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.


On Tue, Sep 20, 2016 at 1:25 AM, Romain Failliot
<> wrote:
> 2016-09-19 18:40 GMT-04:00 Marek Olšák <>:
>> 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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