A lightweight, asynchronous event-driven network application framework in C++.
- Reactors with worker pool. YoHub supports multiple reactors, each reactor will deliver its active events to the worker pool for execution. Reactor and worker pool are both configurable that allow you to build your robust network application.
- Asynchronous model. The asynchronous programming model is inspired from kylin, yohub only notifies the client after the completion of I/O operations. Since the event loop is separated from the worker pool, edge-triggered readiness notification model is chosen for yohub. Nevertheless, edge-triggered readiness notification makes real-time response be possible and makes event handling be more efficient when cooperated with worker pool.
- Thread safe. Synchronous id (
sync-idfor short) is introduced to yuhub. Eachsockfdis associated with such async-id, and eachsync-idis binded to a consistent thread. In this way, yohub is able to reduce the usage of synchronization primitives (ie.mutex lock), thus has improved the throughput. - Smart pointer for connections. For most scenarios, yohub uses
shared_ptrto automatic memory management, which is inspired from muduo. YoHub takes advantage of smart pointers which can help us take care of the life cycle of those asychronous connections, and has greatly reduced our programming burden.
YoHub is designed to be a high-performance network application framework, which can be used to solve the C100K problem. The benchmark pragram is token from the libevent-1.4.14b distribution, modified to compatible with the event pool in yohub. Both libevent and yohub are configured to use the epoll interface and run on a Core4 Quad CPU at 2.5GHz with Ubuntu 12.04 operating system.
- 100 active clients.
- 1000 active clients.
The benchmark program takes the paramter -n equals to -w, which means every client will be notified to read and wirte. The report of our benchmark shows that yohub has lower costs than libevent-1.4.14b. With the increment of the file descriptor, this advantage can be obviously seen in above pictures.
To use yohub, boost library is required to be installed in your machine. After that:
$ git clone git@github.com:kedebug/yohub.git
$ cd yohub
$ cmake . && makePlease see the files under yohub/demo/ directory for further usage.
The MIT License (MIT)
Copyright (c) 2014 kedebug
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