Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265106AbTFMCcF (ORCPT ); Thu, 12 Jun 2003 22:32:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265107AbTFMCcF (ORCPT ); Thu, 12 Jun 2003 22:32:05 -0400 Received: from jadzia.bu.edu ([128.197.20.189]:16040 "EHLO jadzia.bu.edu") by vger.kernel.org with ESMTP id S265106AbTFMCcC (ORCPT ); Thu, 12 Jun 2003 22:32:02 -0400 To: Dave Jones Cc: linux-kernel@vger.kernel.org Subject: Re: cpufreq on Pentium M In-Reply-To: <20030612193015$7974@gated-at.bofh.it> References: <20030612042011$03c0@gated-at.bofh.it> <20030612062010$3dad@gated-at.bofh.it> <20030612193016$6d05@gated-at.bofh.it> <20030612193015$7974@gated-at.bofh.it> Reply-To: mattdm@mattdm.org Date: Thu, 12 Jun 2003 22:45:49 -0400 Message-Id: <20030613024549.078A4720B1@jadzia.bu.edu> From: mattdm@jadzia.bu.edu (Matthew Miller) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1999 Lines: 68 In linux.kernel, Dave Jones wrote: > For info folks, I've now had a dozen or so mails with the same cache > descriptors. Please don't send me any more centrino based outputs, > I have plenty now, thanks 8-) Hi Dave. This is the output from my Celeron 600A system -- it's a tiny bit different from what others posted to the list (an 0x86 instead of an 0x87). My understanding is that this CPU has half the L2 cache of the "real" Pentium M. Hope this is helpful and not annoying. Also, a question: I had assumed that the lack of info in /proc/cpuinfo was simply that an informational problem, and that the cache is actually working. Am I mistaken? (I.e. will having the kernel support this be a huge performance increase?) Thanks! /proc/cpuinfo: processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 9 model name : Mobile Intel(R) Celeron(R) processor 600MHz stepping : 5 cpu MHz : 595.408 cache size : 0 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr mce cx8 sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 tm bogomips : 1186.20 x86info -c: x86info v1.9. Dave Jones 2001, 2002 Feedback to . Found 1 CPU Family: 6 Model: 9 Stepping: 5 Type: 0 [ Original OEM] unknown TLB/cache descriptor: 0xb0 unknown TLB/cache descriptor: 0xb3 Instruction TLB: 4MB pages, fully associative, 2 entries unknown TLB/cache descriptor: 0x86 unknown TLB/cache descriptor: 0x30 Data TLB: 4MB pages, 4-way associative, 8 entries unknown TLB/cache descriptor: 0x2c -- Matthew Miller mattdm@mattdm.org Boston University Linux ------> - 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/