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Cpu affinity to 2/4 cpus - safe?


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8 réponses à ce sujet

#1
shadowkinz

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Having a lot of trouble frapsing ME3.. sometimes it will record fine then plummet and freeze at single digit FPS, other times it will be relatively smooth with mild stuttering.  Once it happens once, it will happen every time i turn off and on the recording. sometimes after waiting a few minutes (still in game) and try again it will work until eventually plummeting again.

I don't have a 2nd hard drive to record to instead, and only have USB 2.0 which according to the fraps forum -> don't even think about recording with usb 2.0 lol

So my question is, i saw a couple youtube videos suggesting setting CPU affinity for whichever game to 2 cpus, and the affinity for fraps to the OTHER 2 cpus.. thing is in the videos, they were playing older less demanding games.  I'm not sure if it is ok to do with a new game like ME3

Thanks
shadow

side notes:
16gb ram
3.5ghz x4 amd phenom II black
radeon hd 6970
windows 7
paid version of fraps

#2
Valkyria_2

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Setting affinity to a certain game or app, is just telling it to use a certain core for a certain task. Setting fraps to 2 cores and the game to the 2 others is fine.

#3
shadowkinz

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but then am i running the game on only 2 cpus? I don't know how this works i'm not very tech savvy when it comes to actual hardware lol

wouldn't that cause strain?  Or the game would still be using 4 CPUs just 2 would take priority for certain functions?

Can you please explain a little more so i understand fully

thanks for the response, and for any future ones in advance ^_^

Modifié par shadowkinz, 18 juillet 2012 - 07:45 .


#4
Valkyria_2

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*shrugs* if you can't fraps it with your current setup, and really want to fraps stuff. then you have to try, might have to lower settings and stuffs to make it run nicely but, you can't have it all ^^

Modifié par Valkyria_2, 18 juillet 2012 - 07:49 .


#5
shadowkinz

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yeah i guess.. but i was curious if it would cause a lot of strain and cause my CPU to run really hot or something

#6
Valkyria_2

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Only thing that might happen if you run with less cores, is that it might run slower. Altho I'm not entirely sure how many cores ME3 uses to begin with. But the recommended system specs for ME3 is on a dualcore system, so should be just fine.

And no it won't make your system run hot ^^ 

Modifié par Valkyria_2, 18 juillet 2012 - 07:50 .


#7
Guest_BrookNone_*

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Trying what you have suggested cannot hurt but in general I would avoid it. Not because it is not "safe" but because the newer Windows OSes (like Win7) are pretty good about managing threads and processes on multi-core/multi-proc systems.

Given that you have 16 GB of RAM, you might try creating a "ramdrive" using say four or six GB of those sixteen. I've not used ram drives in ages but I think it is still possible to do with Win7 for example. Then have fraps record to the ram drive and copy the files to physical or optical storage when done.

#8
shadowkinz

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hmm ty.. no idea what ram drive does.. gonna look it up ty guys

#9
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A "ram disk" uses your system memory to simulate a hard drive. Read/Write access is very fast since it uses your RAM rather than a traditional hard drive. Now that SSD drives are out I'm not sure they are used as much. Check out this thread from Microsoft. The last entry includes a link to a product that I have not used but would allow you to create a ram disk. If this seems like too much trouble then perhaps the fraps forums (which you seem to have already frequented) may have better ideas.

http://answers.micro...8e465113?auth=1