bsd/vfs/vfs_bio.c

4522 struct bufqlim {
4528 } bufqlim[BQUEUES];
4535  * 3.  bufqlim[BQ_META].bl_nlow != 0
4536  * 4.  bufqlim[BQ_META].bl_nlow > (number of possible concurrent
4600 	bufqlim[q].bl_num++;
4610 	bufqlim[q].bl_num--;
4631 		 * Initialize the bufqlim
4635 		bufqlim[BQ_LOCKED].bl_nlow = 0;
4636 		bufqlim[BQ_LOCKED].bl_nlhigh = 32;
4637 		bufqlim[BQ_LOCKED].bl_target = 0;
4638 		bufqlim[BQ_LOCKED].bl_stale = 30;
4641 		bufqlim[BQ_LRU].bl_nlow = 0;
4642 		bufqlim[BQ_LRU].bl_nlhigh = nbufhigh/4;
4643 		bufqlim[BQ_LRU].bl_target = nbuftarget/4;
4644 		bufqlim[BQ_LRU].bl_stale = LRU_IS_STALE;
4647 		bufqlim[BQ_AGE].bl_nlow = 0;
4648 		bufqlim[BQ_AGE].bl_nlhigh = nbufhigh/4;
4649 		bufqlim[BQ_AGE].bl_target = nbuftarget/4;
4650 		bufqlim[BQ_AGE].bl_stale = AGE_IS_STALE;
4653 		bufqlim[BQ_EMPTY].bl_nlow = 0;
4654 		bufqlim[BQ_EMPTY].bl_nlhigh = nbufhigh/4;
4655 		bufqlim[BQ_EMPTY].bl_target = nbuftarget/4;
4656 		bufqlim[BQ_EMPTY].bl_stale = 600000;
4659 		bufqlim[BQ_META].bl_nlow = 0;
4660 		bufqlim[BQ_META].bl_nlhigh = nbufhigh/4;
4661 		bufqlim[BQ_META].bl_target = nbuftarget/4;
4662 		bufqlim[BQ_META].bl_stale = META_IS_STALE;
4665 		bufqlim[BQ_LOCKED].bl_nlow = 0;
4666 		bufqlim[BQ_LOCKED].bl_nlhigh = 32;
4667 		bufqlim[BQ_LOCKED].bl_target = 0;
4668 		bufqlim[BQ_LOCKED].bl_stale = 30;
4738 	n = (bufqlim[q].bl_num - bufqlim[q].bl_target);
4763 		if ((t - bp->b_timestamp) > bufqlim[q].bl_stale) {
4801 			printf("min = %ld, ", (long)bufqlim[i].bl_nlow);
4802 			printf("cur = %ld, ", (long)bufqlim[i].bl_num);
4803 			printf("max = %ld, ", (long)bufqlim[i].bl_nlhigh);
4804 			printf("target = %ld, ", (long)bufqlim[i].bl_target);
4805 			printf("stale after %ld seconds\n", bufqlim[i].bl_stale);
4810 			printf("cur = %ld, ", (long)bufqlim[i].bl_num);