Date: Wed, 21 Sep 2005 17:37:12 +0200 From: Attila Nagy <bra@fsn.hu> To: kono@kth.se Cc: freebsd-amd64@freebsd.org, freebsd-hardware@freebsd.org Subject: Re: Dual core AMD64 4400+ X2 works fine on Abit AV8 Message-ID: <43317E28.1090404@fsn.hu> In-Reply-To: <200509211147.17279.kono@kth.se> References: <200509211147.17279.kono@kth.se>
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Alexander Konovalenko wrote: > 2) recompiled and installed 5.4-STABLE kernel with "options SMP", then I > tested it with old single core CPU > CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 4400+ (2247.42-MHz K8-class CPU) > Origin = "AuthenticAMD" Id = 0x20f32 Stepping = 2 > Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C > MOV,PAT,PSE36,CLFLUSH,MMX,FXSR,SSE,SSE2,HTT> > Features2=0x1<SSE3> > AMD Features=0xe2500800<SYSCALL,NX,MMX+,<b25>,LM,3DNow+,3DNow> > Hyperthreading: 2 logical CPUs Can this "I see hyperthreading, while there is no hyperthreading" cause performance degradation, for example by HTT defaults to off in the recent 5.x builds? -- Attila Nagy e-mail: Attila.Nagy@fsn.hu Adopt a directory on our free software phone @work: +361 371 3536 server! http://www.fsn.hu/?f=brick cell.: +3630 306 6758
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