PT8 CPU Usage

[Larry Younkins]

I upgraded from PT7.3 to PT8 and see a very large jump in CPU usage. One session recorded in PT7.3 that consumed 40% of the CPU now requires >70%. Some previously recorded sessions simply won't play due to excessive CPU usage. I did a clean install of Windows hoping that would help matters but to no avail. I also noticed that after creating a new session PT8 consumes roughly 50% of the CPU at idle even when no tracks exist. Can someone confirm these observations?
My hardware/software is:
ASUS A8V | Athlon 64 x2 4400 | 2G RAM | 002R | Windows XP SP2 | PT 8

[rhythmtechnologies]

no problems like that here. i actually noticed a 5% drop in cpu on PT8 LE sessions compared to PT7 M-powered.

have you checked how your processing is distributed to your 2 cpu's?

[rockdrummerrob]

Hello -
I exeprienced the same thing. I realized that upping my CPU Usage for my processors to 90% eliminated my problem by roughly 40%. Then by minimizing my mix window it went down to 10% roughly.

[RoMi]

Originally Posted by rockdrummerrob

Hello -
I exeprienced the same thing. I realized that upping my CPU Usage for my processors to 90% eliminated my problem by roughly 40%. Then by minimizing my mix window it went down to 10% roughly.

= = =

Rockdrummerrob, what are the specs of your system?
It might help Digidesign to identify (locate) the problem faster, if we post our specs.

[RoMi]

I think that I am seeing problems related to this thread in the other threads/posts, but DUsers do not realize it could be graphics related.

[Vegadark]

I would definately like to keep this thread alive, until the issue is resolved. I fear that if it gets forgotten about, it will not be as much of a priority to get fixed. I haven't contacted tech support yet due to the fact that it is not yet fixable from what I have read, but maybe I should so they know of one more person with this problem?

Has anyone heard of a timeframe for a fix on this issue?

[erthquake]

Do you have elastic audio enabled? That would explain the discrepancies when you're idle. Otherwise, do you have many instances of Dverb? The Dverb in PT8 eats more cpu than the version that was in 7.4 and earlier.

[SteveFireland]

Hi Larry,

Does your CPU usage vary depending on the size of your edit/mix windows? If I minimise my edit/mix windows, my machine runs fine - maximise them, even on an empty session, and the CPU jumps way up and the mouse becomes jerky, meters lag behind, etc =/

Cheers,
Steve.

[Larry Younkins]

The box labeled Enable Elastic Audio on New Tracks is unchecked in Preferences/Processing. Is that what you're referring to?
The session I described was recorded in PT7.3 and has the following VIs and plugins: Fxpansion BFD, WAVES IR-L (2 instances) and GTR2, NI Akoustik piano. I don't use Dverb. The load seems to be roughly balanced between the 2 cores and the CPU usage number is what Windows reports. The PT8 usage meter reads around 30% for CPU (RTAS) and 0% for CPU (Elastic) while Windows Task Manager reads >70%.

[Larry Younkins]

Does your CPU usage vary depending on the size of your edit/mix windows?

Yes, I just discovered that minimizing the edit and mix windows drops the CPU usage dramatically. Is there a way to minimize the graphics CPU loading but keep both edit/mix windows up?