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https://issues.apache.org/jira/browse/ARROW-9344?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Li resolved ARROW-9344.
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Fix Version/s: 2.0.0
Resolution: Fixed
Issue resolved by pull request 7863
[https://github.com/apache/arrow/pull/7863]
> [C++][Flight] measure latency quantile in flight benchmark
> ----------------------------------------------------------
>
> Key: ARROW-9344
> URL: https://issues.apache.org/jira/browse/ARROW-9344
> Project: Apache Arrow
> Issue Type: Improvement
> Components: C++, FlightRPC
> Reporter: Yibo Cai
> Assignee: Yibo Cai
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.0.0
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> ARROW-9206 measures average latency in flight benchmark.
> In practice, latency quantile is necessary to show the whole picture of rpc
> performance. E.g., 99% quantile, max, median.
> A naive approach to save latencies of all batches is not applicable. Boost
> accumulator_set implements p square quantile algorithm which uses O(1) space
> with trivial computation overhead for each batch. It can be used in
> calculating latency quantiles.
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