[
https://issues.apache.org/jira/browse/AVRO-3527?focusedWorklogId=779328&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-779328
]
ASF GitHub Bot logged work on AVRO-3527:
----------------------------------------
Author: ASF GitHub Bot
Created on: 08/Jun/22 05:47
Start Date: 08/Jun/22 05:47
Worklog Time Spent: 10m
Work Description: steven-aerts commented on code in PR #1708:
URL: https://github.com/apache/avro/pull/1708#discussion_r891942775
##########
lang/java/compiler/src/main/java/org/apache/avro/compiler/specific/SpecificCompiler.java:
##########
@@ -1131,6 +1131,46 @@
return word;
}
+ public boolean canGenerateEqualsAndHashCode(Schema schema) {
+ return getUsedCustomLogicalTypeFactories(schema).isEmpty();
+ }
+
+ public boolean isPrimitiveType(Schema schema) {
+ return !isUnboxedJavaTypeNullable(schema) &&
getConvertedLogicalType(schema) == null;
+ }
+
+ public String hashCodeFor(Schema schema, String name) {
+ switch (javaUnbox(schema)) {
Review Comment:
Done
Issue Time Tracking
-------------------
Worklog Id: (was: 779328)
Time Spent: 1h 10m (was: 1h)
> Generated equals() and hashCode() for SpecificRecords
> -----------------------------------------------------
>
> Key: AVRO-3527
> URL: https://issues.apache.org/jira/browse/AVRO-3527
> Project: Apache Avro
> Issue Type: Improvement
> Components: java
> Reporter: Steven Aerts
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.12.0
>
> Attachments: equals_hashcode_after.txt, equals_hashcode_before.txt,
> flame_graph.jpeg
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> When profiling our production system, we found that it was spending almost
> 40% of its overall time in the {{SpecificRecordBase.hashCode()}} and
> {{SpecificRecordBase.equals()}} implementations.
> In some sections of its logic we see that almost all time is spend in those
> function, as can be seen in attached flame graph (blue "pyramids")
> !flame_graph.jpeg|width=385,height=99!
> By generating the {{.equals()}} and {{.hashCode()}} all this overhead
> disappeared and this application became 35% faster overall.
> Also on other AVRO heavy applications we saw noticeable performance gains
> where we hadn't expect them due to this improvement.
> A generated implementation of {{.hashCode()}} becomes 5 to 10 times faster
> than its generic counterpart. For {{.equals()}} it is 10 to 20 times faster.
> Which is also visible in the attached JMH benchmarks.
--
This message was sent by Atlassian Jira
(v8.20.7#820007)
