RFR: 8310843: Reimplement ByteArray and ByteArrayLittleEndian with Unsafe [v10]

Glavo duke at openjdk.org
Thu Jul 20 15:45:42 UTC 2023


On Thu, 20 Jul 2023 15:34:33 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> > it's likely to introduce non-trivial additional overhead
> 
> What do you mean? E.g. where would the overhead come from?

You suggested changes stored the ByteBuffer into a field. I measured throughput with JMH, and it shows that using ByteBuffer like this results in over 50% drop in throughput.

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PR Review Comment: https://git.openjdk.org/jdk/pull/14636#discussion_r1269653896


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