I was curious whether v2 brings performance improvements as it doesn't rely on serde. So I decided to do a quick criterion benchmark and was kinda surprised when I saw the results.
As you can see on the screenshot below encoding is around 100x slower than v1 and decoding around 5-8x slower. I'm personally using bincode over other formats as I don't need human readable (de)serialization of my data but rather want it to be as fast as possible as my entire applications performance depends on it. So it would be nice if v2 doesn't have these performance drawbacks. Of course one could continue use the serde implementation (although I haven't tested the performance of serde in v2) but such a performance drawback in a crate like bincode should be considered as bug in my opinion, so I created this issue.
You can find the code here: https://github.com/JojiiOfficial/bincode_bench