tunable_mbinit() in kern_mbuf.c looks like this: 119 /* 120 * The default limit for all mbuf related memory is 1/2 of all 121 * available kernel memory (physical or kmem). 122 * At most it can be 3/4 of available kernel memory. 123 */ 124 realmem = qmin((quad_t)physmem * PAGE_SIZE, 125 vm_map_max(kmem_map) - vm_map_min(kmem_map)); 126 maxmbufmem = realmem / 2; 127 TUNABLE_QUAD_FETCH("kern.ipc.maxmbufmem", &maxmbufmem); 128 if (maxmbufmem > realmem / 4 * 3) 129 maxmbufmem = realmem / 4 * 3;
If I am reading the code correctly, we loose the value on line 126 when we do FETCH on line 127. And after line 127, if we havent specified kern.ipc.maxmbufmem (in loader.conf - I guess...), we set that value to 0. And because of that the if condition on line 128 is almost always false? What am I missing here? Thanks, Hiren _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"