From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by rv-out-0910.google.com with SMTP id f1so739549rvb.26 for ; Sun, 30 Mar 2008 19:20:11 -0700 (PDT) Message-ID: <86802c440803301920o47335876yac12a5a09d1a8cc9@mail.gmail.com> Date: Sun, 30 Mar 2008 19:20:11 -0700 From: "Yinghai Lu" Subject: Re: [RFC 8/8] x86_64: Support for new UV apic In-Reply-To: <20080331021821.GC20619@sgi.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20080324182122.GA28327@sgi.com> <87abknhzhd.fsf@basil.nowhere.org> <20080325175657.GA6262@sgi.com> <20080326073823.GD3442@elte.hu> <86802c440803301323q5c4bd4f4k1f9bdc1d6b1a0a7b@mail.gmail.com> <20080330210356.GA13383@sgi.com> <20080330211848.GA29105@one.firstfloor.org> <86802c440803301629g6d1b896o27e12ef3c84ded2c@mail.gmail.com> <20080331021821.GC20619@sgi.com> Sender: owner-linux-mm@kvack.org Return-Path: To: Jack Steiner Cc: Andi Kleen , Ingo Molnar , tglx@linutronix.de, linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: On Sun, Mar 30, 2008 at 7:18 PM, Jack Steiner wrote: > > > > if the calling path like GET_APIC_ID is keeping checking if it is UV > > box after boot time, that may not good. > > > > don't need make other hundreds of machine keep running the code only > > for several big box all the time. > > > > YH > > > I added trace code to see how often GET_APIC_ID() is called. For > my 8p AMD box, the function is called 6 times per cpu during boot. > I have not seen any other calls to the function after early boot > although I'm they occur under some circumstances. then it is ok. YH -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org