Those are just memory management stats. Linux 4.9 will contain optimizations that should prevent such fps drops.
Marek On Sep 24, 2016 2:23 AM, "Romain Failliot" <romain.faill...@foolstep.com> wrote: > 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.faill...@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 <mar...@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.faill...@foolstep.com> wrote: >>> > 2016-09-19 18:40 GMT-04:00 Marek Olšák <mar...@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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