netty pooled vs unpooled ByteBuf

最新推荐文章于 2024-10-20 19:32:57 发布

creator123123

最新推荐文章于 2024-10-20 19:32:57 发布

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本文链接：https://blog.youkuaiyun.com/creator123123/article/details/103622633

本文深入探讨了Netty中ByteBuf的池化(Pooled)与非池化(Unpooled)的区别，以及直接(Heap)与堆外(Direct)内存的使用场景。详细解释了池化如何通过重复利用缓冲区来减少内存分配和释放的开销，特别是在处理大量数据传输时的优势。

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Whats the difference between Pooled vs Unpooled and Direct vs Heap in ByteBuf?

Like , what does pooled means in context of a message received , because object like HttpRequest is created from ByteBuf in one of HttpRequestDecoder and then released in last handler of pipeline ? Whats pooled memory in this case? How memory management will differ for pooled vs unpooled ?

The difference is that with unpooled Netty will allocate a new buffer everytime you call ByteBufAllocator.buffer which comes with some overhead, especially with direct buffers. When you use pooled Netty will try to pool the buffers and so minimize the overhead of allocation and releasing of buffers.