[Bug 107277] Raven: pci_pm_suspend takes over 1 second

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=107277

--- Comment #8 from Paul Menzel <pmenzel+bugs.freedesktop at molgen.mpg.de> ---
(In reply to Michel Dänzer from comment #7)
> (In reply to Paul Menzel from comment #6)
> > I increased the maximum depth to 10,
> 
> Can you attach the resulting HTML output, or is it too large?

With a max-depth of 10 it’s too large, and even with 16 GB memory the browser
takes ages to render it. I can try to trim the trace file. It should be
possible to filter stuff, but I haven’t figured out how to pass the device.

Though, you can easily try it yourself.

```
$ git clone https://github.com/01org/pm-graph
$ cd pm-graph
$ vim config/suspend-callgraph.cfg # change maxdepth to 10
$ sudo ./sleepgraph.py -config config/suspend-callgraph.py
# wait
$ ls -ltr # shows you the output directory
```

It normally easier to look at the trace file directly.

> > and according to the trace the loop in `gfx_v9_0_enter_rlc_safe_mode()` is the culprit. 
> 
> Can you find out if the loop times out or not?

I’ll try.

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