strode420 wrote:I reverted back to Snow Leopard expecting an increase in performance (teejay let me know if you need an explanation - you need a 2nd computer with a current Snow Leopard installation to do it).
I also upgraded the RAM to max since i did the test, and it looks like Live is doing worse in SL than it was in Lion
The good news is my programs work better, but the bad news is my performance is not better. SEE STATS BELOW
1) Ableton Live CPU Meter % 26% SL / 20% Lion
2)Laptop/Desktop? Make/Model? iMac 27"
3) Operating System? 10.6.8/10.7.2
4) Ableton Live version? 8.2.7 on SL, 8.2.6 when i did the Lion test a month or two ago.
5) CPU Make, Model, and Speed? 3.4 GHz Quad Core i7
6) Amount of Ram? 16 on SL (4 on the Lion test wtf??)
7) Soundcard (and driver version if you know it)? Core Audio with motu/828mk2
8/ Hard Disk Drive Speed (if you know)? 1TB/7200
9) Number of playback tracks? 8
On the Lion install, i got up to about 60 tracks before Live started to glitch out. Now i get 36. I'm not really sure what to think about this, as i was expecting it to speed increase, especially since i have 16gb of RAM now.
Hmmmmm......
Did your MAC ship with Lion? Downgrading from a system that ships with Lion is known to have issues since it doesnt include drivers for the new hardware, so I suspect thats in play here.
I ran the same test on a early 2011 MBP and found the results to show SL as a lot better, and the scores in earlier posts suggest that too.
Another issue that I have found in Lion is that when Live starts using 85% of the CPU, you start to notice these spikes that push the CPU over 100% and cause stutters, pops clicks... i wonder why this is in Lion. Whereas on even a windows machine, Live plays back flawlessly even at 95% usage.