On Mon, 30 Jun 2025 23:57:45 GMT, Brett Okken <[email protected]> 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)))
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PR Comment: https://git.openjdk.org/jdk/pull/26022#issuecomment-3021227716
