On Mon, 30 Jun 2025 23:57:45 GMT, Brett Okken <d...@openjdk.org> wrote:
> What about a benchmark which exercises the actual benefits of buffering? So > many very small writes to a backing OutputStream which is (artificially) > slow. Perhaps have an OutputStream which sleeps 1ms on every call. The write > out more than 8k of data in chunks of less than 8 chars at a time. In fact, StreamEncoder has a ByteBuffer that acts as a buffer, so when BufferedBuffer::out is an OutputStreamWirter encoded as UTF8, there is no need for two layers of buffer. class BufferedWriter { Writer out } class OutputStreamWriter { StreamEncoder se; } class StreamEncoder { ByteBuffer bb; } We often use it like this: new BufferedWriter(new OutputStreamWriter(out, UTF_8))) ------------- PR Comment: https://git.openjdk.org/jdk/pull/26022#issuecomment-3021227716