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iptvnator/tools
4grayandClaude Opus 5.5 ae836bd97e docs(coverage): record why two-core Tier A runs stay serial
Answers two review notes on the concurrent Tier A runner with measurements
instead of code changes:

- Two cores stay serial. Two in flight would give each project one Jest
  worker, which runs Jest in-band; on a 2-core / 7 GB container ui-playback
  and web ran out of their 2 GiB default heap. With a 4 GiB heap it passed
  about 15% faster on a warm cache for 1.2 GiB more peak memory. CI runs on
  4 cores. A test pins that the defaults never drop to one worker.
- Per-project output buffering is bounded in practice: a big project with
  every test failing printed 1.8 MB while its Jest process peaked at 850 MB.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-29 09:00:14 +02:00
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