Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756196Ab3DWNHq (ORCPT ); Tue, 23 Apr 2013 09:07:46 -0400 Received: from mail-vc0-f179.google.com ([209.85.220.179]:64026 "EHLO mail-vc0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755835Ab3DWNHp (ORCPT ); Tue, 23 Apr 2013 09:07:45 -0400 MIME-Version: 1.0 Date: Tue, 23 Apr 2013 21:07:44 +0800 Message-ID: Subject: [HELP] Documentation on CPU:/sys/devices/system/cpu/cpuX/cache/indexX/shared_cpu_map From: Ren Zhen To: linux-kernel@vger.kernel.org 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: 916 Lines: 23 Hi all: Can anybody help me to understand the usage of 'shared_cpu_map' in /sys/devices/system/cpu/cpuX/cache/indexX/. when I execute the cmd--'#cat shared_cpu_map', it retures '05'. And my computer use Ubuntu12.04,Intel core i3 CPU. I have read one email in LKML,it says: "The patch also adds a bunch of interfaces under /sys/devices/system/cpu/cpuX/cache, showing various information about the caches. Most useful field being shared_cpu_map, which says what caches are shared among which logical cpus. " But I still cannot catch the meaning of 'which says what caches are shared among which logical cpus'. Thanks. -- Sincerely, Ren Zhen -- 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/