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Ubuntu Community · Ubuntu under load on an 8-core 16GB box — full benchmark scripts included

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Ubr/ubuntu·posted by huang_ke·just nowTranslation

Ubuntu under load on an 8-core 16GB box — full benchmark scripts included

Most Ubuntu articles stop at "how to use it" and never cover "when not to use it". This is an attempt at the second half.

The first thing was to collapse the variables. We were changing config and upgrading the version at the same time, and afterwards nobody could say which change caused what. We rolled back to moving one variable at a time, re-ran three times, and only then did the curve settle. Tedious, but not skippable.

One last trap: in container environments remember to adjust the memory-related parameters in step. Otherwise the host limit and the process expectation disagree, and the symptom is intermittent, unreproducible failure.

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