[HBASE-13124] Option to collect latencies for individual requests

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.98.6
• Component/s: Performance, test
• Assignee: Unassigned
• Reporter: Hari Krishna Dara
• Created: 27/Feb/15 07:25
• Updated: 23/Jun/22 20:25
• Resolved: 15/Jun/22 00:51

Description

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

Issue Links

• is related to: HBASE-12911 Client-side metrics