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

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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>
This commit is contained in:
lizzie 2026-02-10 03:34:07 +01:00 • committed by crueter
parent 0f8b35c4cd
commit a8093c2a3c
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GPG key ID: 425ACD2D4830EBC6
87 changed files with 368 additions and 254 deletions
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9
src/core/file_sys/vfs/vfs_layered.cpp
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@ -1,9 +1,12 @@
// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later
// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include <set>
#include <unordered_set>
#include <ankerl/unordered_dense.h>
#include <utility>
#include "core/file_sys/vfs/vfs_layered.h"
@ -60,7 +63,7 @@ std::string LayeredVfsDirectory::GetFullPath() const {
std::vector<VirtualFile> LayeredVfsDirectory::GetFiles() const {
std::vector<VirtualFile> out;
std::unordered_set<std::string> out_names;
ankerl::unordered_dense::set<std::string> out_names;
for (const auto& layer : dirs) {
for (auto& file : layer->GetFiles()) {
@ -76,7 +79,7 @@ std::vector<VirtualFile> LayeredVfsDirectory::GetFiles() const {
std::vector<VirtualDir> LayeredVfsDirectory::GetSubdirectories() const {
std::vector<VirtualDir> out;
std::unordered_set<std::string> out_names;
ankerl::unordered_dense::set<std::string> out_names;
for (const auto& layer : dirs) {
for (const auto& sd : layer->GetSubdirectories()) {