Date: Sat, 28 Apr 2007 11:36:31 -0700 From: Garrett Cooper <youshi10@u.washington.edu> To: Reshmakov Roman <ml@rrv.ru> Cc: Roland Smith <rsmith@xs4all.nl>, mukul choudhuri <mukul_chou@yahoo.co.in>, freebsd-questions@freebsd.org Subject: Re: Hardware requirement Message-ID: <4633942F.20102@u.washington.edu> In-Reply-To: <947509420.20070428180835@rrv.ru> References: <500464.36852.qm@web8607.mail.in.yahoo.com> <20070428135750.GA64527@slackbox.xs4all.nl> <947509420.20070428180835@rrv.ru>
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Reshmakov Roman wrote: > We sucessfuly use amd64 arch on Intel Xeon CPUs. EMT64 is fully compatible with the major features in AMD64. However, IA64 (64-bit architecture made by Intel in older Xeons) isn't compatible with AMD Opterons AFAIK. Besides, IA64 doesn't allow binary/library profiling and requires all stuff to be done in 64-bit whereas EMT64 and AMD64 do allow for 32-bit and 64-bit operation, simultaneously IIRC. >> On Sat, Apr 28, 2007 at 12:56:04PM +0100, mukul choudhuri wrote: > >>> Would U Plz. tell me about MAX amount of RAM freeBSD supports per >>> processor in SMP systems? > >> Depends on the architecture. A 32 bit x86 chip can address 4GB, unless >> you have the PAE extension in the kernel. In that case it is 64 >> GB. Beware that some drivers are not compatible with PAE. As Roland suggested, you should go with non-PAE 32-bit (in this case 64-bit operating system) if you want more than 4GB of RAM. Look up the archives for this mailing list on recent discussion centered around this topic. >> The amd64 architecture has been tested with 8 GB. >> For other architectures, see the release notes: >> >> http://www.nl.freebsd.org/releases/6.2R/hardware.html >> >>> Does a dualcore system be considered as SMP system? Say an AMD X2 or Core2Duo? > >> Yes, AFAIK. Yes, they are. SMP = "Symmetric multiprocessor system", which includes hyperthreading, multi-processor, and multi-core capable CPUs (or some hybrid variant of the above). >> Roland -Garrett
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