[轉]谁吃了我的Linux内存?
http://colobu.com/2017/03/07/what-is-in-linux-cached/#more
slabtop -s c
======================
pcstat
https://github.com/tobert/pcstat
#!/bin/bash
#you have to install pcstat
if \[ ! \-f /data0/brokerproxy/pcstat \]
then
echo "You haven't installed pcstat yet"
echo "run \\"go get github.com/tobert/pcstat\\" to install"
exit
fi
#find the top 10 processs' cache file
ps \-e -o pid,rss|sort -nk2 -r|head -10 |awk '{print $1}'\>/tmp/cache.pids
#find all the processs' cache file
#ps -e -o pid>/tmp/cache.pids
if \[ \-f /tmp/cache.files \]
then
echo "the cache.files is exist, removing now "
rm \-f /tmp/cache.files
fi
while read line
do
lsof -p $line 2\>/dev/null|awk '{print $9}' >>/tmp/cache.files
done</tmp/cache.pids
if \[ \-f /tmp/cache.pcstat \]
then
echo "the cache.pcstat is exist, removing now"
rm \-f /tmp/cache.pcstat
fi
for i in \`cat /tmp/cache.files\`
do
if \[ \-f $i \]
then
echo $i >>/tmp/cache.pcstat
fi
done
/data0/brokerproxy/pcstat \`cat /tmp/cache.pcstat\`
rm \-f /tmp/cache.{pids,files,pcstat}