On Thu, 2013-06-20 at 13:14 +0800, Jason Wang wrote: > A drawback of NETIF_F_LLTX is that we may contend on qdisc lock > especially when we have a huge number of tx queues.
For your information loopback driver is LLTX, and there is no qdisc on it, unless you specifically add one. Once you add a qdisc on a device, you hit the typical contention on a spinlock. But its hard to design a parallel qdisc. So far nobody did that. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
