Find and sort by Resident Size of each process on the system in MB

sudo ps aux --sort:rss | awk '{print $2"\t"$11": "$6/1024" MB"}' | column -t | less
Sample Output
2406   guake:                                                           31.0586   MB
2385   unity-2d-panel:                                                  32.3125   MB
2411   /usr/lib/vmware-tools/sbin64/vmtoolsd:                           35.8125   MB
11320  /usr/lib/chromium-browser/chromium-browser:                      37.0352   MB
11260  /usr/lib/chromium-browser/chromium-browser:                      37.625    MB
2386   unity-2d-launcher:                                               45.4844   MB
2839   /usr/bin/unity-2d-places:                                        52.1562   MB
11133  /usr/lib/chromium-browser/chromium-browser:                      100.266   MB
1013   /usr/bin/X:                                                      134.688   MB
11161  /usr/lib/chromium-browser/chromium-browser:                      163.75    MB

By: threv
2011-12-08 17:23:18

These Might Interest You

  • This is a alternate command I like to use instead of TOP or HTOP to see what are the processes which are taking up the most memory on a system. It shows the username, process ID, CPU usage, Memory usage, thread ID, Number of threads associated with parent process, Resident Set Size, Virtual Memory Size, start time of the process, and command arguments. Then it's sorted by memory and showing the top 10 with head. This of course can be changed to suit you needs. I have a small system which is why Firefox is taking so much resources. Show Sample Output

    watch -n .8 'ps -eaLo uname,pid,pcpu,pmem,lwp,nlwp,rss,vsz,start_time,args --sort -pmem| head -10'
    ubercoo · 2016-05-11 01:05:53 0
  • This command specifies the size in Kilobytes using 'k' in the -size +(N)k option. The plus sign says greater than. -exec [cmd] {} \; invokes ls -l command on each file and awk strips off the values of the 5th (size) and the 9th (filename) column from the ls -l output to display. Sort is done in reversed order (descending) numerically using sort -rn options. A cron job could be run to execute a script like this and alert the users if a dir has files exceeding certain size, and provide file details as well. Show Sample Output

    find . -size +10240k -exec ls -l {} \; | awk '{ print $5,"",$9 }'|sort -rn > message.out
    rommelsharma · 2009-02-17 19:39:56 2
  • Show the maximum amount of memory that was needed by a process at any time. My use case: Having a long-running computation job on $BIG_COMPUTER and judging whether it will also run on $SMALL_COMPUTER. VmHWM: Peak resident set size ("high water mark") Show Sample Output

    grep VmHWM /proc/$(pgrep -d '/status /proc/' FOO)/status
    michelsberg · 2014-11-05 15:06:29 1
  • Finds duplicates based on MD5 sum. Compares only files with the same size. Performance improvements on: find -not -empty -type f -printf "%s\n" | sort -rn | uniq -d | xargs -I{} -n1 find -type f -size {}c -print0 | xargs -0 md5sum | sort | uniq -w32 --all-repeated=separate The new version takes around 3 seconds where the old version took around 17 minutes. The bottle neck in the old command was the second find. It searches for the files with the specified file size. The new version keeps the file path and size from the beginning.

    find -not -empty -type f -printf "%-30s'\t\"%h/%f\"\n" | sort -rn -t$'\t' | uniq -w30 -D | cut -f 2 -d $'\t' | xargs md5sum | sort | uniq -w32 --all-repeated=separate
    fobos3 · 2014-10-19 02:00:55 0

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this? is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.


Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: