RFR: 8315098: Improve URLEncodeDecode microbenchmark [v2]

Wed Aug 30 15:28:39 UTC 2023

On Wed, 30 Aug 2023 14:09:45 GMT, Daniel Fuchs <dfuchs at openjdk.org> wrote:

> Idle musing: I wonder if it would be useful to print on System.out how many strings actually have no encoded chars? Just to get a rough feeling on whether the percentage values were actually respected.

Good call, since I had gotten the distribution wrong for decode with `unchanged` set to a value like 75 by recalculating `needDecoding` for every char. Also improved the precision for `unchanged == 0`.

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PR Comment: https://git.openjdk.org/jdk/pull/15448#issuecomment-1699391212