Cherrypick 0a9e69 aa2998 63e558 b487e8 e28be4 50237f 64aa934, archive fixes, do not save 0 cpus to cache file, reduce frequency of notification of load checking, generate example fix, reduce from 10 to 5 number of times to try getting test info, use sha sum for log file name when it gets too long, reduce default inter-test-delay from 2 seconds to 0.1