Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 7 Dec 2002 13:33:08 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 7 Dec 2002 13:33:07 -0500 Received: from web20409.mail.yahoo.com ([66.163.169.97]:16188 "HELO web20421.mail.yahoo.com") by vger.kernel.org with SMTP id ; Sat, 7 Dec 2002 13:33:01 -0500 Message-ID: <20021207184038.34687.qmail@web20421.mail.yahoo.com> Date: Sat, 7 Dec 2002 10:40:38 -0800 (PST) From: Z F Subject: RE: CPU cache problem To: Manish Lachwani , Mark Hahn , linux-kernel@vger.kernel.org In-Reply-To: <233C89823A37714D95B1A891DE3BCE5202AB1AD7@xch-a.win.zambeel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3038 Lines: 92 Hello Manish and Mark The BIOS does not have any info about L2 cache accept for enable/disable switch. I noticed that after the POST message in the table of all installed devices it said CPU 1.7 GHz... Memory installed 256 M (RAM) and CPU cache: NONE. I have upgraded the BIOS on the system and now it says 128K, as it should, according to CPU specifications. Mark tells that /proc/cpuinfo reports L1 cache size (which I assume is 8K+12 K in my case, even though I do not understand what that means) But how to check that L2 is operational? For windows I have ASUSprobe software, which after the BIOS upgrade started to report that CPU has L2 cache, but it reports it regardless of BIOS switch(enable/disable) as if program simply reads the CPU specifications. (Before BIOS upgrade it reported 0K L2 cache.) The question I have is: Is it possible to tell whether or not the kernel sees the L2 CPU cache and its size? Thank you very much for your help Lazar --- Manish Lachwani wrote: > Did you check in the BIOS if there is an L2 cache size mentioned? Not > every > BIOS supports it but you shoud check there ... > > Thanks > -Manish > > -----Original Message----- > From: Z F [mailto:mail4me9999@yahoo.com] > Sent: Friday, December 06, 2002 8:32 PM > To: linux-kernel@vger.kernel.org > Subject: CPU cache problem > > > Hello everybody > > Sorry to bother you with such a question, but I have a > Intel 1.7GHz Celeron processor with ASUS P4S533 motherboard. > The problem I have is that cat /proc/cpuinfo reports that > > cache size : 20 KB > > As far as I know, the CPU has 128K L2 cache. > > The kernel version installed on my computer is 2.4.18. > I tried using cachesize=128 as a boot parameter, but it did not help. > L2 cache is enabled in BIOS. > > Could someone tell me why it is happening, how to fix it and should I > be > worried that the motherboard is defective. > > Thank you very much for your kind help > > Lazar > > __________________________________________________ > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now. > http://mailplus.yahoo.com > - > 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/ > - > 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/ __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com - 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/