Bogomips is not a performance measurement any more than Fuel mileage can be equated with speed of a vehicle. They're vaguely related, you won't see a 100 bogomips machine outrunning a 5000 Bogomips machine, but you could have 2 machines with similar Bogomips ratings which have VASTLY different performance, like a Peterbuilt (with a Cummins, naturally) and a Lamborghini. The mileage might be similar, but the performance isn't.
Your best point of reference is to run the actual app on both potential systems, obviously. Having said that, I can say this. I currently run an AMD64 3500+ (typing on it now), and it compiles about 4x faster than the P4 1.7 that it replaced. In other aspects, there's little difference. Open Office still takes forever to start. It's going to depend on your app, and frankly, I wouldn't put too much faith in generalized benchmarks. They won't speak to the differences for YOUR APP between your particular systems. Also, keep in mind that your Motherboard and RAM will also have a massive impact on performance if the app is very large. You might see a huge benefit from the Extreme Edition or the Athlon64 equivilent, which come with massive Caches. Particularly with AMD, this is obvious. 2 chips can be rated differently solely due to the amount of on-die cache they have. (The 3800+ and the 4000+ are identical, except that 4000+ has more cache. The core speed of the processor is identical). Kev. On Wednesday 16 February 2005 14:36, "J. Rafael S�nchez" wrote: > Hi Folks, > > I'm sure for some of you this is so simple that you can do it with your > eyes closed. But I see myself needing some input concerning this issue. > > I'm trying to determine if I gain anything by going from a P4 system to > a 64bit system. Based on /proc/cpuinfo for both systems here, bogomips > don't seem to be that much different 4300 to 4700. By the way, can I > trust the bogomips value to be accurate. The system is needed for a > floating point intensive application. I suppose, I would see some > improvement if I went from a P3 to P4 or 64bit, wouldn't I? > > And another question, is there some tools out there that I can use to > run on the systems to get a more accurate comparison? > > Thanks for your time. > > Raf. > =================== > > processor : 0 > vendor_id : AuthenticAMD > cpu family : 15 > model : 15 > model name : AMD Athlon(tm) 64 Processor 3500+ > stepping : 0 > cpu MHz : 2210.764 > cache size : 512 KB > fpu : yes > fpu_exception : yes > cpuid level : 1 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > mca cmov pat pse36 clflush mmx fxsr sse sse2 syscall nx mmxext lm > 3dnowext 3dnow > bogomips : 4374.52 > TLB size : 1088 4K pages > clflush size : 64 > cache_alignment : 64 > address sizes : 40 bits physical, 48 bits virtual > power management: ts fid vid ttp > > processor : 0 > vendor_id : GenuineIntel > cpu family : 15 > model : 2 > model name : Intel(R) Pentium(R) 4 CPU 1.80GHz > stepping : 9 > cpu MHz : 2399.771 > cache size : 512 KB > fdiv_bug : no > hlt_bug : no > f00f_bug : no > coma_bug : no > fpu : yes > fpu_exception : yes > cpuid level : 2 > wp : yes > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge > mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm > bogomips : 4767.06 _______________________________________________ clug-talk mailing list [email protected] http://clug.ca/mailman/listinfo/clug-talk_clug.ca Mailing List Guidelines (http://clug.ca/ml_guidelines.php) **Please remove these lines when replying
