Tiger speed?

[MacRy]

I'm really looking forward to putting Tiger on my iBook and iMac if the speed difference is as great as everyone is saying for older machines.

 

[daveL]

Aah, I guess you're right. I was confused by the memory constraint that requires a 32-bit app to use a separate 64-bit process if it wants to have an address space larger than 4GB.

It makes sense that an app running in 32-bit mode can only use 32-bit pointers but can still issue 64-bits instructions, because the instruction opcodes don't conflict with each other. Is this correct?

Yes, that's correct. In addition, the memory constraint you refer to is for GUI apps only. The issue is that Apple hasn't gotten all the GUI frameworks migrated to 64-bit, yet. There's really no reason to do so until most/all Macs are G5. Command line apps don't have this restriction; they can be built 64-bit now. This will appeal to the Xserve bunch, for sure.

 

[shorty116]

Did u install the hard drive yourself? Was is it much work?
I only have 384MB RAM and 20GB Hard Drive - hopefully it will still be faster with Tiger tho - I know that Jaguar to Panther certainly brought a speed increase!

yes i did install the hard drive myself, wasn't a problem at all if you follow pbfixit.com's guide - prying the case apart needs some time, but everything else is some basic screwing job, no problem with the right tools. you should get yourself a 5400rpm HD as the speed increase from 4200 to 5400 is also noticeable. if you really want to do it read the comments of people who have done it on xlr8yourmac.com you'll learn a lot and for me the replacement was kinda fun but it WILL void your warranty. if you got any questions just pm me

Lukas

 

[jimjiminyjim]

It's encouraging to see Apple working on speed in all of these different ways - core image, general speed improvements on the OS, spotlights indexing power, etc. Especially in light of the slow-down in processor advancement of the last year or two. I'm excited to be using tiger - though it'll be a couple of months for me.