Tag: #DatabaseQA

Thanks to Mark Callaghan for filing MDEV‑37992. This regression only appears under specific LRU and buffer‑pool conditions, and requires a memory‑resident workload to expose.

Using TAF, I reproduced the issue across 11.8, 12.3, and 13.1 using both parent commits and patched commits from MDEV‑33966. The fix restores expected throughput in all branches.

The workload used was POINTS‑COVERED‑PK with 10M rows × 8 tables, 40 threads, warmup enabled, and a 90G buffer pool. TAF’s warmup iteration, rest detection, and stable‑state perf […]