Re: cpu utilisation improvement when not doing netif_tx_{stop,wake}_queue()
From: Lennert Buytenhek <hidden>
Date: 2008-08-29 14:46:54
On Fri, Aug 29, 2008 at 05:15:20PM +1000, Herbert Xu wrote:
quoted
I.e. transmitting wire speed gigabit over a single TCP session takes around 90% CPU time (measured with cyclesoak) if I have the TX queue flow control enabled, but only 70% if I rip the TX queue flow control out. (This is on a relatively underpowered ARM box.)How many cores and how many queues?
One core (at 1.0GHz), and one queue in use at the moment.