEP=`cat /proc/$PROC/statm | awk '{print ($2)}'`  

      RSS=`expr $RSS + $TEP`  

  fi 

done 

RSS=`expr $RSS \* 4`  

echo $RSS"KB" 


$ ./RSS.sh    

7024692KB

统计进程内存+slab+pagetable

$ cat cm.sh  

#/bin/bash  
for PROC in `ls /proc/|grep "^[0-9]"`  

do 
  if [ -f /proc/$PROC/statm ]; then 
      TEP=`cat /proc/$PROC/statm | awk '{print ($2)}'`  

      RSS=`expr $RSS + $TEP`  

  fi 

done 

RSS=`expr $RSS \* 4`  

PageTable=`grep PageTables /proc/meminfo | awk '{print $2}'`  

SlabInfo=`cat /proc/slabinfo |awk 'BEGIN{sum=0;}{sum=sum+$3*$4;}END{print sum/1024/1024}'`  

echo $RSS"KB", $PageTable"KB", $SlabInfo"MB" 

printf "rss+pagetable+slabinfo=%sMB\n" `echo $RSS/1024 + $PageTable/1024 + $SlabInfo|bc`  


free -m

ITPub博客

Linux 使用内存分析

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