From: Andi Kleen <[EMAIL PROTECTED]> Date: 09 Oct 2007 18:51:51 +0200
> Hopefully that new qdisc will just use the TX rings of the hardware > directly. They are typically large enough these days. That might avoid > some locking in this critical path. Indeed, I also realized last night that for the default qdiscs we do a lot of stupid useless work. If the queue is a FIFO and the device can take packets, we should send it directly and not stick it into the qdisc at all. > If the data is just passed on to the hardware queue, why is any > locking needed at all? (except for the driver locking of course) Absolutely. Our packet scheduler subsystem is great, but by default it should just get out of the way. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
