Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755977Ab3CYCd7 (ORCPT ); Sun, 24 Mar 2013 22:33:59 -0400 Received: from mail-we0-f195.google.com ([74.125.82.195]:39738 "EHLO mail-we0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755674Ab3CYCd6 (ORCPT ); Sun, 24 Mar 2013 22:33:58 -0400 MIME-Version: 1.0 Date: Mon, 25 Mar 2013 10:33:56 +0800 Message-ID: Subject: Question: How to distribute the interrupts over multiple cores? From: Lenky Gao To: linux-kernel@vger.kernel.org Cc: yinghai@kernel.org, mingo@elte.hu, gorcunov@gmail.com, rusty@rustcorp.com.au, sivanich@sgi.com, agordeev@redhat.com Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1774 Lines: 47 Hi everyone, I faced the same problem as this URL: http://stackoverflow.com/questions/13641440/unable-to-distrubute-the-interrupts-over-multiple-cores The question have been closed with no answer. :( My machine have 2x Xeon E5504 processors and running vanilla kernel 3.6.11 in CentOS 6.0. Could anyone give me some tips? PS: [root@localhost ~]# cat /proc/cmdline ro root=/dev/mapper/vg_localhost-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD quiet rd_LVM_LV=vg_localhost/lv_swap SYSFONT=latarcyrheb-sun16 rhgb rd_LVM_LV=vg_localhost/lv_root KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DM apic=debug pci=nomsi [root@localhost ~]# uname -a Linux localhost.lenkydomain 3.6.11 #2 SMP Fri Mar 22 21:13:41 CST 2013 x86_64 x86_64 x86_64 GNU/Linux [root@localhost ~]# echo 6 > /proc/irq/25/smp_affinity [root@localhost ~]# cat /proc/irq/25/smp_affinity 000006 [root@localhost ~]# cat /proc/interrupts | grep eth9 25: 5824 13914 159 128 210 0 0 0 IR-IO-APIC-fasteoi eth9 [root@localhost ~]# cat /proc/interrupts | grep eth9 25: 5824 13927 159 128 210 0 0 0 IR-IO-APIC-fasteoi eth9 [root@localhost ~]# cat /proc/interrupts | grep eth9 25: 5824 13939 159 128 210 0 0 0 IR-IO-APIC-fasteoi eth9 [root@localhost ~]# cat /proc/interrupts | grep eth9 25: 5824 13973 159 128 210 0 0 0 IR-IO-APIC-fasteoi eth9 -- Regards, Lenky -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/