Re: x86 or mac powerpc

• Previous message: Keith Keller: "Re: debian "woody""
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Date: Fri, 08 Oct 2004 18:31:24 -0400

In doing these compilation benchmarks, you list the OS (kernel) used,
but you don't mention the compiler used (also you only use linux 2.4).
There are significant differences between version of gcc, and these
will inevitably have an effect on compilation times. I'll assume that
you used the same optimization settings (-OX), but to believe this
benchmark you'd need to assume the optimizations are the same on two
very different architectures (they're not).

What these benchmarks say nothing about, and what will be infinitely
more important for the average user, is how fast these programs run
once compiled. My own experience (similarly equiped Athlon 900, G3
350, running same OS), would lead me to believe that the PPC will in
general take longer to compile programs, but it will run those programs
at a comparable or greater speed. Better yet (from my perspective),
the PPC can perform at the same level while drawing far less power. So
the G3 requires only one fan for the entire case, while the athlon
requires a seperate CPU fan and case fan, just to keep the system from
overheating.

Pascal Bourguignon wrote:

> Marco Stagno <marco.stagnoNOSPAMTHANKS@libero.it> writes:
>
>> On 28 Sep 2004 04:04:13 +0200, Pascal Bourguignon
>> <spam@mouse-potato.com> wrote:
>>
>> >Besides, for all I know (from all the benchmarks I've run up to now,
>> >mainly compilation jobs), Athlon processors are much faster than G3
>> >or
>> >G4. Why, even a 850 MHz Duron with a cheap motherboard and only 128
>> >MB of RAM beats a 800 MHz ppc7450 iMac with 512 MB of RAM! (with the
>> >same Linux OS).
>>
>> just out of curiosity, what do you mean with 'beats'?
>> what tests did you make?
>> thank you in advance
>> bye bye
>
> Compiling various programs.
>
>
> ------------------- ----------- ----------- ----------- -----------
> swi-pl-5.0.9 configure compile install
> ------------------- ----------- ----------- ----------- -----------
> MacOSX 10.2/ppc750 real 45.598 s
> iBook
> 700 MHz user 12.630 s
> 256 MB sys 28.490 s
> -----------
> TOTAL 41.120 s
> ------------------- ----------- ----------- ----------- -----------
> MacOSX 10.1/ppc7400 real 28.493 s 145.96 s 0.033 s
> PowerMac
> user 6.15 s 89.52 s 0.00 s
> 1024 MB sys 14.68 s 12.53 s 0.03 s
> ----------- ----------- -----------
> TOTAL 20.830 s 102.050 s 0.030 s
> ------------------- ----------- ----------- ----------- -----------
> Linux 2.4 /ppc7450 real 28.595 s 137.304 s 0.129 s
> iMac
> 800 MHz user 16.390 s 132.100 s 0.030 s
> 512 MB / 256 KB sys 8.260 s 4.550 s 0.040 s
> ----------- ----------- -----------
> TOTAL 24.650 s 136.650 s 0.070 s
> ------------------- ----------- ----------- ----------- -----------
> Linux 2.4 /athlon real 24.534 s 52.115 s 1.941 s
> 2520 EUR
> 1200 MHz user 7.100 s 18.750 s 0.240 s
> 256 MB / 256 KB sys 3.700 s 1.190 s 0.300 s
> ----------- ----------- -----------
> TOTAL 10.800 s 19.940 s 0.540 s
> ------------------- ----------- ----------- ----------- -----------
> Linux 2.4 /duron real 30.686 s 41.877 s 1.400 s
> 281 EUR
> 850 MHz user 14.200 s 33.540 s 0.560 s
> 128 MB / 64 KB sys 8.570 s 2.090 s 0.340 s
> ----------- ----------- -----------
> TOTAL 22.770 s 35.630 s 0.900 s
> ------------------- ----------- ----------- ----------- -----------
>
>
>
> ------------------- ----------- ----------- ----------- -----------
> lynx-2.8.5 configure compile install
> ------------------- ----------- ----------- ----------- -----------
> MacOSX 10.2/ppc750 real 87.094 s 286.038 s 1.191 s
> iBook
> 700 MHz user 14.490 s 200.940 s 0.030 s
> 256 MB sys 32.880 s 28.340 s 0.220 s
> ----------- ----------- -----------
> TOTAL 47.370 s 229.280 s 0.250 s
> ------------------- ----------- ----------- ----------- -----------
> MacOSX 10.1/ppc7400 real 50.076 s 413.526 s 0.244 s
> PowerMac
> user 14.440 s 208.150 s 0.040 s
> 1024 MB sys 29.920 s 34.240 s 0.160 s
> ----------- ----------- -----------
> TOTAL 44.360 s 242.390 s 0.200 s
> ------------------- ----------- ----------- ----------- -----------
> MacOSX 10.2/ppc7450 real 115.491 s 513.945 s 0.064 s
> iMac
> 800 MHz user 15.050 s 203.360 s 0.020 s
> 512 MB / 256 KB sys 32.960 s 39.870 s 0.040 s
> ----------- ----------- -----------
> TOTAL 48.010 s 243.230 s 0.060 s
> ------------------- ----------- ----------- ----------- -----------
> Linux 2.4 /ppc7450 real 22.735 s 46.205 s 1.193 s
> iMac
> 800 MHz user 13.330 s 43.630 s 0.370 s
> 512 MB / 256 KB sys 8.320 s 1.880 s 0.490 s
> ----------- ----------- -----------
> TOTAL 21.650 s 45.510 s 0.860 s
> ------------------- ----------- ----------- ----------- -----------
> Linux 2.4 /athlon real 32.040 s 44.295 s 0.210 s
> 1200 MHz user 9.080 s 26.520 s 0.040 s
> 1024 MB / 256 KB sys 9.250 s 4.710 s 0.070 s
> cross compil-> ppc ----------- ----------- -----------
> TOTAL 18.330 s 31.230 s 0.110 s
> ------------------- ----------- ----------- ----------- -----------
> Linux 2.4 /athlon real 33.137 s 81.540 s 0.156 s
> 2520 EUR
> 1200 MHz user 10.190 s 52.580 s 0.030 s
> 1024 MB / 256 KB sys 7.830 s 4.020 s 0.050 s
> ----------- ----------- -----------
> TOTAL 18.020 s 56.600 s 0.080 s
> ------------------- ----------- ----------- ----------- -----------
> Linux 2.4 /duron real 33.090 s 112.819 s 0.261 s
> 281 EUR
> 850 MHz user 16.120 s 90.550 s 0.050 s
> 128 MB / 64 KB sys 8.330 s 5.090 s 0.030 s
> ----------- ----------- -----------
> TOTAL 24.450 s 95.640 s 0.080 s
> ------------------- ----------- ----------- ----------- -----------
>
>

-- 
Daniel Boline
Dept of Physics, Boston University

• Previous message: Keith Keller: "Re: debian "woody""
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