Date: Mon, 28 Aug 2006 09:00:59 +0100 From: Martin Miedema <martin.miedema@gmail.com> To: ke han <ke.han@redstarling.com> Cc: Wojciech Puchar <wojtek@tensor.3miasto.net>, freebsd-questions@freebsd.org Subject: Re: Intel 64bit / AMD 64 bit advantage Message-ID: <44F2A2BB.8030609@gmail.com> In-Reply-To: <47B7C4B9-BB47-48EE-A70B-9A9D6B671207@redstarling.com> References: <44EF0F92.80108@gmail.com> <DB15A255-9E7E-4D13-A88D-C9763096B143@redstarling.com> <20060827220002.C19869@chylonia.3miasto.net> <47B7C4B9-BB47-48EE-A70B-9A9D6B671207@redstarling.com>
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ke han wrote: > > On Aug 28, 2006, at 4:03 AM, Wojciech Puchar wrote: > >>> 32 vs 64 bits does not give you any raw performance boost for most >>> apps. The >> >> yes it will. FreeBSD/amd64 works at least 10% faster than >> FreeBSD/i386 on athlon64 machine, when i386 version were recompiled >> for P4. With default FreeBSD/i386 - it will be at least 30%. >> >> just because it's not just 64-bit addresses, but twice the registers >> (r8-r15) allowing C compiler to generate more efficient code. >> >> For now AMD64 is the fastest and cheapest architecture - at least >> with AMD processors, not intel clones. (YES now intel makes clones of >> AMD processors) > > I stand corrected ;-)...This is good info, thanks. > > However, to the original post, you will not see 10-30 % performance > difference on your email or file sharing between an Intel Celeron and > AMD Opteron. These types of apps are Disk and Network IO bound. > Spend your money on redundancy/fail-over of hard drive and power > supply. Also choosing a well regarded NIC is important. > > ke han > >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to >> "freebsd-questions-unsubscribe@freebsd.org" > > Thanks a million for this info, this saved he good bunch of money, which I can use better some were else :)
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