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Posted to jira@kafka.apache.org by "Divij Vaidya (Jira)" <ji...@apache.org> on 2022/11/28 11:18:00 UTC

[jira] [Created] (KAFKA-14423) Optimize CPU bottleneck caused by metrics capture

Divij Vaidya created KAFKA-14423:
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             Summary: Optimize CPU bottleneck caused by metrics capture
                 Key: KAFKA-14423
                 URL: https://issues.apache.org/jira/browse/KAFKA-14423
             Project: Kafka
          Issue Type: Improvement
          Components: network
            Reporter: Divij Vaidya
         Attachments: Screenshot 2022-11-28 at 12.11.23.png

I ran a produce-only workload on a plaintext single broker. One of the main findings was that kafka.network.Processor.updateRequestMetrics(kafka.network.RequestChannel$Response method is expensive to the extent that 90% of the time taken by Processor.processCompletedSends() is taken by this method.

The flamegraph is attached.

The objective of this ticket is to optimize the performance of metrics collection here.



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