Rift and processaffinitymask.

[Maverick494]

There's extensive discussion all over the tech sites, but the link below had fairly concise instructions on the how to's.

http://forum.cakewalk.com/tm.aspx?m=1861804



"It only applies to Windows 7 X64 and X32 and only in systems using more than 2 physicial CPU's and/or more than 2 "logical" cores - ie: Core i7 DAW's. "

Concerning MainThreadCPU...the Beta Tech forum is unavailable at the moment, but here is the dev quote I had pulled from the FAQ a couple of days ago:

I assume that this would have a negative impact on a laptop battery life if you did this to one with an i7 mobile CPU?

[Warpiglet]

something else you can look at is with rift not running look to see which core is the least active, ideally all cores should be pretty much inactive at rest state, but if you have some nasties on your pc you may find some cores are fairly active. If you find core 1 is less active then all the other cores without rift running you can adjust the config file to use core one rather then core 3. Core 3 is the default. It might not make much difference but it's worth a look into.

Also, rift is not a multi thread program and will not utilize more then one core. Windows will see that the rift core is being fully utilized and then move other threads to the other cores. Unparking the cores like was suggested in a previous post can help a bit depending on the quantity of other threads being run on your computer while running rift.

[Kuldebar]

I assume that this would have a negative impact on a laptop battery life if you did this to one with an i7 mobile CPU?

To some degree, yes. The consensus from discussions I read was that it wouldn't be a huge impact, but an impact, yes.

[Kalizaar]

The link that Kuldebar quoted from has the Rift developer explaining that Rift is multi-threaded. We're seeing 100% on one core because that is the main thread doing a lot of work. The other threads are heading to the other cores which is why we're seeing things like 20%/40%/100%/15%. Core 3 is set as default as others have pointed out.

The fact that the one thread is using 100% in one core on even the fastest CPUs is a little disconcerting though. I guess the question is whether it's just using 100% of the core because it's available, or if there's SO much work to be done on that one thread that even the fastest CPUs can't keep up.

For this upcoming beta phase I urge you all to test first before making these changes that have been mentioned (core parking, etc.)

I'd hate for people to say, "OMG I did core parking and I'm getting 20 FPS more!!" and then we find out it was actually something Trion did to the engine that gave us the massive boost and core parking did nothing but you suddenly have all sorts of people meddling with things they shouldn't be.

[Ethan Macmanus]

There's extensive discussion all over the tech sites, but the link below had fairly concise instructions on the how to's.

http://forum.cakewalk.com/tm.aspx?m=1861804



"It only applies to Windows 7 X64 and X32 and only in systems using more than 2 physicial CPU's and/or more than 2 "logical" cores - ie: Core i7 DAW's. "

Concerning MainThreadCPU...the Beta Tech forum is unavailable at the moment, but here is the dev quote I had pulled from the FAQ a couple of days ago:

http://forums.riftgame.com/showthrea...-Technical-FAQ

I may try the MainthreadCPU fix, but I'm gonna stay away from the 2nd fix.

My computer has issues starting up from a shutdown.

[Giddykins]

My question then, if my game is bottlenecking and one core is 90s-100% all the others are running 30-50%

Can this cause harm to my CPU/Motherboard/Graphic Card?

I have a friend running i7 2.65 Ghz / GTX255 Nvidia Graphic Card

I have another friend running AMD 820 quad Core Phenom II 2.8 Ghz / Nvidia 210 Graphic Card.



Here I am running an AMD 965 Quad Core Phenom II 3.4 Ghz / Radion HD 6950 2GB Graphic Card / A890gxm-a Motherboard / 8GB DDR3 Ram


All running windows 7
Both will admit my setup is over all better, but niether of them have any core issues with this game, where I'm running one core at 100% so I don't believe the few comments I did read about upgrading CPU or that the issue is someone is running older equipment and that is there problem. I am attempting to fix my registry now and see how that goes.

[Giddykins]

So changing the max/min value in the registry did nothing for my system. I guess as long as it's not going to burn up my hardware I wont complain, I play on Ultra with my third core bouncing around the 90s touching 100% from time to time. second I minimize the game or make it run in the background my processor runs all cores between 5-15% and my core temp drops dramatically. I just purchased everything I have new, got a Phantom Nzxt tower with six case fans, running two 200mm, three 120mm, and a 140mm intake on the front. it's not summer yet, so in the end I wonder if there is something I should replace or change.

I am using the stock fan on my processor, so perhaps a difference CPU fan.

as long as someone can reassure me that running this game with one cpu bouncing about 100% isn't going to harm my system... I wont fret to much.

[Zab]

So changing the max/min value in the registry did nothing for my system. I guess as long as it's not going to burn up my hardware I wont complain, I play on Ultra with my third core bouncing around the 90s touching 100% from time to time. second I minimize the game or make it run in the background my processor runs all cores between 5-15% and my core temp drops dramatically. I just purchased everything I have new, got a Phantom Nzxt tower with six case fans, running two 200mm, three 120mm, and a 140mm intake on the front. it's not summer yet, so in the end I wonder if there is something I should replace or change.

I am using the stock fan on my processor, so perhaps a difference CPU fan.

as long as someone can reassure me that running this game with one cpu bouncing about 100% isn't going to harm my system... I wont fret to much.

It shouldn't hurt your system but you should upgade to a decent heatsink/fan combo. Also why not change to MainThreadCPU = 0? on my i7 920 @4.1 ghz my 3rd core was using roughly 80% before i changed it and now all my cores run at a respectable 25-35%.

[Greengrass]

on my i7 920 @4.1 ghz my 3rd core was using roughly 80% before i changed it and now all my cores run at a respectable 25-35%.

And still have same fps?)))