Marek Kierdelewicz: > Hi, > > >> Have 2 Ethernet adapters e1000. Have 8 CPU (4 real). >> Computer work as Shaper. Use only TC rules to shape and IPTABLES to >> drop. >> question: >> 1. I may balance load to other cpu? I understand that i can't balance >> polling place, but find in TC and IPTABLES hash may do different cpu? >> > > You need as many nics as cpus to effectivelu use all your processing > power. You can pair-up nics and cpus by configuring appropriate irq > smp affinity. Read in [1] from line 350 on. > Interesting. Sorry if my questions will be stupid. "smp affinity" its was i need, but it not work for me, and never work if i remember =( Maybe Guru of Network ask me where i have simple stupid mistake?
In theory #cat ffffffff > /proc/irq/ID/smp_affinity set mask that all cpus must get interrupts RR but i see in cat /proc/interrupts that all interrupts get only CPU0 On CPU1 0 interrupts i do #cat 2 > /proc/irq/16/smp_affinity #cat 2 > /proc/irq/17/smp_affinity #echo /proc/irq/1[67]/smp_affinity 00000002 00000002 Great. Interrupts go to CPU1 #cat 1 > /proc/irq/16/smp_affinity #cat 1 > /proc/irq/17/smp_affinity #echo /proc/irq/1[67]/smp_affinity 00000001 00000001 Great. Interrupts go to CPU0 #cat 3 > /proc/irq/16/smp_affinity #cat 3 > /proc/irq/17/smp_affinity #echo /proc/irq/1[67]/smp_affinity 00000003 00000003 Strange. Interrupts go to CPU0 only. Where i have mistake? Why i not have RR? Or i mistake in SMP Affinity idea? Thanks for answers! Slavon > Another option is to use recent e1000 nics with multiqueue capability. > Read in [2]. Google for more information. I'm not sure but you'll > probably need non-kerel recent e1000 drivers from sourceforge. > > [1]http://www.mjmwired.net/kernel/Documentation/filesystems/proc.txt > [2]http://www.mjmwired.net/kernel/Documentation/networking/multiqueue.txt > > cheers, > Marek Kierdelewicz > > -- 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
