E2E Testing Tool: scalability metrics

[kimerinn]

#14915

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Minimum Memory required to read XXMb size row
Distributions of throughput metrics listed above measured over different numbers of streams (example: measure MB/second read by MySQL Source Connector with 1 vCPU/500MB Memory when connector has 1 stream, 2 streams…1K streams, measure the same with 2 vCPUs/500MB Memory, measure the same with 1 vCPU/1GB Memory). The goal is to understand if, when and to what extent adding resources to connector containers improves throughput
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