SPARSENESS
(xid % (SPARSENESS*((struct udp_cache *) su_data(transp)->su_cache)->uc_size))
uc->uc_entries = ALLOC(cache_ptr, size * SPARSENESS);
BZERO(uc->uc_entries, cache_ptr, size * SPARSENESS);
(xid % (SPARSENESS * ((struct cl_cache *) \
uc->uc_entries = ALLOC(cache_ptr, size * SPARSENESS);
MEMZERO(uc->uc_entries, cache_ptr, size * SPARSENESS);
FREE(uc->uc_entries, cache_ptr, size * SPARSENESS);