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[ISSUE #11294] Optimize ConcurrentHashMap#computeIfAbsent have performance problem in jdk1.8 #11326

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merged 4 commits into from
Jan 19, 2023

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@mxsm mxsm commented Jan 18, 2023

What is the purpose of the change

Fix #11294

Brief changelog

  • Optimize ConcurrentHashMap#computeIfAbsent have performance problem in jdk1.8

Verifying this change

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@mxsm mxsm requested a review from AlbumenJ January 19, 2023 02:59
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mxsm commented Jan 19, 2023

@AlbumenJ PTAL~

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LGTM

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Please fix style check.
image

@mxsm mxsm requested a review from AlbumenJ January 19, 2023 13:30
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mxsm commented Jan 19, 2023

@AlbumenJ I has fixed it and re-submit again, PTAL~ Thks

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sonarcloud bot commented Jan 19, 2023

Kudos, SonarCloud Quality Gate passed!    Quality Gate passed

Bug A 0 Bugs
Vulnerability A 0 Vulnerabilities
Security Hotspot A 0 Security Hotspots
Code Smell A 44 Code Smells

78.1% 78.1% Coverage
0.0% 0.0% Duplication

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Codecov Report

Merging #11326 (4b6f548) into 3.2 (0c1b798) will decrease coverage by 4.69%.
The diff coverage is 84.00%.

@@             Coverage Diff              @@
##                3.2   #11326      +/-   ##
============================================
- Coverage     69.51%   64.83%   -4.69%     
+ Complexity      339       14     -325     
============================================
  Files          1514     1487      -27     
  Lines         81218    62360   -18858     
  Branches      14612     9133    -5479     
============================================
- Hits          56456    40429   -16027     
+ Misses        19950    17712    -2238     
+ Partials       4812     4219     -593     
Impacted Files Coverage Δ
...ache/dubbo/rpc/cluster/CacheableRouterFactory.java 0.00% <0.00%> (ø)
...o/rpc/cluster/router/script/ScriptStateRouter.java 0.00% <0.00%> (-73.34%) ⬇️
...enter/support/nacos/NacosDynamicConfiguration.java 33.80% <0.00%> (+0.14%) ⬆️
...gistry/client/ReflectionBasedServiceDiscovery.java 0.00% <0.00%> (ø)
...bo/registry/multiple/MultipleServiceDiscovery.java 0.00% <0.00%> (ø)
...o/registry/xds/util/protocol/AbstractProtocol.java 0.00% <0.00%> (ø)
...che/dubbo/common/utils/ConcurrentHashMapUtils.java 33.33% <33.33%> (ø)
...stry/client/ServiceDiscoveryRegistryDirectory.java 43.94% <50.00%> (-11.04%) ⬇️
...a/org/apache/dubbo/rpc/filter/AccessLogFilter.java 41.46% <66.66%> (-2.02%) ⬇️
...pache/dubbo/rpc/model/ModuleServiceRepository.java 66.66% <75.00%> (ø)
... and 515 more

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Thanks for your contribution.

@AlbumenJ AlbumenJ merged commit d2eb0ef into apache:3.2 Jan 19, 2023
@mxsm mxsm deleted the dubbo-11294 branch January 20, 2023 01:48
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ConcurrentHashMap#computeIfAbsent have performance problem in jdk1.8
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