VNLRU_COUNT_SLOP
if (rnumvnodes > desiredvnodes + VNLRU_COUNT_SLOP + 10) {
if (onumvnodes + VNLRU_COUNT_SLOP + 1000 > desiredvnodes &&
if (rnumvnodes > desiredvnodes + VNLRU_COUNT_SLOP) {