saf

saf application framework

特点

1:基于google protobuf的rpc框架;
2:内置简单的http server用于查看系统状态;
3:模块化的管理,只用在lib中增加动态库就可以达到增加rpc service的目的;
4:sdk支持同步和异步调用模式、断线自动重连、调用超时设置;(查看example/rpcping/client.cc)

结构

                                                             +--------------+
+-----------+      +------------+                           /|              |
|           |      |            |                          / | Handle Thread| --->-
|Net Thread \----->|   Decode   |\                        /  +--------------+     |
+-----------+\     +------------+ \  +-----------------+ /   +--------------+     |
              \                    \>|                 |/    |              |     |
               \                   />|      queue      +-----+ Handle Thread+---->+
+-----------+   \  +------------+ /  +-----------------+\    +--------------+     |
|           |    \ |            |/                       \   +--------------+     |
|Net Thread +----+>+   Decode   /                         \  |              |     |
+-----------+     \+------------+                          \ | Handle Thread|     |
          \        \                                         +---------+----+     |
           \        \                                                  |          |
            \        \                                                 |          |
             \     +--\---------+                                      |          |
              \    |            |<-------------------------------------+          |
               \   |   Encode   |                                                 |
                \  +------------+                                                 |
                 \ +------------+                                                 |
                  \|            |                                                 |
                   \   Encode   +<------------------------------------------------+
                   +------------+

编译例子

它依赖protobuf公共库,所以先安装protobuf3.0及以上版本，安装protobuf参照：

https://github.com/google/protobuf

1:下载源码

git clone --recursive https://github.com/sails/saf.git

2:编译:

make depends
make;make deploy;

3:编译测试样例:

make examples

4:配置测试程序(conf/saf.json):

"modules" : [{"name":"test", "path":"../lib/service_test.so"}]

5:运行测试,比如运行echo_sync:

./bin/saf
./example/echo_sync/client

性能

测试一

编译选项：-O0, 四核八线程cpu 服务端和客户端都运行在这台电脑上,每个客户端同步调用10w次

| net thread | handle thread | clients |  times |    tps |
|------------+---------------+---------+--------+--------|
|          1 |             1 |       1 |  9.097 |  11000 |
|          1 |             1 |      30 | 37.986 |  79000 |
|          2 |             1 |      30 | 33.872 |  88000 |
|          2 |             2 |      30 | 22.302 | 135000 |
|          2 |             4 |      60 | 37.841 | 158000 |
|          3 |             3 |      60 | 34.312 | 175000 |
|          4 |             4 |     100 | 50.117 | 200000 |
|          4 |             8 |     100 | 48.383 | 207000 |

通过测试可知，在一台普通的四核八线程服务器上，基本上能达到20w/s的速度 (单独测试protobuf时，单线程处理10w次序列化和反序列化用时2s)

统计

内置http服务器的默认绑定在端口8001上,所以可以通过输入localhost:8001/stat来查看统计信息: