Comment # 11
on bug 88227
from James Harvey
Hello Marek, My memory info: [ 1.879493] [drm] radeon: 2048M of VRAM memory ready [ 1.879494] [drm] radeon: 2048M of GTT memory ready. I also have 8gb of system memory. I patched radeon_drm_winsys.c as per your suggestion. This seemed to work well: - (ws->info.vram_size + ws->info.gart_size) / 8); + (ws->info.vram_size + ws->info.gart_size) / 2); I tried changing the divisor to 4, but that didn't help much. Divisor at 3 was better but still had some fps drops to zero and trouble getting above about 40fps. Divisor at 2 was much better, fps drops only when waiting for data to load in memory. (such as suddenly zooming out or saving/loading game). While testing, the maximum GTT usage I saw was 1.82gb, with typical usage around 1-1.5gb depending on how closely the map was zoomed in. Vram usage is pretty flat, usually around 450mb.
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