PerformanceTests/runner.js should limit output precision in relation to the stddev
avg 95.18194456386033 runs/s
median 95.1814733027575 runs/s
stdev 0.22485624887911804 runs/s
min 94.7867298578199 runs/s
max 95.4653937947494 runs/s
It seems silly to output to 15 digits when the stddev says at best 4 of those are useful.
Maybe keying off the stddev is incorrect and we should just output only 4 digits anyway?