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https://issues.apache.org/jira/browse/KAFKA-2528?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14739488#comment-14739488
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Dong Lin commented on KAFKA-2528:
---------------------------------
I think this difference may be explained by the fact that ClientQuotaManger and
BrokerTopicMetrics are using two difference classes, thus difference
configuration and algorithm, to measure bytes-in-rate. It will be definitely a
bug if the value of metric used by ClientQuotaManager ever exceeds the quota
limit. However, here the throughput I used in the report is extracted using
bytesInRate in BrokerTopicMetrics.
Also note that the 1MB is a small absolute difference. As the quota and
throughput increases, the relative difference gets smaller, as we may observe
in other experiments.
> Quota Performance Evaluation
> ----------------------------
>
> Key: KAFKA-2528
> URL: https://issues.apache.org/jira/browse/KAFKA-2528
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Dong Lin
> Assignee: Dong Lin
> Attachments: QuotaPerformanceEvaluation.pdf
>
>
> In this document we present the results of experiments we did at LinkedIn, to
> validate the basic functionality of quota, as well as the performances
> benefits of using quota in a heterogeneous multi-tenant environment.
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