On Thu, Jan 16, 2003 at 05:26:06PM -0500, Quentin Mason wrote: > I was wondering whether it was common knowledge or whether anyone else has > noticed how much faster it is to compile things on MandrakePPC over an > Intel machine ? > For example: > 500 Mhz 1Mb L2 Cache, 384Mb RAM Wallstreet Powerlogix G3 upgrade, g++ 2.95 ~3mins > Dual 933 MHz Pentium 3, 1Gb RAM , g++ 3.2.1 2.25 >Hrs > > This is on a ~ 1Mb file that I was trying to compile for my research > without ANY optimisation options at all. The file was generated by some > other code and consists entirely of statements like > -1/3*sin(a+b+c)+2*sin(a-b+c). > > I discovered this by accident trying to do some work on my laptop at home > over Xmas; I thought it would be fun to try several of these huge object > files out on my laptop when they take so long on the machines at work. I > have some other files to compile that take >24 hrs w/ >900Mb RAM + >10Mb > stacksize in the office. I could imagine a factor of 2-3 difference, but > to have around 100 including the processor speeds was _very_ surprising. > > Does anyone have any experience to compare to ?
PPC will compile faster on equally matched hardware. At least in my experience. My PowerBook G4 500 will run circles around my Pentium III 750 based Dell laptop. Unfortunately, PPC hardware is hardly equally matched with Intel based architecture hardware. My AMD XP 2100+ primary box runs circles around the G4. One of these days I'm gonna setup a cross compiler on that box for PPC. I have one for building stuff for my TiVo. But never bothered to set something up for Mandrake. -- Ben Reser <[EMAIL PROTECTED]> http://ben.reser.org "America does not go abroad in search of monsters to destroy. She is the well-wisher to the freedom and independence of all. She is the champion only of her own." -- John Quincy Adams, July 4th, 1821
