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Description
In the following output, reported rate is close to 4k rows/s but the actual rate is half that.
scylla-bench executes requests concurrently according to the configured concurrency and emits a partial result from each concurrent fiber if more than a second has elapsed. Those partial results are then summed up together and assumed to have been produced over a period of a second. When latency is high, the period is actually larger than a second, and actual rate lower.
time operations/s rows/s errors max 99.9th 99th 95th 90th median mean
2.416392808s 4027 4027 0 1.023410175s 1.013972991s 1.007681535s 999.817215ms 996.147199ms 966.262783ms 747.089756ms
4.448323544s 3485 3485 0 1.035468799s 1.031274495s 1.020788735s 1.014497279s 1.010827263s 993.525759ms 993.77632ms
6.339966315s 3630 3630 0 1.040711679s 1.029177343s 1.019740159s 1.010302975s 1.002438655s 974.651391ms 964.700896ms
8.189235084s 3734 3734 0 1.029177343s 1.024458751s 1.013972991s 1.004535807s 998.768639ms 923.271167ms 929.854113ms