cmd/bench: export runstamp configuration key

The runstamp is a nanosecond-precision UTC timestamp that indicates when
a benchmark run started. It exists to help prevent comparing results
from different runs, which are generally applicable to compare (machine
conditions, among other things, can change over time).

Change-Id: I5385ba5548033747cbbe9b5f59a5c19b26c3bad3
Reviewed-by: Michael Pratt <>
Run-TryBot: Michael Knyszek <>
Trust: Michael Knyszek <>
TryBot-Result: Gopher Robot <>
1 file changed