Yibo Cai created ARROW-9344:

             Summary: [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

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.

This message was sent by Atlassian Jira

Reply via email to