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#1
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Downside to disabling Hyperthreading?
In the process of troubleshooting CPU errors when playing video track on my MBP (literally ONLY happened when video track was online), I found that disabling Hyperthreading resolved the issue. What is the downside (if there is one) to running PTs with Hyperthreading disabled?
Thanks
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Tim Reisig Main System: Pro Tools Ultimate 23.12, HD Native TB, HD OMNI, S3/Artist Transport/Eucontrol 22.20, Apogee Rosetta 800 w/XHD card, Avid 96 I/O Mac OS 13.2.1, 2018 Mac Mini 3Ghz i5, 32Gig RAM System 2: Pro Tools 23.9 (no Hardware), Mac OS 13.2.1, MBP (Macbook Air M2, 2022 24Gig Ram) |
#2
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Downside to disabling Hyperthreading?
I have had Plugin developers tell me that hyper-threading can improve CPU performance up to 30% beyond non hyper-threaded setups.
But as far as I know that is the only downside
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Daniel HDX - PT12.5.1 - HD I/O 16x8x8 Win10-Pro (v1709)- 6 Core i7-6850k - ASUS X99 Deluxe ii D-Command Main Unit - 'Ole Blue http://www.sknoteaudio.com/ plugins rock and are affordable. |
#3
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Re: Downside to disabling Hyperthreading?
Hi Tim,
how do you disable hyperthreading? Thanks. Cheers Maik
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PT HDN 2024.3, OMNI, SYNC HD, Dock, 2xS1, PT Control, MacPro 5,1 12core 48GB, OSX 12.7.4, BM Decklink Extreme 3D ------------ mars13.de |
#4
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Re: Downside to disabling Hyperthreading?
Quite a large loss in available CPU overhead and a slowdown in multi CPU tasks.
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pro-tools-pc.com TRASHER Pro Tools Utility(updated 4-11-2024) HD Native, Avid 16x16, Eleven Rack, Focusrite Clarett 8preX, UA Quad Apollo TB. Intel I7 9900k Win 10 |
#5
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Re: Downside to disabling Hyperthreading?
Download and install "Xcode" from the App store. Spotlight search for the "Instruments" app (it's in the Xcode package) and launch. Under "Preferences" go to the CPUs tab and un-check hardware multi-threading. This selection gets reset whenever the machine is put to sleep or restarted.
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Tim Reisig Main System: Pro Tools Ultimate 23.12, HD Native TB, HD OMNI, S3/Artist Transport/Eucontrol 22.20, Apogee Rosetta 800 w/XHD card, Avid 96 I/O Mac OS 13.2.1, 2018 Mac Mini 3Ghz i5, 32Gig RAM System 2: Pro Tools 23.9 (no Hardware), Mac OS 13.2.1, MBP (Macbook Air M2, 2022 24Gig Ram) |
#6
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Re: Downside to disabling Hyperthreading?
One thing I HAVE noticed is that when Hyperthreading is disabled, my CPU fan kicks on almost immediately.
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Tim Reisig Main System: Pro Tools Ultimate 23.12, HD Native TB, HD OMNI, S3/Artist Transport/Eucontrol 22.20, Apogee Rosetta 800 w/XHD card, Avid 96 I/O Mac OS 13.2.1, 2018 Mac Mini 3Ghz i5, 32Gig RAM System 2: Pro Tools 23.9 (no Hardware), Mac OS 13.2.1, MBP (Macbook Air M2, 2022 24Gig Ram) |
#7
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Re: Downside to disabling Hyperthreading?
Quote:
The answer is always so highly software and workload specific that just doing the test is the right thing to do. |
#8
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Re: Downside to disabling Hyperthreading?
Mike from Exponential Audio told me that figure....
And we are talking generalizations as well we are not talking about accuracy to the 5th decimal or anything!!
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Daniel HDX - PT12.5.1 - HD I/O 16x8x8 Win10-Pro (v1709)- 6 Core i7-6850k - ASUS X99 Deluxe ii D-Command Main Unit - 'Ole Blue http://www.sknoteaudio.com/ plugins rock and are affordable. |
#9
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Re: Downside to disabling Hyperthreading?
It’s interesting that the worse that software is leveraging a core the more that the other virtual core has available. I hope folks know that CPU meters showing hyperthread core performance are essentially showing a fantasy picture of the world.
Sent from my iPhone using Tapatalk |
#10
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Re: Downside to disabling Hyperthreading?
Here are two screen captures. First is Hyperthreading ON and the second is disabled. Playing the same 15 seconds of a session.
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Tim Reisig Main System: Pro Tools Ultimate 23.12, HD Native TB, HD OMNI, S3/Artist Transport/Eucontrol 22.20, Apogee Rosetta 800 w/XHD card, Avid 96 I/O Mac OS 13.2.1, 2018 Mac Mini 3Ghz i5, 32Gig RAM System 2: Pro Tools 23.9 (no Hardware), Mac OS 13.2.1, MBP (Macbook Air M2, 2022 24Gig Ram) |
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