Maxim Gekk created SPARK-31443:
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Summary: Perf regression of toJavaDate
Key: SPARK-31443
URL: https://issues.apache.org/jira/browse/SPARK-31443
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 3.0.0
Reporter: Maxim Gekk
DateTimeBenchmark shows the regression
Spark 2.4.6-SNAPSHOT at the PR https://github.com/MaxGekk/spark/pull/27
{code}
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Conversion from/to external types
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OpenJDK 64-Bit Server VM 1.8.0_242-8u242-b08-0ubuntu3~18.04-b08 on Linux
4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
To/from java.sql.Timestamp: Best Time(ms) Avg Time(ms)
Stdev(ms) Rate(M/s) Per Row(ns) Relative
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>From java.sql.Date 614 655
> 43 8.1 122.8 1.0X
{code}
Current master:
{code}
================================================================================================
Conversion from/to external types
================================================================================================
OpenJDK 64-Bit Server VM 1.8.0_242-8u242-b08-0ubuntu3~18.04-b08 on Linux
4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
To/from java.sql.Timestamp: Best Time(ms) Avg Time(ms)
Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
>From java.sql.Date 1154 1206
> 46 4.3 230.9 1.0X
{code}
The regression is ~x2.
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