if len(b.output) > 0 {
				b.trimOutput()
				fmt.Printf("--- BENCH: %s\n%s", benchName, b.output)
			}
			if p := runtime.GOMAXPROCS(-1); p != procs {
				fmt.Fprintf(os.Stderr, "testing: %s left GOMAXPROCS set to %d\n", benchName, p)
			}
		}
	}
}

// trimOutput shortens the output from a benchmark, which can be very long.
func (b *B) trimOutput() {

	func (b *B) run() BenchmarkResult

	// runN runs a single benchmark for the specified number of ...
	func (b *B) runN(n int)

	// trimOutput shortens the output from a benchmark, which can be ...
	func (b *B) trimOutput()

	// The results of a benchmark run. 
	type BenchmarkResult struct {
		N	int		// The number of iterations.
		T	time.Duration	// The total time taken.

	}
	if !b.missingBytes {
		r.Bytes += other.Bytes
	}
	r.MemAllocs += uint64(other.AllocsPerOp())
	r.MemBytes += uint64(other.AllocedBytesPerOp())
}

// trimOutput shortens the output from a benchmark, which can be very long.
func (b *B) trimOutput() {
	// The output is likely to appear multiple times because the benchmark
	// is run multiple times, but at least it will be seen. This is not a big deal