Is Lion or Mountain Lion faster/more stable with Pro Tools 10 than Snow Leopard? I'm running 10.6.8 and was wondering if there are any advantages to upgrading. I don't use the computer for anything but Pro Tools and downloading files sent to the studio.
It may depend on your machine. I have a 2008 Harpertown Pro 8-core. 10.6.8 gives me more tracks at a lower sample buffer than 10.7 or 10.8. This is both with Logic and with Protools HD native. I initially was running PT10HD native on 10.7.2, and wasn't getting the performance I expected. I reverted to 10.6.8 and haven't looked back.
In fact, I have a 10.8.2 partition that I am currently testing with the new UAD 64-bit software, and I can't get it stable under 128 sample buffer, where on 10.6.8, I can run Logic at 32 sample buffer playing back 60 tracks.
Maybe 10.7 and 10.8 are optimized for the newer i5/i7 machines?
Buffer changes with workload
I track flawlessly at 64 samples
mix might go up to 1024 (depends on the mix)
using 12GB of 16 for disk cache
which is like nothing - and I've got room to grow the sessions huge
Adam, like me, is running PTHD, which has disk caching. This allows PT to load the entire project into RAM, and boosts performance significantly. You mention PT10, but not HD. If you do have HD, you should take advantage of Disk Caching.