mysql v4 backend slowing down while using random and flq allocator
It looks like Kea performance is hugely impacted when random or flq allocator is used. Screen of the charts that show performance degradation are attached. Results are generated using code from #2843 (closed)
Issue is not observed in v6 random allocator:
full internal report (it's heavy, please wait patiently for it to load)
to check all allocator related tests please go to tab Resource Consumption
, allocators tests starts at Scenario 7.
Mysql related scenarios:
- v4: 10, 11, 12, 19, 20, 21, 28, 29, 30
- v6: 39, 40, 45, 46, 51, 52
(number of tests will be reduced for regular monthly runs)
Additionally I should mention that in previous runs (master) I observed issues with iterative allocator in v4 mysql as well. Looked like kea stops assigning leases after assigning ~6mln leases, but I couldn't reproduce it on #2843 (closed) (I will repeat those tests on master overnight)