Date: Tue, 20 Sep 2005 11:55:38 +0200 From: rvenne@dental-on-line.fr Cc: freebsd-stable@freebsd.org Subject: Re: smp on dell poweredge freeze: 5.4 p7 Message-ID: <432FDC9A.80400@dental-on-line.fr> In-Reply-To: <b41c7552050920024925f7dd17@mail.gmail.com> References: <200509200600.j8K606fD018445@the-macgregors.org> <432FC2C3.4020402@dental-on-line.fr> <b41c75520509200143474ba9d8@mail.gmail.com> <432FD1AE.1090405@dental-on-line.fr> <b41c7552050920024925f7dd17@mail.gmail.com>
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Claus Guttesen wrote: >>>What PowerEdge-model is it, dual or quad? If dual, did you try to >>>disable HTT in BIOS? >>> >>> >>poweredge 1850 bi cpu xeon 2.8 >>what's the HTT???? >> >> > >It's hyper-threading, the cpu have some extra registers, so the cpu >can get some more work done (in theory) during one cpu-cycle. But most >of the time the improved performance is neglible. If HTT is enabled >one cpu will show up as two logical cpu's. > >So try to disable HTT in BIOS. > >regards >Claus >_______________________________________________ >freebsd-stable@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-stable >To unsubscribe, send any mail to "freebsd-stable-unsubscribe@freebsd.org" > > thanks a lot for answers, in fact here's more informations ACPI APIC Table: <DELL PE1750 > FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 cpu2 (AP): APIC ID: 6 cpu3 (AP): APIC ID: 7 ioapic0: Changing APIC ID to 8 ioapic1: Changing APIC ID to 9 ioapic2: Changing APIC ID to 10 which mean HTT is enabled in bios... I'll take a look for that. I've to take out all my vpn connections !
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