From 4d8a9629a6f49f57adfa420a7196e5967677f10f Mon Sep 17 00:00:00 2001 From: Takoroka <137927095+Takoroka@users.noreply.github.com> Date: Sat, 31 Oct 2026 01:30:46 -0400 Subject: texture_cache: collect from 5 GiB of device memory on every GPU The collector's thresholds follow the card's size and budget (critical at budget - 768 MiB), so the cache keeps textures of earlier scenes until the card is nearly full: Mario Kart World used 6.7 GB of an 8 GB card, and more on larger cards. Cap the critical threshold at 5 GiB (and expected/minimum below it) whatever the card. Same build, back to back: peak device memory 6.7 -> 5.6 GB, frames over 100 ms 114 -> 64 in six minutes, average frame time unchanged. The EDEN_NX2_TC_*_MIB overrides still apply. --- src/video_core/texture_cache/texture_cache.h | 8 ++++++++ src/video_core/texture_cache/texture_cache_base.h | 3 +++ 2 files changed, 11 insertions(+) (limited to 'src/video_core/texture_cache') diff --git a/src/video_core/texture_cache/texture_cache.h b/src/video_core/texture_cache/texture_cache.h index 63abffed0f..bd5f7debfb 100644 --- a/src/video_core/texture_cache/texture_cache.h +++ b/src/video_core/texture_cache/texture_cache.h @@ -185,6 +185,14 @@ void TextureCache

::RunGarbageCollector() { template void TextureCache

::ApplyThresholdOverrides(bool log) { + // On every GPU: past what a frame needs, more device memory only keeps the textures of earlier + // scenes (title 1 filled 6.7 GB of an 8 GB card and draws its races in ~5 GB), so collect from + // MaxCriticalMemory on rather than near the card's budget. + critical_memory = (std::min)(critical_memory, MaxCriticalMemory); + expected_memory = + (std::min)(expected_memory, critical_memory - (std::min)(critical_memory, u64{768_MiB})); + minimum_memory = + (std::min)(minimum_memory, expected_memory - (std::min)(expected_memory, u64{1_GiB})); // EDEN_NX2_TC_EXPECTED_MIB / EDEN_NX2_TC_CRITICAL_MIB override the collector's thresholds. for (const auto& [name, target] : {std::pair{"EDEN_NX2_TC_EXPECTED_MIB", &expected_memory}, std::pair{"EDEN_NX2_TC_CRITICAL_MIB", &critical_memory}}) { diff --git a/src/video_core/texture_cache/texture_cache_base.h b/src/video_core/texture_cache/texture_cache_base.h index 11e95f98b3..660203f172 100644 --- a/src/video_core/texture_cache/texture_cache_base.h +++ b/src/video_core/texture_cache/texture_cache_base.h @@ -144,6 +144,9 @@ class TextureCache : public VideoCommon::ChannelSetupCaches