Faster Charset Decoding
Posted on February 24, 2021
Recently I was doing some minor OpenJDK improvements around how we turn byte[]s into Strings - including removing the StringCoding.Result struct and reducing overhead of some legacy CharsetDecoders. When experimenting in this area I stumbled upon a performance discrepancy: new String(bytes, charset) is often many times faster than creating the same String via an InputStreamReader, much more than seemed reasonable at first glance.…
More at https://cl4es.github.io/2021/02/23/Faster-Charset-Decoding.html