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VE PRO 7 CPU Spikes on new Mac Pro
Last post Mon, Nov 23 2020 by Cyril Blanc, 4 replies.
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Posted on Mon, Nov 09 2020 09:10
by RootNDoo
Joined on Tue, Nov 25 2008, Posts 52

I'm having some CPU spikes on certain patches across a variety of plug-ins and libraries. What's odd is, while the patch is being played the Kontakt CPU goes from resting 4% to 6% while the VE PRO Cpu meter in the lower right corner jumps from resting 25% to 99%. This is accompanied by cracks and short drops of audio. I'm not sure why it's only certain Legato patches. In this case 8DIO Requiem Choir Legato. 


It also happens with 6 Fr Horns patch in Play from Hollywood Brass, and Spitfire's Brass Legato passages. I'm interested in what could cause the discrepancy between the two CPU readings.


DP 10.13

512 buffer


VE PRO 7 (1056)

4 Buffers

46 threads per instance (single instance)


Mac Pro Catalina 10.15.7

28 Core

256 GB Ram

Mac Pro
Vienna Ensemble 7
Digital Performer 10
Posted on Tue, Nov 17 2020 10:10
by Paul
Joined on Sat, Aug 03 2002, Vienna, Posts 12787

Hi RootNDoo, 

46 threads and 256 GB Ram. Wow. 

Does this also happen when you load ONLY that instance (e.g. 8DIO Requiem Choir Legato)? 


Paul Kopf
Product Manager - Vienna Symphonic Library
Posted on Sun, Nov 22 2020 22:16
by RootNDoo
Joined on Tue, Nov 25 2008, Posts 52

Hi Paul!

It doesn't seem to.

Some progress! I re-saved as a project Instance instead of Server Project,  and it behaves normally.

However, if I click on preferences in VEP (without changing anything), the spikes return. I've been able to duplicate this three times in a row.  

Also, Enabling and Disabling channel sets will make the CPU spikes return.  When the CPU spikes come back, I quit and start VEP again, reloading the project as an instance. CPU behaves normally. 


Any insight? 


Thank you!




Mac Pro
Vienna Ensemble 7
Digital Performer 10
Posted on Mon, Nov 23 2020 11:57
by Cyril Blanc
Joined on Thu, Dec 19 2002, Paris France, Posts 2694


Can you do a screen copy in Activity monitor of those two pages :

File Attachment(s):
ScreenshotU00202020-11-23U0020atU002012.56.53.png (271kb) downloaded 8 time(s).
ScreenshotU00202020-11-23U0020atU002012.53.41.png (274kb) downloaded 4 time(s).

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MacBook Pro 2019 16" + 2 x Odisseey G9 49" Big Sur

MacPro 2010 12 core 2.93 ghz 64 GB Mac OS X 10.11 2722 Rocket Raid Sata III card with 8 x ssd

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