smiklosovic commented on code in PR #2373:
URL: https://github.com/apache/cassandra/pull/2373#discussion_r1207172854
##########
tools/stress/src/org/apache/cassandra/stress/StressAction.java:
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@@ -155,15 +159,22 @@ private boolean runMulti(boolean auto, UniformRateLimiter
rateLimiter)
results.add(result);
if (prevThreadCount > 0)
- System.out.println(String.format("Improvement over %d
threadCount: %.0f%%",
- prevThreadCount, 100 * averageImprovement(results,
1)));
+ {
+ double avgImprovement = 100 *
target.averageImprovement(results, 1);
Review Comment:
for latency, the "improvement" is hard to describe as the test is stressing
a cluster in such a way that even throughput is better, the latency will suffer
so it will be progressively worse. The default returned from
`averageImprovement` is `0` if not overloaded in the implementations.
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