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perf(gameplay): optimize protobuf message allocation with Arena and limit thread pool size

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Switch to Arena allocation for protobuf messages to reduce heap allocations. Pass ChunkDataRsp by value to enable move semantics. Cap thread pool size to hardware concurrency with max 4 threads.
This commit is contained in:
zhenyan121
2026-06-26 21:52:57 +08:00
parent d31ec68f3c
commit 932ef9ace4
5 changed files with 106 additions and 84 deletions
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45
src/gameplay/client_world.cpp
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@@ -5,6 +5,7 @@
#include "Cubed/gameplay/packet.hpp"
using namespace std::chrono;
using namespace std::chrono_literals;
using namespace google::protobuf;
namespace Cubed {
namespace {
@@ -170,14 +171,15 @@ void ClientWorld::push_delete_vao(GLuint vao) {
void ClientWorld::report_block_change(const glm::ivec3& pos,
unsigned id) const {
BlockChangeReq req;
req.set_uuid(m_player.get_uuid());
req.set_block(id);
auto* p = req.mutable_pos();
Arena arena;
auto* req = Arena::Create<BlockChangeReq>(&arena);
req->set_uuid(m_player.get_uuid());
req->set_block(id);
auto* p = req->mutable_pos();
p->set_x(pos.x);
p->set_y(pos.y);
p->set_z(pos.z);
m_client->send(make_packet(req));
m_client->send(make_packet(*req));
}
void ClientWorld::receive_block_change(const BlockChangeRsp& rsp) {
@@ -254,7 +256,11 @@ void ClientWorld::stop_client_thread() {
}
m_game_running = false;
}
void ClientWorld::start_thread_pool() { change_pool_threads(1); }
void ClientWorld::start_thread_pool() {
int max_threads = std::thread::hardware_concurrency();
int threads = std::min<size_t>(max_threads, 4);
change_pool_threads(threads);
}
void ClientWorld::stop_thread_pool() {
auto pool_ptr = m_thread_pool.load();
if (pool_ptr) {
@@ -301,14 +307,15 @@ void ClientWorld::report_player_pos() {
if (!m_client) {
return;
}
PlayerPos pos;
pos.set_uuid(m_player.get_uuid());
Arena arena;
auto* pos = Arena::Create<PlayerPos>(&arena);
pos->set_uuid(m_player.get_uuid());
glm::vec3 player_pos = m_player.get_player_pos();
auto* v3 = pos.mutable_pos();
auto* v3 = pos->mutable_pos();
v3->set_x(player_pos.x);
v3->set_y(player_pos.y);
v3->set_z(player_pos.z);
m_client->send(make_packet(pos));
m_client->send(make_packet(*pos));
}
void ClientWorld::request_chunk() {
@@ -379,18 +386,19 @@ void ClientWorld::request_chunk() {
}
}
auto uuid = m_player.get_uuid();
ChunkDataReq req;
Arena arena;
auto* req = Arena::Create<ChunkDataReq>(&arena);
for (const auto& pos : need_send_pos) {
req.set_uuid(uuid);
auto* p = req.mutable_pos();
req->set_uuid(uuid);
auto* p = req->mutable_pos();
p->set_x(pos.x);
p->set_z(pos.z);
m_client->send(make_packet(req));
m_client->send(make_packet(*req));
}
m_requesting_chunk = false;
}
void ClientWorld::receive_chunk(const ChunkDataRsp& data) {
void ClientWorld::receive_chunk(ChunkDataRsp data) {
{
std::lock_guard lock(m_chunks_mutex);
@@ -418,9 +426,10 @@ void ClientWorld::receive_chunk(const ChunkDataRsp& data) {
}
void ClientWorld::exit() {
LogoutReq req;
req.set_uuid(m_player.get_uuid());
m_client->send(make_packet(req));
Arena arena;
auto* req = Arena::Create<LogoutReq>(&arena);
req->set_uuid(m_player.get_uuid());
m_client->send(make_packet(*req));
}
void ClientWorld::update(float delta_time) {