"runtime/metrics"
	"sync"
	"sync/atomic"
	"time"
	"unsafe"
)

func init() {
	register("GCFairness", GCFairness)
	register("GCFairness2", GCFairness2)
	register("GCSys", GCSys)
	register("GCPhys", GCPhys)
	register("DeferLiveness", DeferLiveness)
	register("GCZombie", GCZombie)
	register("GCMemoryLimit", GCMemoryLimit)
	register("GCMemoryLimitNoGCPercent", GCMemoryLimitNoGCPercent)
}

func GCSys() {

	leaked := PageCachePagesLeaked()
	if leaked != 0 {
		t.Fatalf("found %d leaked pages in page caches", leaked)
	}
}

func TestPhysicalMemoryUtilization(t *testing.T) {
	got := runTestProg(t, "testprog", "GCPhys")
	want := "OK\n"
	if got != want {
		t.Fatalf("expected %q, but got %q", want, got)
	}
}

func TestScavengedBitsCleared(t *testing.T) {
	var mismatches [128]BitsMismatch