diff options
| author | lizzie <lizzie@eden-emu.dev> | 2026-02-10 03:34:07 +0100 |
|---|---|---|
| committer | crueter <crueter@eden-emu.dev> | 2026-02-10 03:34:07 +0100 |
| commit | a8093c2a3cf98ccccabeb1d6a2c1ccc5e191557f (patch) | |
| tree | d967e61fe889c2c39aa9e3b751927ffa25f1a19e /.patch | |
| parent | 0f8b35c4cd0f8d09b38edc52b006472cd98540fc (diff) | |
[*] 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>
Diffstat (limited to '.patch')
| -rw-r--r-- | .patch/unordered-dense/0001-avoid-memset-when-clearing-an-empty-table.patch | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/.patch/unordered-dense/0001-avoid-memset-when-clearing-an-empty-table.patch b/.patch/unordered-dense/0001-avoid-memset-when-clearing-an-empty-table.patch new file mode 100644 index 0000000000..f7d7c7ebe2 --- /dev/null +++ b/.patch/unordered-dense/0001-avoid-memset-when-clearing-an-empty-table.patch @@ -0,0 +1,26 @@ +From b3622608433c183ba868a1dc8dd9cf285eb3b916 Mon Sep 17 00:00:00 2001 +From: Dario Petrillo <dario.pk1@gmail.com> +Date: Thu, 27 Nov 2025 23:12:38 +0100 +Subject: [PATCH] avoid extra memset when clearing an empty table + +--- + include/ankerl/unordered_dense.h | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/include/ankerl/unordered_dense.h b/include/ankerl/unordered_dense.h +index 0835342..4938212 100644 +--- a/include/ankerl/unordered_dense.h ++++ b/include/ankerl/unordered_dense.h +@@ -1490,8 +1490,10 @@ class table : public std::conditional_t<is_map_v<T>, base_table_type_map<T>, bas + // modifiers ////////////////////////////////////////////////////////////// + + void clear() { +- m_values.clear(); +- clear_buckets(); ++ if (!empty()) { ++ m_values.clear(); ++ clear_buckets(); ++ } + } + + auto insert(value_type const& value) -> std::pair<iterator, bool> { |