[*] change all std::unordered_map and std::unordered_set into ankerl::unordered_dense::map/set variants (#3442)

mainly doing this to reduce memory footprint; we all know how nice ankerl::unordered_dense is

in theory 4x faster - in practice these maps arent that "hot" anyways so not likely to have much perf gained

i just want to reduce mem fragmentation to ease my porting process, plus it helps other platforms as well (ahem weak Mediatek devices) :)

Signed-off-by: lizzie <lizzie@eden-emu.dev>

Co-authored-by: Caio Oliveira <caiooliveirafarias0@gmail.com>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3442
Reviewed-by: DraVee <dravee@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

2 files changed, 4 insertions, 4 deletions

diff --git a/src/video_core/buffer_cache/buffer_cache_base.h b/src/video_core/buffer_cache/buffer_cache_base.h
index ed50634683..3c0bc81758 100644
--- a/src/video_core/buffer_cache/buffer_cache_base.h
+++ b/src/video_core/buffer_cache/buffer_cache_base.h
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
@@ -14,7 +14,7 @@
 #include <mutex>
 #include <numeric>
 #include <span>
-#include <unordered_map>
+#include <ankerl/unordered_dense.h>
 #include <vector>
 
 #include "common/common_types.h"
diff --git a/src/video_core/buffer_cache/memory_tracker_base.h b/src/video_core/buffer_cache/memory_tracker_base.h
index 4181b0ae54..2c571271d6 100644
--- a/src/video_core/buffer_cache/memory_tracker_base.h
+++ b/src/video_core/buffer_cache/memory_tracker_base.h
@@ -11,7 +11,7 @@
 #include <deque>
 #include <limits>
 #include <type_traits>
-#include <unordered_set>
+#include <ankerl/unordered_dense.h>
 #include <utility>
 
 #include "common/alignment.h"
@@ -257,7 +257,7 @@ private:
     std::array<Manager*, NUM_HIGH_PAGES> top_tier{};
     std::deque<std::array<Manager, MANAGER_POOL_SIZE>> manager_pool;
     std::deque<Manager*> free_managers;
-    std::unordered_set<u32> cached_pages;
+    ankerl::unordered_dense::set<u32> cached_pages;
     DeviceTracker* device_tracker = nullptr;
 };