From: Greg Banks <[EMAIL PROTECTED]> Date: Thu, 02 Feb 2006 14:19:43 +1100
> Multiple trips down through TCP, qdisc, and the driver for each > NFS packet sent: one for the header and one for each page. Lots > of locks need to be taken and dropped, all this while multiple nfds > on multiple CPUs are all trying to reply to NFS RPCs at the same > time. And in the particular case of the SN2 architecture, time > spent flushing PCI writes in the driver (less of an issue now that > host send rings are the default in tg3). I see. Maybe we can be smarter about how the write(), CORK, sendfile, UNCORK sequence is done. Thanks for mentioning this. - 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
