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Kontakt GUI slowing with more instances in VEPro
Last post Tue, Apr 24 2018 by santamorphic, 1 replies.
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Posted on Tue, Apr 24 2018 15:46
by santamorphic
Joined on Wed, Jun 04 2008, Posts 157

Hi - 

Does anyone know how to fix this, please...?

As I add more VEPro instances/tabs with 2 instances of Kontakt in each one, the MIDI channel dropdown gets progressively slower. With 19 VEPro instances and 2 Kontakt instances in each, selecting any Kontakt instrument MIDI channel dropdown takes up to 3 seconds for the channel numbers to appear.

I've tried:

+ Increasing the default threrad count per instance in VEPro

+ Turning on and off the fast GUI switching VEPro setting

+ Turning off and on the HiDPI checkbox in VEPro settings

+ Removing MIR from the eLicenser so it doesn't load it with VEPro startup

+ Decreasing the default thread count to 1 and turning on 8 cores in Kontakt settings instead

+ Turning off all unnecessary Windows services and features

+ Changing performance to prefer Background Service instead of Programs, and vice versa

+ Turning off Superfetch

+ Disabling Turbo Boost

+ Disabling the Paging File

None of these made any difference

CPU is no more than 22% utilised. I have more than 100GB of RAM still free, all drives are SSDs. Audio works fine, it's just the GUI dropdowns are becoming crazily slow.

It's as if Kontakt is sharing a single resource across all instances and not load-balancing it across cores, or there is some weird bottleneck somewhere that is not being managed appropriately????

Any ideas?

VEPro Machine: Win 10 Pro, Xeon 4 core, 256GB, SSDs, Quadra K620 GPU.


DAW Client: Logic Pro X, Cubase 10, Nuendo 10, iMac Pro 10/20 Core, 64GB RAM
VEPro Server: Windows 10 Pro x64, 4/8 core, 256GB RAM, SSDs
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