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https://issues.apache.org/jira/browse/KAFKA-6254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16352719#comment-16352719
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Jun Rao commented on KAFKA-6254:
--------------------------------
Some perf results from [~afalko].
Without patch @46k partitions: consume latency- 4 ms; commit latency- 46 ms
With patch [@68K|https://github.com/68k]: consume - 2 ms; commit - 33 ms
With patch @46k: consume - 2 ms; commit - 21 ms
The improvement of commit is due to improvement in replicating the offset topic.
> Introduce Incremental FetchRequests to Increase Partition Scalability
> ---------------------------------------------------------------------
>
> Key: KAFKA-6254
> URL: https://issues.apache.org/jira/browse/KAFKA-6254
> Project: Kafka
> Issue Type: Improvement
> Reporter: Colin P. McCabe
> Assignee: Colin P. McCabe
> Priority: Major
> Fix For: 1.1.0
>
>
> Introduce Incremental FetchRequests to Increase Partition Scalability. See
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-227%3A+Introduce+Incremental+FetchRequests+to+Increase+Partition+Scalability
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