Date: Tue, 16 Nov 2004 10:57:16 -0500 From: John Baldwin <jhb@FreeBSD.org> To: freebsd-current@FreeBSD.org Cc: "Wilkinson, Alex" <alex.wilkinson@dsto.defence.gov.au> Subject: Re: Detection of HTT Message-ID: <200411161057.16324.jhb@FreeBSD.org> In-Reply-To: <20041116014121.GJ56252@squash.dsto.defence.gov.au> References: <20041115043907.GI51636@squash.dsto.defence.gov.au> <20041116014121.GJ56252@squash.dsto.defence.gov.au>
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On Monday 15 November 2004 08:41 pm, Wilkinson, Alex wrote: > Is it possible to find out whether HTT is turned on in the BIOS without > having to reboot ? acpidump(8) ? > > It's just that I notice that I have a HTT capable CPU: > > CPU: Intel(R) Pentium(R) 4 CPU 2.80GHz (2793.19-MHz 686-class CPU) > Origin = "GenuineIntel" Id = 0xf29 Stepping = 9 > > Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MC >A,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS, HTT,TM,PBE> > > And > > options SMP > > compiled into the kernel, > > but lack any message in /var/run/dmesg about HTT being enabled. FAQ (please search the archives in the future). The 'HTT' bit in the Features line just means that your processor implements the registers that enumerate logical processors. In other words, that feature means that we can ask the processor how many logical cores it has. It can claim to only have one core though. If it actually has multiple cores then we print the message during boot that you noticed in the other guy's dmesg. -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve" = http://www.FreeBSD.org
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