Red Hat To Support PowerPC, AltiVec 246
Steve Cowan writes "According to an article at MacCentral, Red Hat has announced that they will produce a GNUPro toolchain and cross compiler for AltiVec-enabled PowerPC processors (such as that found in the Power Mac G4).
It will be interesting to see just what kind of performance gains this will bring, because many believe that the full potential of AltiVec is far from tapped."
Time to convert all those Mac users ;) (Score:4, Insightful)
Last time my Mac-lover best mate tried Linux the poor quality and performance of Linux PPC ports frustrated him. I pointed out that it's catch-22, having lots of fanatical MacOS users means very few try other operating systems, which means there's little incentive for linux companies to make decent ports and so on.
Problems were really apparent - for instance he tried a distro that was for PPC, but it had no Mac customisations what so ever. It just assumed he was using a 3 button mouse for instance. Hopefully if Red Hat do this properly, rather than just use a fancy compiler, OS X will have some competition on its home ground.
Re:Yellow Dog? (Score:2, Insightful)
At any rate, this is not really a desktop-focused announcement. It's about the embedded market. Moto wants embedded Linux to be developed for use on PPC-backed set-top boxes, Internet appliances, network appliances, etc. It may have some positive repercussions for Unix on PPC desktop as well, but since Apple is already hard at work making the gcc work well for PPC and OS X, I'm not clear on exactly what those benefits might be.
Re:The real worth here... (Score:5, Insightful)
I don't see what that has to do with anything. We're talking about porting the toolchain to the hardware. This has nothing to do with MacOs 10 at all. It's about Linux/PPC.
Linux/PPC has been hampered for quite awhile by the lack of good GCC support for things like AltiVec. Performance suffers from lack of optimisation. It sounds like RH is undertaking to fix that. This could be very cool - if they succeed then Linux/PPC programs will be able to take advantage of the full power of the PPC chips. AltiVec doesn't help with everything, far from it, but code which it does help will see truly impressive performance gains.
If you're not clear on what AltiVec [mackido.com] is, try the link out. Basically it's MMX on steroids. It does everything MMX does, better, and some other things besides. It's really very cool tech, and it will be very nice to see Linux/PPC software finally taking advantage of it.
Isn't this just rolling back Apple changes? (Score:4, Insightful)
Isn't this just some marketing hype for RedHat (nee cygnus) just taking the patches already incorporated into Apple's GCC, and putting them into their commercial GCC release?
I don't know how GCC compares to Metrowerks' Compiler, or what Apple is using for different parts of their code (I dunno if MW does OBJ-C, so Apple would likely use GCC at least for that).
I suppose it wouldn't be too hard to look at the binaries and see what they're using.
-SteveK
Probably won't help mac fans. (Score:5, Insightful)
Re:Now THAT is a bit of news that makes me smile. (Score:2, Insightful)
I suppose it would be more interesting to take a day or two and try out three competing OSes. Yellowdog [yellowdoglinux.com], OS X [apple.com] and Redhat [redhat.com] and see how they compare with eachother for a variety of different tasks.
I guess I'm interested in it for the same reason I'm interested in trying out different OSes in the first place. Because I'm curious.
-S
Re:It's got a lot to do with OS X (Score:3, Insightful)
And Lord knows I have, often enough. :) But seriously, it has its place, PPC is great hardware for it, and up until now Linux/PPC has been hobbled by not being able to take real advantage of that fact.
*shrug* Who cares?
This still has nothing to do with OS 10. It has to do with Linux/PPC.
I take that back, indirectly it does have a little to do with OS10. Because Mac is using that horrid slow Mach kernel, and still performing as well or better than Linux/PPC, because of better optimisation. RedHat is poised to eliminate that gap, and make Linux/PPC a much more attractive system.
From where on earth are you getting all this?
Re:Good way to make inroads. (Score:0, Insightful)
Re:Time to convert all those Mac users ;) (Score:1, Insightful)
I use Linux because I like the ability to fully choose how my car will run and be able to modify it based on my needs for that day/week/month/year, not have my milage be dependant on what the parent company determines to be the "average" or "optimal". I do not want to have to take out a blowtorch to make modifications.
I use Linux because I want the ability to decide if I want my car to look like this [hwextreme.com] or these [coolcasemods.com] and not have to be limited to the 4 or 5 styles available here [apple.com]. And because I want to be able to fit more than 4 (1) people (5.25 drives) into my car if I so please and not have to use a hacksaw to cut out part of the car.
I use Linux because the hardware it runs on is faster than the 'volkswagons' or the 'PT-cruisers' of the computer world and far less likely to flip going around the tight curves.
I use Linux because yes, it is cheaper and because yes, it does run on inexpensive fast hardware and give me the ability to use several operating systems on the same hardware if I so choose.
I use Linux because I do not believe on having choices taken away from me for no good reason and because I do not believe on form over function.
I use Linux because the community doesn't give me the feeling that unless I drive their car I'm somehow inferior.
Re:RedHat on new Macs? (Score:2, Insightful)
Ummm. No. OSX is really NeXTstep 6.1 with a macintosh application environment thrown in. NeXTstep is a proven stable OS that predates Linux by at least 3 years. Furthermore, the core foundation of OSX, known as Darwin is also open source.
Re:RedHat on new Macs? (Score:4, Insightful)
http://www.opensource.apple.com/ [apple.com]
The interface, Aqua, isn't open-source because Apple wants to retain control of it.
I wouldn't call OS X 'largely untested.' It's directly based on NeXT's OPENSTEP operating system, which was known for being very stable and having great developer tools (the game 'Doom' was written on NeXT systems because of this), and OPENSTEP has lineage back to 4.3 BSD.
What's especially interesting is that Darwin runs on Intel PC's. This means that if Apple wanted to make Mac OS X available as an alternative to Microsoft Windows, all it would theoretically take is a recompile for the x86 architecture...
Re:Isn't this just rolling back Apple changes? (Score:5, Insightful)
Uh, no. Not by a long shot.
First, the changes that Apple made to their own version of GCC were not well thought out. Those patches can't simply be applied to the real GCC.
Second, I don't know what "commercial GCC release" you're talking about. The AltiVec patches have been going into the publiv version of GCC for weeks now. Check their mailing list archives for all the gory details.
Re:The real worth here... (Score:3, Insightful)
people still use redhat? (Score:1, Insightful)