Comment # 15
on bug 84662
from Chernovsky Oleg
Created attachment 107438 [details] bad gtt usage (Borderlands 2) (In reply to smoki from comment #11) > (In reply to Chernovsky Oleg from comment #9) > > I experience the same freezes (1-1.3 sec) every 10 sec in any Valve Source > > engine-based games. > > Well open a new bug, sttuter/freezes can be of varios cause... hardware > combinations, APU or dedicated card, on AMD procesor on Intel so what > governor used, composite or not, vblank on or not, spilling freezes, some > particular effect unoptimized, etc... so various causes could be, this one > is i think only about GTT load and fps drop because of that, so if you are > sure it is because of that (check with GALLIUM_HUD=fps,GTT-usage) than that > is the same bug. I know what I'm talking about. It's this bug, so I've written here. Here's the proof (Unreal Engine 3, though, I can provide it with any Valve game at will). Spikes on the GTT usage have corresponding falls of the FPS. Radeon R7 260X (BONAIRE)
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