Open Bug 1241072 Opened 4 years ago

fix xpcshell harness to run single threaded for each test, even if we are running many tests in parallel


(Testing :: XPCShell Harness, defect)

Not set


(Not tracked)


(Reporter: jmaher, Unassigned)


in working on taskcluster we found that when enabling >1 core for ec2 instances our xpcshell tests became much more intermittent:

This is because we use:
from multiprocessing import cpu_count

We should use a different method for determining the accurate amount of cores available.  More info on the slight misreporting here:
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