inotify 监控简单shell
for foo in /proc/*/fd/*; do readlink -f $foo; done | grep inotify | sort | uniq -c | sort -nr
一个很不错的script
#!/bin/sh
# Get the procs sorted by the number of inotify watchers
# @author Carl-Erik Kopseng
# @latest https://github.com/fatso83/dotfiles/blob/master/utils/scripts/inotify-consumers
# Discussion leading up to answer: https://unix.stackexchange.com/questions/15509/whos-consuming-my-inotify-resources
usage(){
cat << EOF
Usage: $0 [--help|--limits]
-l, --limits Will print the current related limits and how to change them
-h, --help Show this help
EOF
}
limits(){
echo "
Current limits
-------------"
sysctl fs.inotify.max_user_instances fs.inotify.max_user_watches
cat <<- EOF
Changing settings permanently
-----------------------------
echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf
sudo sysctl -p # re-read config
EOF
}
if [ "$1" = "--limits" -o "$1" = "-l" ]; then
limits
exit 0
fi
if [ "$1" = "--help" -o "$1" = "-h" ]; then
usage
exit 0
fi
if [ -n "$1" ]; then
echo "
Unknown parameter '$1'
" > /dev/stderr
usage
exit 1
fi
generateRawData(){
# From `man find`:
# %h Leading directories of file's name (all but the last element). If the file name contains no slashes (since it
# is in the current directory) the %h specifier expands to `.'.
# %f File's name with any leading directories removed (only the last element).
#
find /proc/*/fd
-lname anon_inode:inotify
-printf '%hinfo/%f
' 2>/dev/null
| xargs grep -c '^inotify'
| sort -n -t: -k2 -r
}
printf "
%10s
" "INOTIFY"
printf "%10s
" "WATCHER"
printf "%10s %5s %s
" " COUNT " "PID" "CMD"
printf -- "----------------------------------------
"
IFS=''; # to avoid `read` from interpreting whitespace and keep whole lines
generateRawData | while read line; do
watcher_count=$(echo $line | sed -e 's/.*://')
pid=$(echo $line | sed -e 's//proc/([0-9]*)/.*/1/')
cmdline=$(ps --columns 120 -o command -h -p $pid)
printf "%8d %7d %s
" "$watcher_count" "$pid" "$cmdline"
done
参考资料
https://github.com/fatso83/dotfiles/blob/master/utils/scripts/inotify-consumers