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Posted to dev@hbase.apache.org by "Hari Krishna Dara (JIRA)" <ji...@apache.org> on 2015/02/27 08:26:09 UTC

[jira] [Created] (HBASE-13124) Option to collect latencies for individual requests

Hari Krishna Dara created HBASE-13124:
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             Summary: Option to collect latencies for individual requests
                 Key: HBASE-13124
                 URL: https://issues.apache.org/jira/browse/HBASE-13124
             Project: HBase
          Issue Type: Improvement
          Components: Performance, test
    Affects Versions: 0.98.6
            Reporter: Hari Krishna Dara


Currently, the only option in {{PerformanceEvaluation}} is to print latency percentile summary at the end, and it is also not suitable if we are testing for a long duration (as all the timings are collected in memory). There should be an option to dump the latencies with a timestamp as CSV to a file so that this allows a detailed analysis on the generated data, such as:
- Percentile calculation at the desired precision on the latencies 
- Latencies over time
- Histograms



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