From 072bbba69aa2528c309b76aaec288bdba52e119c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Lo=C3=AFc=20Blot?= Date: Wed, 22 Mar 2017 21:41:02 +0100 Subject: Some performance optimizations (#5424) * Some performance optimizations This is globally removing some memory useless copy * use a const ref return on std::string Settings::get to prevent data copy on getters which doesn't need to copy it * pass some stack created strings to static const as they are not modified anywhere * Camera: return nametags per const ref instead of a list pointer, we only need to read it * INodeDefManager: getAll should be a result ref writer instead of a return copy * INodeDefManager: getAlias should return a const std::string ref * Minimap: unroll a Scolor creation in blitMinimapPixersToImageRadar to prvent many variable construct/destruct which are unneeded (we rewrite the content in the loop) * CNodeDefManager::updateAliases: prevent a idef getall copy * Profiler: constness * rollback_interface: create real_name later, and use const ref * MapBlockMesh updateFastFaceRow: unroll TileSpec next_tile, which has a cost of 1.8% CPU due to variable allocation/destruction, * MapBlockMesh updateFastFaceRow: copy next_tile to tile only if it's a different tilespec * MapBlockMesh updateFastFaceRow: use memcpy to copy next_lights to lights to do it in a single cpu operation --- src/remoteplayer.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/remoteplayer.cpp') diff --git a/src/remoteplayer.cpp b/src/remoteplayer.cpp index 0a4591410..c8e5b9132 100644 --- a/src/remoteplayer.cpp +++ b/src/remoteplayer.cpp @@ -141,7 +141,7 @@ void RemotePlayer::deSerialize(std::istream &is, const std::string &playername, m_dirty = true; //args.getS32("version"); // Version field value not used - std::string name = args.get("name"); + const std::string &name = args.get("name"); strlcpy(m_name, name.c_str(), PLAYERNAME_SIZE); if (sao) { @@ -167,7 +167,7 @@ void RemotePlayer::deSerialize(std::istream &is, const std::string &playername, } catch (SettingNotFoundException &e) {} try { - std::string extended_attributes = args.get("extended_attributes"); + const std::string &extended_attributes = args.get("extended_attributes"); Json::Reader reader; Json::Value attr_root; reader.parse(extended_attributes, attr_root); -- cgit v1.2.3