Claude 729fb1bc17 perf(quartz): hoist lookup tables in Hex.decode/encode/isEqual/readLong; bench new codecs ...

javap showed the hexToByte/byteToHex field re-loaded on every use inside
these methods (16 times per readLong call) — the JVM/ART doesn't reliably
prove the load loop-invariant. Hoisting it into a local measured ~25%
faster for decode and ~10% for isEqual and readLong on the JVM
(4096 random 32-byte ids, best-of-150 rounds, 3 repeats); encode was
neutral on HotSpot but is hoisted too since ART is historically worse
at this (see the internalIsHex comment).

Branchless variants of isHex/isHex64 were also measured and were a
wash-to-slightly-worse than the branchy early-exit versions on valid
input, so those keep their current implementations.

Also adds the new exact-size codecs to the on-device HexBenchmark
(decode64, decode64OrNull, encode64, decode128, encode128, toLong256,
and the old isHex64+decode two-pass for comparison) so ART numbers can
be collected with the existing benchmark harness.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Hwv6XwT9mwGUQc57zH4ky4

2026-08-01 01:47:01 +00:00

..

androidTest

perf(quartz): hoist lookup tables in Hex.decode/encode/isEqual/readLong; bench new codecs

2026-08-01 01:47:01 +00:00

main

- Creates a Quartz Module for Nostr Events

2023-08-16 17:58:25 -04:00