From 5ff9977572e7f82572432388324c2d62e3ad78b8 Mon Sep 17 00:00:00 2001
From: winlin <winlin@vip.126.com>
Date: Wed, 24 Feb 2021 20:56:17 +0800
Subject: [PATCH] Perf: Improve fast find for pithy print
---
trunk/src/app/srs_app_pithy_print.cpp | 11 +++++++++--
trunk/src/app/srs_app_pithy_print.hpp | 1 +
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/trunk/src/app/srs_app_pithy_print.cpp b/trunk/src/app/srs_app_pithy_print.cpp
index f408d08c5..ebf70def8 100644
--- a/trunk/src/app/srs_app_pithy_print.cpp
+++ b/trunk/src/app/srs_app_pithy_print.cpp
@@ -171,6 +171,7 @@ static SrsStageManager* _srs_stages = new SrsStageManager();
SrsPithyPrint::SrsPithyPrint(int _stage_id)
{
stage_id = _stage_id;
+ cache_ = NULL;
client_id = enter_stage();
previous_tick = srs_get_system_time();
_age = 0;
@@ -308,7 +309,10 @@ void SrsPithyPrint::leave_stage()
void SrsPithyPrint::elapse()
{
- SrsStageInfo* stage = _srs_stages->fetch_or_create(stage_id);
+ SrsStageInfo* stage = cache_;
+ if (!stage) {
+ stage = cache_ = _srs_stages->fetch_or_create(stage_id);
+ }
srs_assert(stage != NULL);
srs_utime_t diff = srs_get_system_time() - previous_tick;
@@ -321,7 +325,10 @@ void SrsPithyPrint::elapse()
bool SrsPithyPrint::can_print()
{
- SrsStageInfo* stage = _srs_stages->fetch_or_create(stage_id);
+ SrsStageInfo* stage = cache_;
+ if (!stage) {
+ stage = cache_ = _srs_stages->fetch_or_create(stage_id);
+ }
srs_assert(stage != NULL);
return stage->can_print();
diff --git a/trunk/src/app/srs_app_pithy_print.hpp b/trunk/src/app/srs_app_pithy_print.hpp
index 0fa3b6da2..bc966db98 100644
--- a/trunk/src/app/srs_app_pithy_print.hpp
+++ b/trunk/src/app/srs_app_pithy_print.hpp
@@ -111,6 +111,7 @@ class SrsPithyPrint
{
private:
int client_id;
+ SrsStageInfo* cache_;
int stage_id;
srs_utime_t _age;
srs_utime_t previous_tick;