NEVENT
kqueueop->changes = calloc(NEVENT, sizeof(struct kevent));
kqueueop->events = calloc(NEVENT, sizeof(struct kevent));
kqueueop->nevents = NEVENT;
struct event *ev[NEVENT];
if (called < 10*NEVENT) {
j = rand_int(NEVENT);
for (i = 0; i < NEVENT; i++) {
return (called < NEVENT);