Date: Sat, 14 Sep 2002 21:32:41 -0400 (EDT) From: hackers@d.sparks.net To: Paul James <paul.james@1u.ca> Cc: John Baldwin <jhb@FreeBSD.org>, Doug White <dwhite@gumbysoft.com>, freebsd-hackers@freebsd.org Subject: Re: Dell 2650 SMP perf question Message-ID: <Pine.BSF.4.21.0209142131500.7762-100000@search.sparks.net> In-Reply-To: <1032051059.35814.2.camel@panda.FreeBSDsystems.COM>
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On 14 Sep 2002, Paul James wrote: > Hi, > I was told that this has something to do with the scheduler and, it is > best to wait until the work on the scheduler is complete. > > This is not factual, and if it is incorrect, then please correct me. Any idea when this might happen? Thanks, --- David > > Regards, > > Paul > > On Thu, 2002-09-12 at 16:09, John Baldwin wrote: > > > > On 12-Sep-2002 Doug White wrote: > > > On Wed, 11 Sep 2002, John Baldwin wrote: > > > > > >> > > >> On 11-Sep-2002 Doug White wrote: > > >> > Random notes: > > >> > > > >> > On Tue, 10 Sep 2002 hackers@d.sparks.net wrote: > > >> > > > >> >> Hyperthreading is turned off, I believe. There aren't any > > >> >> "hyperthreading" swithes in the bios I could find, but the "logical > > >> >> processor" option is turned off. > > >> > > > >> > HyperThreading is not supported on FreeBSD at current. It requires some > > >> > ACPI work which hasn't happened yet. > > >> > > >> Not quite. It depends on the BIOS. Some BIOS's include logical CPU's > > >> in the mptable, in which case FreeBSD will work with them fine. Some > > >> only include logical CPU's in the APIC MADT which FreeBSD doesn't yet > > >> use on i386 (we use it on ia64 and will eventually use it on i386 as > > >> we need it for ACPI interrupt routing on SMP.) > > > > > > We went through this a few weeks ago ... I'm still trying to find a system > > > who puts them in the mptable. :-) > > > > Look in the smp archives for people who had it work: > > > > http://docs.freebsd.org/cgi/getmsg.cgi?fetch=33677+0+archive/2002/freebsd-smp/20020630.freebsd-smp > > > > and > > > > http://docs.freebsd.org/cgi/getmsg.cgi?fetch=50804+0+archive/2002/freebsd-smp/20020512.freebsd-smp > > > > > Who's going to do the work? > > > > Probably myself since we need the MADT stuff to work for interrupt > > routing to work under SMP with ACPI. > > > > -- > > > > John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ > > "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > > with "unsubscribe freebsd-hackers" in the body of the message > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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