[SDTEST-2703] Set default parallelism to number of available CPUs#30
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When a user only sets --max-parallelism to a lower value (e.g., 1), they should get that value, not the default min (which is now NumCPU). Previously, if max < min, the code returned min, effectively ignoring the user's cap. Now we clamp min to max instead, ensuring the user's explicit max setting takes precedence.
gnufede
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Jan 30, 2026
anmarchenko
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Summary
--min-parallelismand--max-parallelismfrom1to the number of available CPUs (runtime.NumCPU())Motivation
Having parallelism set to 1 by default is not terribly useful for a parallel test runners: the number of available CPUs is more sensible default as we assume that we'll run tests in parallel on the current machine.
Test plan
make test)make lint)