[Mesa-dev] Problem with RX 480 on Alien: Isolation and Dota 2

[Romain Failliot]

So I've activated a bunch of stuff:
GALLIUM_HUD="num-compilations,num-bytes-moved,num-evictions;fps,cpu;draw-calls,VRAM-usage"
and had one small freeze of around 2s.
Here is the screenshot (look at the fps drop and the concurrent num bytes
moved and num evictions):

https://framapic.org/GSwpilewir6u/BehgZbtf7axl.png

I'm not sure what these two properties mean... does it speak to you? Do you
think I should show any another property?
BTW I saw that I was pushing my GPU a bit too much as I was around 20 fps,
maybe that's the problem. I thought that the RX 480 was able to handle this
game with medium video options.

In the meantime I'll play more and try to get more screenshots of these
kind of situations.

Thanks!

2016-09-23 18:21 GMT-04:00 Romain Failliot <romain.failliot at foolstep.com>:

> Thanks Marek, I'll test that!
>
> In the meantime, firstly I fixed an important bug in Mesamatrix so now the
> matrix is more accurate, and I also just found the problem with Dota 2: it
> is not because of the new drivers but because of a change I did in the
> video options, I don't remember having done that but it was apparently in
> borderless window mode which GNOME doesn't handle very well apparently.
>
> Now that this is solved, I'll try to understand what's happening with
> Alien: Isolation.
>
> Thanks!
>
> 2016-09-21 7:36 GMT-04:00 Marek Olšák <maraeo at gmail.com>:
>
>> You can use the GALLIUM_HUD environment variable to find out the cause
>> of those hiccups. Just set it before running steam. Type
>> "GALLIUM_HUD=help glxgears" - that should print the available options.
>>
>> From the top of my head, the useful graphs are:
>> - num-evictions (TTM overhead as the number of buffers moved)
>> - num-bytes-moved (TTM overhead as the number of bytes moved)
>> - num-compilations (compiler invocations)
>>
>> There are also a bunch of useful things like various VRAM and GTT
>> usage stats, GPU-load, etc.
>>
>> Marek
>>
>> On Tue, Sep 20, 2016 at 1:25 AM, Romain Failliot
>> <romain.failliot at foolstep.com> wrote:
>> > 2016-09-19 18:40 GMT-04:00 Marek Olšák <maraeo at gmail.com>:
>> >> Do you mean the PC is frozen for 2 minutes or just occasional hiccups
>> >> for 2 minutes?
>> >
>> > Occasional hiccups for 2 minutes. The game works well, I wander around
>> > and, from time to time, it freezes for a random duration between 2
>> > seconds and 2 minutes (on average I'd say it's 30 seconds) and then
>> > the game continues like nothing happened (the sound still works during
>> > the freeze though).
>> >
>> > I played yesterday for instance and I had 10 minutes without any
>> > freeze and then 2 freezes in less than a minute. It's really random,
>> > but it seems to be related to the new places I visit, once I had one
>> > or more freezes in an area, I won't have the freeze a freeze in this
>> > area anymore. That's why I think it could be linked to shader
>> > compilation.
>>
>
>
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