--- On Thu, 5/9/13, Eugene Grosbein <egrosb...@rdtc.ru> wrote:
> From: Eugene Grosbein <egrosb...@rdtc.ru> > Subject: Re: High CPU interrupt load on intel I350T4 with igb on 8.3 > To: "Barney Cordoba" <barney_cord...@yahoo.com> > Cc: ""Clément Hermann (nodens)"" <nodens2...@gmail.com>, > freebsd-net@freebsd.org > Date: Thursday, May 9, 2013, 12:30 PM > On 09.05.2013 23:25, Barney Cordoba > wrote: > > >> Network device driver is not guilty here, that's > just pf's > >> contention > >> running in igb's context. > >> > >> Eugene Grosbein > > > > They're both at play. Single threadedness aggravates > subsystems that > > have too many lock points. > > > > It can also be "solved" with using 1 queue, because > then you don't > > have 4 queues going into a single thread. > > Again, the problem is within pf(4)'s global lock, not in the > igb(4). > Again, you're wrong. It's not the bottleneck's fault; it's the fault of the multi-threaded code for only working properly when there are no bottlenecks. BC _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
