sqd commented on PR #17618:
URL: https://github.com/apache/iceberg/pull/17618#issuecomment-5269667170
Benchmarks:
JMH, average time, JDK 21, 2 forks x 5 x 1 s, -prof gc, on an Apple M1 Max,
against a 60-column schema:
identifier fields before after
0 34.6 ns / 352 B 3.5 ns / 0 B
2 70.0 ns / 496 B 4.2 ns / 0 B
For scale, an async-profiler CPU profile of a saturated TaskManager (AMD
EPYC 9654P) running the dynamic sink in forward mode attributed 9.5% of the
samples on the sink's task threads to this one check.
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