[jira] [Created] (CASSANDRA-8686) Introduce Latency Target for Stress

["jonathan lacefield (JIRA)" <ji...@apache.org>]

jonathan lacefield created CASSANDRA-8686:
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             Summary: Introduce Latency Target for Stress
                 Key: CASSANDRA-8686
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8686
             Project: Cassandra
          Issue Type: Improvement
            Reporter: jonathan lacefield
            Priority: Minor


This item is a request to add a latency target to the rate option for the new stress tool.  The goal of the latency target would be to provide a guideline for SLAs to the stress tool so the stress tool can determine threads and throughputs that can be sustained while meeting the SLA targets.

For example:

cassandra-stress [options/commands] -rate latency p90=5 p95=10 p99=100

The outcome of this command would be a stress execution that would gradually increase threads, and hence throughput (trans/sec), until the latency profile can no longer be satisfied with the current workload (yaml file definition) and/or cluster.  This would provide a ceiling for throughput and connections for the given cluster, workload, and SLA profile.



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