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[Sylar] framework Chapter 23 summary of module chapter

2022-07-28 04:33:00 【Jianghu people call it pineapple bag】

Standing on the shoulders of giants

C++ High performance distributed server framework

Rewrite from scratch sylar C++ High performance distributed server framework

summary

Basic module is about 14 A module .
System Chapter 2 A module .
Frame performance test .

Log module

Logger、LogAppender、LogFormatter、LogEvent

Configuration module

ConfigBase、ConfigVar、Config
Convention over configuration .

Thread module

Thread、RWMutex、Mutex、Semaphore、SpinLock

Cooperation module

Fiber

Cooperative scheduling module

Scheduler

IO Cooperative scheduling module

IOManager(epoll)、TimerManager(epoll_wait)
The most important and complex module .

HOOK modular

FdManager、socket、connect
for example , coordination IO Used together with the process scheduling module , When socket Blocking during synchronous reading , The agreement gives up the right of execution （ Note that if there is no coordination process here , The blocked thread , The number of threads is limited ）, To achieve asynchronous IO The effect of .

Socket modular

Address、Socket

ByteArray modular

ByteArray
Solve the problem of byte order in network transmission 、 Compression issues .

Stream modular

Stream、SocketStream

TcpServer modular

TcpServer

HttpServer modular

HttpServer

Servlet modular

Servlet、NotFoundServlet、FunctionServlet
Abstract the logic of the server , A path maps to a Servlet.

HttpConnection modular

HttpConnection、HttpConnectionPool
HttpConnectionPool It is aimed at long connection scenarios .

System

The system chapter includes the following contents , But to sum up, there are two modules （ Daemon module and environment variable module ）：
- Daemon
- Start parameter resolution
- environment variable
- Configuration is loaded
- Application

Pressure test

Pressure measuring tool AB
```
yum install -y httpd-tools
```
Compile options -O3, Best performance .
Pay attention to whether there are restrictions socket Handle, etc
```
ulimit -a
```
Pressure measurement sylar Framework applet ：examples/my_http_server.cc
Pay attention to turn off the firewall
```
service firewalld stop
```

ab Use

ab --help

ab -n 1000000 -c 200 "http://192.168.60.138:8020/sylar"
ab -n 1000000 -c 200 -k "http://192.168.60.138:8020/sylar"
-n  How many requests 
-c  How many connections 
-k  It's a long connection .

test result ：
- Short link ：Requests per second: 31714.17 [#/sec] (mean)
- Long link ：Requests per second: 62924.43 [#/sec] (mean)

and nginx Compare

sudo yum install epel-release
sudo yum update
sudo yum install -y nginx		
sudo nginx							//  start-up nginx, The default is 80 port 
sudo netstat -anp | grep nginx		// nginx stay 80 port 

ab -n 1000000 -c 200 "http://192.168.60.138:80/sylar"
ab -n 1000000 -c 200 -k "http://192.168.60.138:80/sylar"

test result ：
- Short link ：Requests per second: 12548.61 [#/sec] (mean)
- Long link ：Requests per second: 92893.75 [#/sec] (mean)

and libevent Compare （sylar tested , I didn't test ）

wget xxx.com/libtool.tar.xz		// libtool yes automake Common tools 
 Install to your own path /apps/..

git clone https://github.com/libevent/libevent.git
cd libevent
./autogen.sh
 Install to your own path /apps/..
cd sample		//  There are examples 

./http-server -p 8030 .

Other gadgets

top -H -p 5066(pid)			//  Look at the operation of the thread 

yum install -y net-tools	//  install netstat

netstat -ntlap | grep 5066 | wc -l	//  The number of connections