Here is some sample output for only 2 log periods (at logging loop iterations 2 and 3): _11:15:54, INFO, = START of loop count 2 = View the output live with: less -N -follow-name +F ~/cpu_log.log
Run it at a high priority with the soft real-time Round Robin (rr) scheduler so it can log even when your system freezes: sudo chrt -rr 1 path/to/eRCaGuy_dotfiles/useful_scripts/cpu_logger.py It allows me to write reports to Google like this: Chrome Google Meet CPU usage is still too high (see plots and CPU usage during Google Meet with my camera ON vs OFF). It logs continuously to a set of rotating log files. Here's a logging script I wrote and use: cpu_logger.py. their command without further arguments, as in /usr/bin/firefox)Īfter you've used a Spreadsheet to create a graph to see when your CPU load went through the roof, you can then search this file for the nearest time to see what process has caused it.Ģ2:57:42 up 1 day, 4:38, 4 users, load average: 1.00, 1.26, 1.21Ģ2:57:43 up 1 day, 4:38, 4 users, load average: 0.92, 1.24, 1.21Ģ2:57:44 up 1 day, 4:38, 4 users, load average: 0.92, 1.24, 1.21Ģ2:57:45 up 1 day, 4:38, 4 users, load average: 0.92, 1.24, 1.21Ġ.8 0.5 /usr/lib/gnome-panel/clock-applet This is just the top 10, and just their CPU Usage, Memory Usage and the first argument (i.e. Note that this is not the full boat-load of information top would give you. This will append the Top 10 most CPU hungry processes to a file ps.log every five seconds.
So, additionally, run this (or use his answer for this part): while true do (echo "%CPU %MEM ARGS $(date)" & ps -e -o pcpu,pmem,args -sort=pcpu | cut -d" " -f1-5 | tail) > ps.log sleep 5 done You can then import this file into Gnumeric or the OpenOffice spreadsheet to create a nice graph (select 'separated by spaces' on import).Īs Scaine noticed, this won't be enough to diagnose the problem. This will log your cpu load every second and append it to a file uptime.log. This works very well: while true do uptime > uptime.log sleep 1 done
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