using sysprof under Ubuntu

[Michael Gratton <mike vee net>]

Hey all,

I'm trying to use Sysprof to profile Geary under Ubuntu 17.10, but 
can't get any useful results out of it — the only function that ever 
shows up is "acpi_video_register". A typical call trace will look like:

> [./geary]                        0.00% 8.99%
>    acpi_video_register     Linux 8.99% 8.99%
>      --kernel--                  0.00% 0.00%

Regardless which app is selected or if it is launched via sysprof or is 
already running. The sysprof2 service is being launched when record is 
pressed after being prompted for my password, and neither sysprof nor 
sysprofd outputs any messages at all to the journal while running.

The docs suggest that I need to load a sysprof module into the kernel, 
but Ubuntu doesn't seem to ship one. Is the module still needed?

Cheers,
//Mike

--
⊨ Michael Gratton, Percept Wrangler.
⚙ <http://mjog.vee.net/>