[GitHub] [kafka] Hangleton commented on pull request #13782: Suggest for performance fix: KAFKA-9693 Kafka latency spikes caused by log segment flush on roll - trunk version

["Hangleton (via GitHub)" <gi...@apache.org>]

Hangleton commented on PR #13782:
URL: https://github.com/apache/kafka/pull/13782#issuecomment-1568955091

   Many thanks for the patch and the collected data! Really interesting to see the impact of this change. A few questions: 
   
   - What storage device and file system are used in the test?
   - Would you have a real-life workload where the impact of this change can be quantified? The workload generated by the producer-perf-test.sh exhibits the problem the most because the segments of all replicas on the brokers start rolling at the same time. Which is why it is also interesting to assess the impact using topic-partitions which have different ingress rate and/or use segments of different sizes.


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