Date: Sat, 18 Mar 2006 00:42:47 -0800 From: Joseph Vella <satyam@sklinks.com> To: freebsd-amd64@freebsd.org Cc: "Jeremy C. Reed" <reed@reedmedia.net> Subject: Re: amd64 webpage, 12GB memory? 64-bit or not? SMP or not? Message-ID: <200603180042.47458.satyam@sklinks.com> In-Reply-To: <Pine.NEB.4.62.0603171958350.10693@pilchuck.reedmedia.net> References: <Pine.NEB.4.62.0603171958350.10693@pilchuck.reedmedia.net>
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On Friday 17 March 2006 20:08, Jeremy C. Reed wrote: > The amd64 webpage http://www.freebsd.org/platforms/amd64.html is not > easily found via front homepage. Searching for "amd64" does not get there. > And "platforms" link is not easily seen on front pages. I may have > overlooked though. Please make this easier to find. In the upper left part of the website homepage, there's a single paragraph. The last sentence of that paragraph has a direct link to the page you refer. > > The amd64 webpage is missing either links to the amd64 Hardware Notes > and release notes or the information provided in them. (For example, the > Hardware Notes mentions Intel Xeon, but amd64 webpage only mentions > Opteron and Athlon.) > > (Should I email the above two comments to freebsd-www@?) > > I was told a remote system is a 64-bit, dual processor with 12 GB memory. > > How can I tell if a 2.80Ghz Xeon is a 32-bit Xeon or a 64-bit Xeon? What > do I look for in the 6.0-RELEASE GENERIC i386 dmesg output? I do see: > > ACPI APIC Table: <PTLTD APIC > > Timecounter "i8254" frequency 1193182 Hz quality 0 > CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2793.01-MHz 686-class CPU) > Origin = "GenuineIntel" Id = 0xf43 Stepping = 3 > > Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,C > MOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> > Features2=0x641d<SSE3,RSVD2,MON,DS_CPL,CNTX-ID,CX16,<b14>> > AMD Features=0x20100000<NX,LM> > Hyperthreading: 2 logical CPUs > real memory = 3489071104 (3327 MB) > avail memory = 3414630400 (3256 MB) > > How can I tell if it can take advantage of "options SMP" (from looking at > 6.0-RELEASE i386 GENERIC output)? (I do see "Hyperthreading: 2 logical > CPUs".) Right after the lines you posted I have "Multiprocessor System Detected: 2 CPUs": Features=0x178bfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,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 real memory = 2147155968 (2047 MB) avail memory = 2091982848 (1995 MB) FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs cpu0 (BSP): APIC ID: 0 cpu1 (AP): APIC ID: 1 I had to recompile my kernel to get that. I found it pretty easy to do, the Handbook tells you how. I'm not sure if this was in there but I had to add "Options SMP" to my kernel config file. Under the section "II. Common Tasks" you'll find Configuring the FreeBSD Kernel: http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html The handbook is the main official source of documentation. I find it to be amazingly complete and accurate. I usually start there for anything I need. > > I was told it has 12 GB of memory. The Hardware Notes also says "The > largest tested memory configuration to date is 8GB." But I only see "real > memory = 3489071104 (3327 MB)". > > (I also looked at NYCBUG's dmesg database but didn't seem to find any same > Xeon.) > > Also maybe answers or advice for above can be listed on the amd64 webpage. > > Thanks, > > Jeremy C. Reed > > echo '9,J8HD,fDGG8B@?:536FC5=8@I;C5?@H5B0D@5GBIELD54DL>@8L?:5GDEJ8LDG1' |\ > sed ss,s50EBsg | tr 0-M 'p.wBt SgiIlxmLhan:o,erDsduv/cyP' > _______________________________________________ > freebsd-amd64@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 > To unsubscribe, send any mail to "freebsd-amd64-unsubscribe@freebsd.org" >
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