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Unpark CPU cores for more performance.

Boomstick777

Boomstick777

Boomstick777

Soldato
Joined
2 Jan 2012
Posts
12,353
Location
UK.
First, how come nobody ever told me you can do this?! :D

BF4, stuttery mess... Fps in triple digits, yes triple digits, even more than 60fps ;) Yet stuttery mess...

Googled it, disable core parking for fix, thought surely not..

Yet it's only gone and fixed it, nice n smooth now. Thought I would share here, I had never heard of this before.. Big difference..

Anyway I followed this vid, shows you how to do it with handy little prog..


Awesome.
 
Thrust4Money said:
Seems one of them things were it is to good to be true.
Click to expand...

The way it helps with BF4 is, when parked cores are called into action it causes lag, as they need to start from a parked state, (I had 3 parked cores).

When all cores are enabled, there is 0 wait time, so 0 lag. The difference is literally night and day.

Got a nice boost in 3DMARK 11 as well.

Unparking the CPU cores gained me over 100 more points.

3DMARK 11 Score - P19641

jJCJTYp.png

http://www.3dmark.com/3dm11/7894161
 
It is definitely interesting, would it result in running your CPU at its max 24/7? And would it cause a increase in heat at idle.

I.E if you have a 4.4ghz OC at idle would it run 4.4ghz
 
Thrust4Money said:
It is definitely interesting, would it result in running your CPU at its max 24/7? And would it cause a increase in heat at idle.

I.E if you have a 4.4ghz OC at idle would it run 4.4ghz
Click to expand...

No it doesn't mean they will run at max turbo or anything. All enabled (Non parked) cores will still under-volt and clock down if that's how your PC is setup. I.e my CPU during Idle go to 1600mhz @ 0.840v.

Pb48LVh.png


When you un-park cores it just means that Windows has all cores pre-enabled ready to be used when called upon. When a parked core is called upon during desktop program for example, lag wouldn't be noticeable, a heavy threaded game like BF4 calling on a parked core during intense action causes stutter. When cores are all unparked there is 0 stutter.

If you run the Program linked in the OP video, it will tell you if you have any 'parked' cores. If you un-park them you can always re-enable them with the program later on. Def worth trying, night and day difference for me in BF4.
 
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known about it for quite sometime, in fact an easier way is just to use the app http://www.coderbag.com/Programming-C/Disable-CPU-Core-Parking-Utility

remember to run as administrator.

for anyone else dubious Vista implimented core parking, it was useless, isn't needed on 7 or above, just disable it and get free performance. (core parking = semi useful feature for laptop but NOT desktop's so unpark them cores)
 
I am amazed I have never heard of his until now, good find. I'm sure a lot more people will be pleasantly surprised.
 
murah said:
known about it for quite sometime, in fact an easier way is just to use the app http://www.coderbag.com/Programming-C/Disable-CPU-Core-Parking-Utility

remember to run as administrator.

for anyone else dubious Vista implimented core parking, it was useless, isn't needed on 7 or above, just disable it and get free performance. (core parking = semi useful feature for laptop but NOT desktop's so unpark them cores)
Click to expand...

That's the page the video in OP links to. I never knew about this, so was a shocker for me lol, free performance boost always welcome. Can't believe the difference it has made in game :).
 
Intereseting! You learn something new every day!
I shall try this when i finish work later :)
And im guessing the win7 resource monitor will show up the parked cores also then? I tried on works pc but need higher privileges :(
 
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I've used the coderbag app on my I7 and it worked amazingly! Battlefield 4 was a lot smoother in game and it helped with Arma 3 as well.

I now keep a copy on my server and use it on any PC that comes through my little family and fixing network.
 
BS Dave said:
Do you need to do this every time you log on/play or just once??
Click to expand...

If you run the program linked in the video, it will tell you if you have parked cores. Un-park them, reboot your PC (Won't take effect until you reboot).

That's it, done forever unless you want to reverse it with the program later on..
 
alex_123_fra said:
I've tested this with 2 systems (as per sig) in BF4 and previously posted results.

Makes absolutely no difference in fps.
Click to expand...

That's correct, this fix is if you are experiencing stutter, but fps are ok. The issue is Windows calling on parked cores, it introduces stutter. When you unpark the cores it's no longer an issue..

Parked - Stutter.
Un-Parked - 0 Stutter.
 
Boomstick777 said:
That's correct, this fix is if you are experiencing stutter, but fps are ok. The issue is Windows calling on parked cores, it introduces stutter. When you unpark the cores it's no longer an issue..

Parked - Stutter.
Un-Parked - 0 Stutter.
Click to expand...

Yes quick and simple and may improve overall experience. I wasn't getting stutter but have just left the cores unparked anyway. Parking/stutter should be a far less common issue on Win8 vs Win7.
 
alex_123_fra said:
Yes quick and simple and may improve overall experience. I wasn't getting stutter but have just left the cores unparked anyway. Parking/stutter should be a far less common issue on Win8 vs Win7.
Click to expand...

Yeah, I read that W8 has a different way of managing the cores. So you're right, out of the box W8 does it better. Once you switch off parking in W7 it's smooth, with a capital Smoo.

-----------------------------------------

Some links,

http://battlelog.battlefield.com/bf4/forum/threadview/2955065218806027068/
http://pcrepairaugustaga.com/bf4-parked-multi-core-cpu-fix/
http://www.reddit.com/r/battlefield...tting_cpu_lag_in_battlefield_4_i_found_a_fix/

Hopefully gonna get some time to sit down and play BF4 tonight :)
 
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