for (int i = 0; i < 10; i++) {
final List<AllocRecord> allocsByThisThread = Lists.newLinkedList();
allocations.add(allocsByThisThread);
TestThread t = new MultithreadedTestUtil.RepeatingTestThread(ctx) {
private Random r = new Random();
@Override
public void doAnAction() throws Exception {
int size = r.nextInt(1000);
Allocation alloc = mslab.allocateBytes(size);