run_benchmark 程序入口

First , create the cg_thread instances in the vector threads and then call each cg_thread’s prepare() function of them.

Subsequently, launch each thread in the vector threads

cg_thread

m_base = event_base_new() // line 528
一个client_group 拥有一个m_base

cg_thread key functions

prepare(void)

start()
join()

create_clients(int num)

creating num clients and push them into the m_clients.

client.cpp contrutor function

If creating clients succssfully , go back to the prepare function in memtier_benchmark.cpp

client.cpp 通过 MAIN_CONNECTION 连接服务器完成IP连接
#define MAIN_CONNECTION m_connections[0]

cg_thread_start

m_thread 是 pthread 结构体，将cg_thread (this)本身传进去