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Posted to issues@flink.apache.org by "Zakelly Lan (Jira)" <ji...@apache.org> on 2024/01/18 10:59:00 UTC

[jira] [Created] (FLINK-34148) Potential regression (Jan. 13): stringWrite with Java8

Zakelly Lan created FLINK-34148:
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             Summary: Potential regression (Jan. 13): stringWrite with Java8
                 Key: FLINK-34148
                 URL: https://issues.apache.org/jira/browse/FLINK-34148
             Project: Flink
          Issue Type: Improvement
          Components: API / Type Serialization System
            Reporter: Zakelly Lan


Significant drop of performance in stringWrite with Java8 from commit [881062f352|https://github.com/apache/flink/commit/881062f352f8bf8c21ab7cbea95e111fd82fdf20] to [5d9d8748b6|https://github.com/apache/flink/commit/5d9d8748b64ff1a75964a5cd2857ab5061312b51] . It only involves strings not so long (128 or 4).

stringWrite.128.ascii(Java8) baseline=1089.107756 current_value=754.52452
stringWrite.128.chinese(Java8) baseline=504.244575 current_value=295.358989
stringWrite.128.russian(Java8) baseline=655.582639 current_value=421.030188
stringWrite.4.chinese(Java8) baseline=9598.791964 current_value=6627.929927
stringWrite.4.russian(Java8) baseline=11070.666415 current_value=8289.95767



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