Hyperthreading

IAM4UK wrote on 1/20/2019, 10:45 AM

I've seen numerous posts that suggest hyperthreading should be disabled for better Vegas Pro performance. This makes no sense to me; however, I admit that may be due to lack of understanding.
In this topic, if you have information and insight about how Vegas Pro uses threads versus how it uses cores, please share. If you have benchmarks regarding hyperthreading on/off, please share. If you can explain why hyperthreading should be on or off for Vegas Pro performance enhancement, please share.
Thanks!

Comments

Kinvermark wrote on 1/20/2019, 11:04 AM

Makes no sense to me either. Sounds like urban myth.

Search this forum for "multithreaded" and look for explanations by "astar."

OldSmoke wrote on 1/20/2019, 12:15 PM

I've seen numerous posts that suggest hyperthreading should be disabled for better Vegas Pro performance. This makes no sense to me; however, I admit that may be due to lack of understanding.
In this topic, if you have information and insight about how Vegas Pro uses threads versus how it uses cores, please share. If you have benchmarks regarding hyperthreading on/off, please share. If you can explain why hyperthreading should be on or off for Vegas Pro performance enhancement, please share.
Thanks!

And what do your own tests say?

Proud owner of Sony Vegas Pro 7, 8, 9, 10, 11, 12 & 13 and now Magix VP15&16.

System Spec.:
Motherboard: ASUS X299 Prime-A

Ram: G.Skill 4x8GB DDR4 2666 XMP

CPU: i7-9800x @ 4.6GHz (custom water cooling system)
GPU: 1x AMD Vega Pro Frontier Edition (water cooled)
Hard drives: System Samsung 970Pro NVME, AV-Projects 1TB (4x Intel P7600 512GB VROC), 4x 2.5" Hotswap bays, 1x 3.5" Hotswap Bay, 1x LG BluRay Burner

PSU: Corsair 1200W
Monitor: 2x Dell Ultrasharp U2713HM (2560x1440)

IAM4UK wrote on 1/20/2019, 12:45 PM

 

And what do your own tests say?

In my own renderings, monitoring all the threads/cores via Windows 10 Task Manager, all the resources of my 6th-gen Core-i7 hexa-core CPU seem to be engaged. (And my VCE 2.0 capable R9-390 GPU engages when selected, as well.)

NCARalph wrote on 1/21/2019, 10:52 AM

Mine too and I've certainly never disengaged hyper threading.

OldSmoke wrote on 1/21/2019, 1:05 PM

 

And what do your own tests say?

In my own renderings, monitoring all the threads/cores via Windows 10 Task Manager, all the resources of my 6th-gen Core-i7 hexa-core CPU seem to be engaged. (And my VCE 2.0 capable R9-390 GPU engages when selected, as well.)

But you have not tested it without Hyperthreading. Anyways, in another threat user @gpasko shows that there is improvement on his system.

Proud owner of Sony Vegas Pro 7, 8, 9, 10, 11, 12 & 13 and now Magix VP15&16.

System Spec.:
Motherboard: ASUS X299 Prime-A

Ram: G.Skill 4x8GB DDR4 2666 XMP

CPU: i7-9800x @ 4.6GHz (custom water cooling system)
GPU: 1x AMD Vega Pro Frontier Edition (water cooled)
Hard drives: System Samsung 970Pro NVME, AV-Projects 1TB (4x Intel P7600 512GB VROC), 4x 2.5" Hotswap bays, 1x 3.5" Hotswap Bay, 1x LG BluRay Burner

PSU: Corsair 1200W
Monitor: 2x Dell Ultrasharp U2713HM (2560x1440)