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pmav99 edited this page Oct 14, 2021 · 2 revisions

Welcome to the Thalassa wiki!

Profile panel

You need panel 0.13+ (which is currently in alpha) and to pip install pyinstrument. You can then run

panel serve thalassa --admin --profiler pyinstrument --autoreload

and visit: http://localhost:5006/admin

For more info, check here

Monitor panel processes

  1. Install sysstat
  2. Launch panel with e.g.: panel serve --log-level debug thalassa --port 9000 --num-procs 4
  3. Monitor the processes with: pidstat -C panel -T TASK -ru -h -p ALL --human 1

The last command will display something like this and will refresh every second:

# Time        UID       PID    %usr %system  %guest   %wait    %CPU   CPU  minflt/s  majflt/s     VSZ     RSS   %MEM  Command
04:33:58 PM  1000    952366    0.0%    0.0%    0.0%    0.0%    0.0%     6      0.00      0.00  712.4M  100.0M   0.7%  panel
04:33:58 PM  1000    952385    0.0%    0.0%    0.0%    0.0%    0.0%    14      0.00      0.00    1.5G  249.2M   1.6%  panel
04:33:58 PM  1000    952386    0.0%    0.0%    0.0%    0.0%    0.0%     4      0.00      0.00    1.5G  249.5M   1.6%  panel
04:33:58 PM  1000    952387    0.0%    0.0%    0.0%    0.0%    0.0%    12      0.00      0.00    1.5G  249.3M   1.6%  panel
04:33:58 PM  1000    952388    0.0%    0.0%    0.0%    0.0%    0.0%     8      0.00      0.00    1.5G  249.3M   1.6%  panel

# Time        UID       PID    %usr %system  %guest   %wait    %CPU   CPU  minflt/s  majflt/s     VSZ     RSS   %MEM  Command
04:33:59 PM  1000    952366    0.0%    0.0%    0.0%    0.0%    0.0%     6      0.00      0.00  712.4M  100.0M   0.7%  panel
04:33:59 PM  1000    952385    0.0%    0.0%    0.0%    0.0%    0.0%    14      0.00      0.00    1.5G  249.2M   1.6%  panel
04:33:59 PM  1000    952386    0.0%    0.0%    0.0%    0.0%    0.0%     4      0.00      0.00    1.5G  249.5M   1.6%  panel
04:33:59 PM  1000    952387    0.0%    0.0%    0.0%    0.0%    0.0%    12      0.00      0.00    1.5G  249.3M   1.6%  panel
04:33:59 PM  1000    952388    0.0%    0.0%    0.0%    0.0%    0.0%     8      0.00      0.00    1.5G  249.3M   1.6%  panel

The first process is the mother process and the rest are the child processes (i.e. workers)

When you open the page on the browser you should see one of the workers CPU/RAM usage get higher:

# Time        UID       PID    %usr %system  %guest   %wait    %CPU   CPU  minflt/s  majflt/s     VSZ     RSS   %MEM  Command
04:36:07 PM  1000    952366    0.0%    0.0%    0.0%    0.0%    0.0%     6      0.00      0.00  712.4M  100.0M   0.7%  panel
04:36:07 PM  1000    952385    0.0%    0.0%    0.0%    0.0%    0.0%    10      0.00      0.00    1.5G  249.6M   1.6%  panel
04:36:07 PM  1000    952386    0.0%    0.0%    0.0%    0.0%    0.0%     0      0.00      0.00    1.5G  259.8M   1.7%  panel
04:36:07 PM  1000    952387   19.0%   11.0%    0.0%    0.0%   30.0%    15  10721.00      0.00    2.0G  739.3M   4.8%  panel
04:36:07 PM  1000    952388    0.0%    0.0%    0.0%    0.0%    0.0%    10      0.00      0.00    1.5G  249.7M   1.6%  panel

# Time        UID       PID    %usr %system  %guest   %wait    %CPU   CPU  minflt/s  majflt/s     VSZ     RSS   %MEM  Command
04:36:08 PM  1000    952366    0.0%    0.0%    0.0%    0.0%    0.0%     6      0.00      0.00  712.4M  100.0M   0.7%  panel
04:36:08 PM  1000    952385    0.0%    0.0%    0.0%    0.0%    0.0%    10      0.00      0.00    1.5G  249.6M   1.6%  panel
04:36:08 PM  1000    952386    0.0%    0.0%    0.0%    0.0%    0.0%     0      0.00      0.00    1.5G  259.8M   1.7%  panel
04:36:08 PM  1000    952387   94.0%    6.0%    0.0%    0.0%  100.0%    15  21819.00      0.00    2.3G    1.0G   6.9%  panel
04:36:08 PM  1000    952388    0.0%    0.0%    0.0%    0.0%    0.0%    10      0.00      0.00    1.5G  249.7M   1.6%  panel
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