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Old 04-22-2015, 06:57 AM
Larry O Larry O is offline
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Default Host processors...again

I'm trying to wrap my head around settings on my system. In my little project studio I'm using PT 10.3.9 with an HP ProBook 4540s i7-3612QM 2.10 GHz 8 gig RAM 64-bit Win 7. Under Playback Engine my drop down for host processors shows 8. I'm seeing discussion that a rule of thumb is to use 1 less than total, but I've also seen reference that more than 4 showing may be deceiving. So should I exercise my "rule of thumb" here with 3 or 7? I fully understand not one size fits all, but if the answer is definitive to not acknowledge processors 5-8 I'd appreciate the guidance. Thanks.
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Old 04-22-2015, 07:46 AM
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TOM@METRO TOM@METRO is offline
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Default Re: Host processors...again

"What is best" is still debatable. When I was on 10, I turned off Hyperthreading in the bios, and ran 3 processors in playback engine. This worked well here. Others have claimed better stability with other settings. So... Experiment a little.
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Old 05-02-2015, 06:23 AM
amagras amagras is offline
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Default Re: Host processors...again

I use 6 processors out of 8 at 99% of CPU if this helps you
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Old 05-03-2015, 11:41 AM
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Default Re: Host processors...again

Hi

Im still using a Dual Core system and for some process i use 2 cores and for others 1... yess 1... with excellent results ..
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Old 05-03-2015, 04:40 PM
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albee1952 albee1952 is offline
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Default Re: Host processors...again

Regardless of the advice on other systems, you really need to try the various configs as TOM mentioned. What works for one computer might be all wrong for the next one(and I can see no rhyme or reason). After reading about other folks using 1 less core(than all available), different % settings and Hyperthreading off or on, I tried all possible settings and found what delivered the best performance for me was NOT always the same as what others recommend

I tested with a large session and took note of the cpu meter(at the 64 buffer, just to push things) and whether the session would roll, uninterrupted, and took some notes(yep, with that old analog system of pencil and paper).
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Old 05-04-2015, 04:03 AM
musicman691 musicman691 is online now
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Default Re: Host processors...again

Quote:
Originally Posted by albee1952 View Post
Regardless of the advice on other systems, you really need to try the various configs as TOM mentioned. What works for one computer might be all wrong for the next one(and I can see no rhyme or reason). After reading about other folks using 1 less core(than all available), different % settings and Hyperthreading off or on, I tried all possible settings and found what delivered the best performance for me was NOT always the same as what others recommend

I tested with a large session and took note of the cpu meter(at the 64 buffer, just to push things) and whether the session would roll, uninterrupted, and took some notes(yep, with that old analog system of pencil and paper).
Agreed. For instance when I was heavily using PT10 I did the experimentation like you did and found that oddly enough using 6 processors out of 8 showing gave me the best running and lowest cpu usage as shown in PT's cpu metering.
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