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facebookresearch / DCPerf

DCPerf benchmark suite for hyperscale cloud applications
MIT License
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Fix QPS modulation in DriverNode when --qps target is higher than plaform performance. #16

Closed ss7pro closed 2 years ago

ss7pro commented 2 years ago

That change fixes QPS modulation. Without that fix driver would reduce request delay to 0 over time when --qps target provided is higher than the platform can deliver.

../oldisim/src/DriverNode.cc(361): DriverNodeThread started... now

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 106.213454, delay: 6056

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 114.963954, delay: 5257

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 108.263097, delay: 4297

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 112.255715, delay: 3642

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 114.156282, delay: 3139

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 101.193764, delay: 2398

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 105.137493, delay: 1903

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 99.222223, delay: 1425

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 98.211332, delay: 1056

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 99.306638, delay: 791

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 91.113630, delay: 544

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 97.032876, delay: 398

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 61.123376, delay: 183

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 96.235939, delay: 132

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 84.171335, delay: 83

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 88.164842, delay: 55

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 91.088451, delay: 37

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 89.105470, delay: 24

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 89.183737, delay: 16

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 95.119357, delay: 11

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 92.168492, delay: 7

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 89.146512, delay: 4

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 63.119148, delay: 1

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 59.158181, delay: 0

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 84.201019, delay: 0

../workloads/ranking/DriverNodeRank.cc(76): A: QPS_target: 132.419998, QPS: 83.204083, delay: 0

facebook-github-bot commented 2 years ago

@excelle08 has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.