On Thu, Feb 20, 2003 at 12:22:52PM +1100, Paul Mackerras wrote:

As an actual data point: my measurements show that a dual 1GHz G4
powermac is more than twice as fast at compiling PPC kernels as a
1.7GHz P4 (single cpu).

Wow... that's *much* better that I would have guessed.  Is the
compiler the same for each?

You can't fairly compare compiling a PPC kernel on a PPC box with
compiling an x86 kernel on an x86 box.  GCC does more work compiling
for PPC than for x86.

I wasn't trying to compare fairly, mostly get the lowest possible
compile time.


On Wed, Feb 19, 2003 at 09:10:48PM -0800, Eugene Surovegin wrote:

I tried to compile the _same_ PPC kernel for one of boards (440GP
based).

Cross compiling on PIII 755Mhz running SuSE        - 16 min
Cross compiling on G4 PowerBook 1Ghz running YDL   - 6 min

I don't have a PPC host to reasonably compare with, but a 440GP kernel
(linuxppc_2_4_devel) for me builds in 3 minutes 29s (with gcc-2.95).



   --cw

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