[golang-dev] Re: code review 6498060: cgo/misc/test: burn CPU to improve sleep accuracy (issue 6498060)

*** Submitted as
http://code.google.com/p/go/source/detail?r=18a0bd67b4b4 ***

cgo/misc/test: burn CPU to improve sleep accuracy

Fixes issue 4008.

Run a background goroutine that wastes CPU to trick the
power management into raising the CPU frequency which,
by side effect, makes sleep more accurate on arm.

=== RUN TestParallelSleep
--- PASS: TestParallelSleep (1.30 seconds)
_cgo_gotypes.go:772: sleep(1) slept for 1.000458s

R=minux.ma, r
CC=golang-dev
http://codereview.appspot.com/6498060


http://codereview.appspot.com/6498060/