Phil, > Dmitrii, did iproute2 without your change even print the overhead as set by you before? Looking at the code, I'd assume not.
I used an iproute2 provided by the distribution and an OpenVZ 3.10 kernel so there are differences there but I noticed the 'manual' overhead-related code is included there. I am going to get an upstream kernel and iproute2 to check tomorrow. At least they print mpu consistently. The following output is for non-upstream kernels and iproute2 provided by the distributions so it probably won't be 100% useful to answer your question. This is what I have on a quite an old ovz kernel at home: [root@localhost ~]# uname -r 3.10.0-229.7.2.vz7.8.8 [root@localhost ~]# tc qdisc add dev eth0 root handle 1: htb default 12 [root@localhost ~]# tc class add dev eth0 parent 1: classid 1:1 htb rate 100kbps ceil 100kbps mpu 256 overhead 64 [root@localhost ~]# tc -d class show dev eth0 class htb 1:1 root prio 0 quantum 10000 rate 800000bit overhead 64 ceil 800000bit burst 1600b/1 mpu 0b overhead 1b cburst 1600b/1 mpu 0b overhead 1b level 0 And this is the same on ubuntu 14.04 with 3.19 kernel (looks like the mpu value is not configured properly which is strange, though 'manual' overhead is there). administrator@ubuntu-q87:~$ uname -r 3.19.0-33-generic administrator@ubuntu-q87:~$ sudo tc qdisc add dev eth0 root handle 1: htb default 12 administrator@ubuntu-q87:~$ sudo tc class add dev eth0 parent 1: classid 1:1 htb rate 100kbps ceil 100kbps mpu 256 overhead 64 administrator@ubuntu-q87:~$ tc -d class show dev eth0 class htb 1:1 root prio 0 quantum 10000 rate 800000bit overhead 64 ceil 800000bit linklayer ethernet burst 1600b/1 mpu 0b overhead 0b cburst 1600b/1 mpu 0b overhead 0b level 0 Thanks, Dima -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
