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FS2004 & CPU Core Affinity settings

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  • Author

The biggest threat to your CPU is obsolescence, not heat. :)

 

Sure - that's the problem for all of us. I had a top-of-the-range PC when I started out. Now it's pretty good, but far behind that. It runs FS9 like the wind, which is my main concern. FSX achieves 30 fps mostly, less at busy airports, but I don't fly FSX so much, and when I do, only slow Cessna VFR flying for the scenery. So my current PC will b

The biggest threat to your CPU is obsolescence, not heat. :)

 

 

Thanks for the link, hgs: the links in that thread are all dead now though. I am not sure their error is the same as mine. In any event, I have this working via the batch script...

Martin Stebbing, EGLF (UK)

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I use FS auto start to start CPU Affinity before FS9 launches. It also shuts down when FS9 is done. I get no performance hit at all. Just smooth processing across all 4 cores. Especially when running multiple programs in back round (RC, Flight keeper, Active sky etc.)

Bill McIntyre

Asus StrixB650E-F Gamer, AMD Ryzen 9 7900X3D, Corsair Titanium DDR5 64GB, Samsung 990 PRO-4TB M.2, (4) 2TB SSD's, Corsair H1150i liquid cooler, RTX 2080TI Founders Edition, (2) LG 34" HD Curved Monitor, Sound Blaster Audigy X, 1Kw PC Power & Cooling Power Supply, Corsair Obsidian Full tower Case. MSFS 2024, WIN11 Pro x64                                                                                                                                             

  • Commercial Member

Where is this concern of a single core running hot coming from? I find the entire concept utterly bizarre. I even opened my computer case and looked at my CPU just be certain I wasn't missing something.... and sure enough, I have a single chip on my motherboard. So... is your CPU completely different??? Are you running multiple CPU chips???

 

A statement from someone at Intel (link: http://communities.intel.com/message/125186):

 

However, please keep in mind that you do not need to worry about the temperature per core, you need to check only the CPU temperature, not the cores temperature.

Ed Wilson

Mindstar Aviation
My Playland - I69

Whew! then I didn't actually need to do this, after all...

 

Fans.jpg

 

 


Whew! then I didn't actually need to do this, after all...

 

Is it for a realistic jet noise while simming?

_____

 

I once again checked core usage and core temps. Core 1 shows significantly more usage when simming, but never 100%. I don't worry as long as CoreTemp indicates never more than 35 °C even at hot days with heavy simming.

 

Harald

   Harald Geyer
   Gründer der Messerschmitt Freunde Dresden v. V.

lYI9iQV.jpg

 

 


Where is this concern of a single core running hot coming from?

 

From the same idea that FS9 is a multi-core application just because of some graphs.

  • Author

OMG! No-one is saying "FS9 is a multi-core application" Jim. Where do you find that statement in this thread? All people have said is that FS9 will run on more than one core if you set it up that way. I am not sure that anyone has even said that this is desirable in the long run..

After almost ten years posting on AVSIM forums I am beginning to worry that it is starting to go the way of a number of other discussion groups (like the newsgroup alt.games.microsoft.flight-sim) where no one can post a hypothesis without someone else jumping in to state how stupid and ill-informed that hypothesis is and how much more intelligent and knowledgeable on the subject they are than the original poster. Sarcasm is the usual method... The moment I feel that day has arrived, I shall stop posting here. The forums are supposed to be here to help people and obviously different people will have different areas of expertise. I have mine (I design airports and create bgl files and what have you). Hardware is not really a speciality of mine (though I am A+_ certified and build my own PCs, so I'm not completely ignorant), so I have never even pretended that what I am doing is any more than an experiment based on what other people have suggested. If it's no good, I'll ditch it.

I really suggest, to keep the AVSIM forums a nice place to post and browse, that people stop posting sarcastic one-liners. Belittling your fellow simmers does nothing to make you look superior. Quite the reverse in fact.

Martin

Martin Stebbing, EGLF (UK)

So FS9 must be using more than one core. Whether that helps or hinders performance is a different question, but it does seem that FS9 can be made to run on multi-cores, no? I don't think I am misinterpreting what I am seeing in Task Manager etc.

 

See post #15.

 

Or maybe you mean that multi-core and running on multiple cores are 2 different things?

  • Author

What I am stating Jim is that no one in this thread, as far as I can see, has said that FS9 was created as a multi-core application, just that it can be run on more than one core if you set the CPU affinity that way. On the evidence I have, to state that "FS9 will not run on more than one core" is just not the case. Yes, I say this (as do others here) on the basis of Task Manager information, and on a number of CPU diagnostics programmes I have on my PC, which all show that multiple cores are at 50% when you set the affinity to run FS9 in that way. Given that I have no other programmes running with FS9 for the tests (apart from Windows background processes) I can only assume that the sudden use of more than one core is due to the affinity script I ran to start FS9. If I don't use the script, Core0 shows 80-95% usage in the 'graphs' and the other cores virtually nothing. With the script.. well, I don't need to repeat that.

What did you mean (#55) by 'just because of some graphs'. When the graphs in Task Manager show, say, 50% CPU usage on 3 cores, are you saying that that is in fact not true? Yes, I am assuming that FS9 is using more than one core because that is what Task Manager shows. If this is wrong, I would be interested in hearing your explanation.

I'll have no problem at all in admitting that I have been mistaken, if that turns out to be the case. But I do take issue with people who post unpleasant comments in the guise of 'humour' which are purely meant to belittle others' understanding of the subject, especially when that is all they do, with no proper evidence to support their sneering. As I say (and you have been on this forum even longer than I, Jim), I don't remember people being quite so keen to score points off of other Flightsim enthusiasts in the 'old days'. Disappointing (IMHO)...

 

So, please, explain away Jim: why are the Task Manager graphs not in fact showing what they purport to show?

Martin Stebbing, EGLF (UK)

You know, I keep coming back to look at new posts in this thread, hoping to learn something.

And kudos to the OP for having another look at this issue.

But now, nobody is learning anything any more, not for the last 50 posts.

We should just move on, eh?

Would it be "F" to have all the cores of a quad core used?

Thanks

Ghiom

@martinlest2: I fully agree with you...

 

another observation:

 

when I limit FPS at 24, the "fs9 - core" is nearly at 100%,

when I have unlimited FPS, "fs9 - core" is at about 75%

 

(both times without using fs9_affinity)

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