diff options
Diffstat (limited to 'indra/newview/llviewertexture.cpp')
| -rw-r--r-- | indra/newview/llviewertexture.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/indra/newview/llviewertexture.cpp b/indra/newview/llviewertexture.cpp index 0f9c65893d..f1c0a4f0fc 100644 --- a/indra/newview/llviewertexture.cpp +++ b/indra/newview/llviewertexture.cpp @@ -505,8 +505,12 @@ void LLViewerTexture::updateClass() F32 budget = max_vram_budget == 0 ? (F32)gGLManager.mVRAM : (F32)max_vram_budget; - // try to leave half a GB for everyone else, but keep at least 768MB for ourselves - F32 target = llmax(budget - 512.f, MIN_VRAM_BUDGET); + // Try to leave at least half a GB for everyone else and for bias, + // but keep at least 768MB for ourselves + // Viewer can 'overshoot' target when scene changes, if viewer goes over budget it + // can negatively impact performance, so leave 20% of a breathing room for + // 'bias' calculation to kick in. + F32 target = llmax(llmin(budget - 512.f, budget * 0.8f), MIN_VRAM_BUDGET); sFreeVRAMMegabytes = target - used; F32 over_pct = (used - target) / target; @@ -522,7 +526,7 @@ void LLViewerTexture::updateClass() // slam to 1.5 bias the moment we hit low memory (discards off screen textures immediately) sDesiredDiscardBias = llmax(sDesiredDiscardBias, 1.5f); - if (is_sys_low) + if (is_sys_low || over_pct > 2.f) { // if we're low on system memory, emergency purge off screen textures to avoid a death spiral LL_WARNS() << "Low system memory detected, emergency downrezzing off screen textures" << LL_ENDL; for (auto& image : gTextureList) |