如何减少垃圾产生量？ [英] How to reduce netty garbage production?

问题描述

我的网络应用程序处理使用netty框架编写的约40k msg / sec，并且我想减少垃圾回收器调用的数量。分析时，我发现有大量的 byte [] 实例，我怀疑它来自这部分代码：

$ b $ public class MessageHandler extends SimpleChannelHandler {
$ b $ public void messageReceived（ChannelHandlerContext ctx，final MessageEvent e）{

ChannelBuffer message =（ChannelBuffer）e.getMessage（）;
}

}

是否可以强制netty重复使用/池 ChannelBuffers 以某种方式防止它每次都构造它们？

解决方案

<我们计划实施缓冲池，但尚未完成。

请参阅 https://github.com/netty/netty/issues/62

I have network application that handles about 40k msg/sec written using netty framework and I want to reduce the number of garbage collector calls. While profiling I found that there is significant amount of byte[] instances and I suspect that it comes from this part of code :

public class MessageHandler extends SimpleChannelHandler {

public void messageReceived(ChannelHandlerContext ctx, final MessageEvent e) {

    ChannelBuffer message = (ChannelBuffer) e.getMessage();
}

}

Is it possible to force netty to reuse/pool ChannelBuffers somehow to prevent it to construct them every time?

解决方案

We plan to implement pooling of buffers, but its not done yet.

See https://github.com/netty/netty/issues/62

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