How to understand the memory alignment class SizeClasses in Netty source code parsing

This article mainly introduces "Netty source code parsing how to understand memory alignment class SizeClasses", in the daily operation, I believe that many people have doubts about how to understand memory alignment class SizeClasses in Netty source code parsing. Xiaobian consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the doubt of "Netty source code parsing how to understand memory alignment class SizeClasses". Next, please follow the editor to study!

Before learning about the Netty memory pool, let's take a look at Netty's memory alignment class SizeClasses, which provides services such as size alignment, index calculation, and so on, for memory blocks in the Netty memory pool.

Source code analysis based on Netty 4.1.52

Each memory block size in the Netty memory pool conforms to the following calculation formula

Size = 1