[
https://issues.apache.org/jira/browse/BEAM-12127?focusedWorklogId=586606&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-586606
]
ASF GitHub Bot logged work on BEAM-12127:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 21/Apr/21 14:16
Start Date: 21/Apr/21 14:16
Worklog Time Spent: 10m
Work Description: scwhittle opened a new pull request #14601:
URL: https://github.com/apache/beam/pull/14601
…e monitoring container, avoid randomInt for sampling if resevoir is empty
MonitoringContainer lookup shows up as .4% of CPU on benchmark and is easily
memoized.
**Please** add a meaningful description for your change here
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`ValidatesRunner` compliance status (on master branch)
--------------------------------------------------------
<table>
<thead>
<tr>
<th>Lang</th>
<th>ULR</th>
<th>Dataflow</th>
<th>Flink</th>
<th>Samza</th>
<th>Spark</th>
<th>Twister2</th>
</tr>
</thead>
<tbody>
<tr>
<td>Go</td>
<td>---</td>
<td>
<a
href="https://ci-beam.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/";>
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<td>---</td>
<td>
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</td>
<td>---</td>
</tr>
<tr>
<td>Java</td>
<td>
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href="https://ci-beam.apache.org/job/beam_PostCommit_Java_ValidatesRunner_ULR/lastCompletedBuild/";>
<img alt="Build Status"
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</td>
</tr>
<tr>
<td>Python</td>
<td>---</td>
<td>
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<td>
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</td>
<td>---</td>
<td>
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<img alt="Build Status"
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</td>
<td>---</td>
</tr>
<tr>
<td>XLang</td>
<td>
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</td>
<td>---</td>
<td>
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</a>
</td>
<td>---</td>
</tr>
</tbody>
</table>
Examples testing status on various runners
--------------------------------------------------------
<table>
<thead>
<tr>
<th>Lang</th>
<th>ULR</th>
<th>Dataflow</th>
<th>Flink</th>
<th>Samza</th>
<th>Spark</th>
<th>Twister2</th>
</tr>
</thead>
<tbody>
<tr>
<td>Go</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
</tr>
<tr>
<td>Java</td>
<td>---</td>
<td>
<a
href="https://ci-beam.apache.org/job/beam_PreCommit_Java_Examples_Dataflow_Cron/lastCompletedBuild/";>
<img alt="Build Status"
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</a><br>
</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
</tr>
<tr>
<td>Python</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
</tr>
<tr>
<td>XLang</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
</tr>
</tbody>
</table>
Post-Commit SDK/Transform Integration Tests Status (on master branch)
------------------------------------------------------------------------------------------------
<table>
<thead>
<tr>
<th>Go</th>
<th>Java</th>
<th>Python</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a
href="https://ci-beam.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/";>
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</a>
</td>
</tr>
</tbody>
</table>
Pre-Commit Tests Status (on master branch)
------------------------------------------------------------------------------------------------
<table>
<thead>
<tr>
<th>---</th>
<th>Java</th>
<th>Python</th>
<th>Go</th>
<th>Website</th>
<th>Whitespace</th>
<th>Typescript</th>
</tr>
</thead>
<tbody>
<tr>
<td>Non-portable</td>
<td>
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</tr>
<tr>
<td>Portable</td>
<td>---</td>
<td>
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</td>
<td>---</td>
<td>---</td>
<td>---</td>
</tr>
</tbody>
</table>
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Issue Time Tracking
-------------------
Worklog Id: (was: 586606)
Time Spent: 1h 50m (was: 1h 40m)
> Reduce counter overhead in PCollectionConsumerRegistry.accept
> -------------------------------------------------------------
>
> Key: BEAM-12127
> URL: https://issues.apache.org/jira/browse/BEAM-12127
> Project: Beam
> Issue Type: Bug
> Components: java-fn-execution
> Reporter: Sam Whittle
> Assignee: Sam Whittle
> Priority: P2
> Time Spent: 1h 50m
> Remaining Estimate: 0h
>
> DelegatingCounter.inc shows up as 21% of cpu on nexmark query 2 benchmark
> under PCollectionConsumerRegistry.accept
> 2% is actual counter incrementing, but the majority is the delegation of
> DelegatingCounter which involves looking up thread-local state and then
> getting the counter for the name from the counter container. However in this
> case the counter container is known and can just be bound when constructing
> the counter instaed of using DelegatingCounter.
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