On Friday 02 December 2005 22:17, Warren Baird wrote:
> BandiPat wrote:
> > Warren,
> > Ever thought about installing a native Linux install with your Mac?
> > I'm guessing you will see quite a difference running Gimp in Linux
> > on that PPC! There are several available now and SuSE has started
> > it's new 10 on PPC as well. If you have the hard drive space, I
> > think it would be worth your time.
>
> Hmm. I was dubious - but the results were more interesting than I
> thought they'd be. I tried using the Ubuntu 5.04 PPC live cd, which
> has gimp v2.2.2 on it. I also retested on mac os x, since I've
> upgraded to a 1.2 ghz ibook since I last tested things.
>
> Here's the full summary: All tests were done on the same 8megapixel
> image (taken with a canon digital rebel xt - the file is slightly
> under 2mb)
>
> ibook 800mhz g4 mac os x: unsharp mask: 75s, gausian blur: 65s
> ibook 1.2ghz g4 mac os x: unsharp mask: 44s, gausian blur: 55s
> ibook 1.2ghz g4 linux: unsharp mask: 22s, gausian blur: 29s
> athlon 1800+ linux: unsharp mask: 17s, gausian blue: 18s
>
> for comparison, photoshop on a 800mhz g4 took about 5s for both
> unsharp mask and gausian blur.
>
> It's not clear to me why the linux version is so much faster on the
> same hardware - There must be something interesting going on...
>
> I'm going to try to get a build of the gimp from source on my machine
> this weekend to see if I can get some profiling info...
>
> Warren
========
It's simple, Apple strangles the Unix that is on the machine. If you
had a straight install of Unix without anything Apple over or under it,
you would see a dramatic increase in speed also.
I read an article a few months ago about the problems associated with OS
X on their machines. I wish I could remember where it was, so I could
point you to it. It's just Apple's way of taking something really good
and making it less than perfect with their add ons. Every user I've
talked to or article I've read remarks how much faster Linux is on the
PPC than OS X. It's a great cpu, sadly Apple didn't want it to appear
that way.
regards,
Lee
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