if testing.Short() {
		t.Skip("stress test that takes time to run")
	}
	if runtime.NumCPU() < 4 {
		t.Skip("want at least 4 CPUs for this test")
	}
	got := runTestProg(t, "testprog", "GCMemoryLimit")
	want := "OK\n"
	if got != want {
		t.Fatalf("expected %q, but got %q", want, got)
	}
}

func TestMemoryLimitNoGCPercent(t *testing.T) {
	if testing.Short() {