Test: Setting CPU Affinity

[SkateZilla]

Likely the Mode from DX9 to DX11 Changed A lot.

[Oceandar]

I'm sorry for my ignorance, but what is the number should I put in the autoexec file ? My CPU is i5 4690k.

 

Thank you

[msalama]

Likely the Mode from DX9 to DX11 Changed A lot.

 

Yup, seems so. And after a hiccup or two with some early patches, it now seems that things are running the smoothest ever. So we're making progress on _that_ front at least, are we not :)

[msalama]

My CPU is i5 4690k.

 

Will check tomorrow, but right now it's off to bed. Too late in my neck of woods already, New Year or not ;)

[Tailhook]

Anyone that doesn't feel like messing with binary numbers can just use the FSX/P3D affinity mask calculator, it's the same thing. Be sure to use the Expert Mode.

 

http://www.gatwick-fsg.org.uk/affinitymask.aspx?SubMenuItem=hardware

Edited January 4, 2017 by Tailhook

[msalama]

should I put in the autoexec file

 

Try "affinity_mask = 12" (without the aphostropes). And if that doesn't help / do anything, nothing at all.

[BitMaster]

I am thinking, IF I get such a lousy 6th gen CPU back again, that I should maybe find the coolest core among the 4 and force DCS on that one with a 1-core OC alone. Saves heat, saves energy, may save your CPU ( heck, seems I burned 2 i7's in less than 3 month...hehe OMG ).

 

What do you think of using it to force DCS use the coolest core ( on 6th gen it differs quite a bit, depending on the lottery luck TIM how far they differ ).

 

My last one, 6700k ( R.I.P. ) had 5-8C° diff coldest-hottest core, depending on what they were calculating.

[Pilotasso]

I have a 2500k 1,2 GHz above its stock clock for 6 years. The fear of cpu life is overrated.

[BitMaster]

I have a 2500k 1,2 GHz above its stock clock for 6 years. The fear of cpu life is overrated.

 

You are LUCKY :)

 

Mine overclocked for 2 years only before it fried. 4.8GHz @ 1.35V was my setting.

 

Actually, that was great, this 6700k held 6 weeks until it refused to boot at all :((( BAAAHHH

[Pilotasso]

Intel made a lot of crap after Sandy Bridge, like cheap TIM and the 6 series was notable for TIM release off from the heat spreader. Before that the spreader was soldered which was far more reliable and had better Temps.

These days you need to de-lid Intel cpu's except the premium 6 and 8 cores

Edited January 11, 2017 by Pilotasso

[BitMaster]

I should have gotten a X99 System with 5820k for gaming as well.

 

have one her as a server and it works so nice and the CPU is so much BIGGER and the retention system looks just superior to the 1151.

 

X99-WS any WS is ok...as you get premium support if its a WS board from Asus, learned that last weeks how they differ between Z170, X99 and again WS. WS has best and fastest service.

 

...and the TIM...still soldered...way better than any delidding procedure

[ustio]

you have chart2 for 2 cores? using I3-4170

[marcwoolery]

http://bitsum.com/processlasso/

 

So far this has been the best improvement on higher quality/smoother game play with DCS 1.5.7. Easy to use also.

 

Still cant manage to get where I want to go. Anywhere between 11 and 50 FPS, some aircraft are better than others.... MIG29s is by far easiest to fly and smoothest, why is that ? F15 has the most stutter. External views are the most satisfying for me, the FLYBY (F3) is the Standard I use, 11 fps to 50 fps. If I can fix that I would be a happy guy. I know the SKY and the ground are major differences, but its gotta work or its NO FUN.

 

I have noticed that mirrors and close up cock pit position cause the most interference, even though in some cases the FPS stays reasonable. The most frustrating is when the VIEW and positioning movement slows down, you cannot control the LOOK & Shoot feature or the VIEW movement, or the radar LOCK reticle. I did realize finally that CTRL F1 is a rather good feature to use when head movement is hard to control. I could never understand what that command was all about, except that I cant look down to see my instruments nor follow enemy aircraft out of view.

 

DELL WIN7 intel i54660 3.20ghz Geforce GT 720 8mg RAM

[SnorreSelmer]

The quick version:

 

Intel i5 up to and including the 7th generation (Kaby Lake): affinity_mask = 12 or 6 (1100b or 0110b) for two cores, affinity_mask = 14 (1110b) for three cores.

 

Intel i7 up to and including the 7th generation (Kaby Lake): affinity_mask = 80 or 20 (01010000b or 00010100b) for two cores, affinity_mask = 84 (01010100b) for three cores.

 

Above answers only apply to regular (K and non-K) versions, not the Extreme-line.

 

EDIT: And yes, I whole-heartedly recommend Process Lasso too. Not so much for the CPU affinity part (I can do that fine in autoexec.cfg), but I like to run DCS with elevated (Above normal) priority.

Edited October 6, 2017 by SnorreSelmer

[=Pedro=]

I have a 2500k 1,2 GHz above its stock clock for 6 years. The fear of cpu life is overrated.

 

I7 2700K at 4,8 - 5,0 GHz for 6 years also. 50 bucks cooling from Thermaltake :music_whistling:

[=Pedro=]

I also use ProcesLasso for X-Plane and the difference in fps/stutter can be easy noticed.

[Fakum]

Iam in the process of trying to understand this, but for starters, should HyperThreading be on or off in the BIOS? Thanks

[=Pedro=]

Iam in the process of trying to understand this, but for starters, should HyperThreading be on or off in the BIOS? Thanks

 

For DCS definitely OFF!

[Fakum]

Thank you sir!

[BitMaster]

For DCS definitely OFF!

 

tried that many moons ago with zero difference.

 

seems like this is a YMMV thing and may or may not help.

 

i think, keep it ON

[RightStuff]

For DCS definitely OFF!

 

A good reason would be nice.

Thanks in advance!

[=Pedro=]

A good reason would be nice.

Thanks in advance!

 

Just an experience with tweaking this, started many GPUs ago ;)

[Quadg]

I can get a much higher stable overclock with hyper threading off.

and higher benchmark scores. and better heat overhead.

and with DCS being 2 threads. you don't need the extra cores, you need the higher overclock.

 

so turn hyperthreading off if you OC. because it gives you more headroom.

which means smoother not faster. in general.

less stutter rather than more frames a second.

 

a bit like setting processor affinity. every little helps.

 

I have 6 cores which is more than enough to stop windows interfering with DCS.

I don't need 12.

don't know whether it would be worth it with a quad core...

[Fakum]

Hmmm, interesting, I will have to look into disabling that as I am not only in the middle of tryiing to diminish the stuttering in DCS 1.5, but also fiddling with overclocking, and I believe my HT is enabled, will check later,,, thanks for the tip!

[Demon_]