I often suggest that apps that handle their own affinity setup do not need to be handled by another app. Reason - you don't know what they do after the alignment to cores. If we run FSX inside an affinity it does not work the same - not many guys know that or indeed what's different. How P3D runs under certain circumstances is also a requirement for research.

On top of that why introduce something where it's not needed? Do we carry a bucket of water in a bucket? No need.

Edited March 17, 20188 yr by SteveW

14 hours ago, GSalden said:

Hi Aerostar,

Steve surely will get back to you. We are very lucky to have someone like him around 

However , as far as I know : use AM for Fs and PL for the rest.

I even use it more enhanced following Steve’s advice :  AM for Fs and Affinity batchfiles ( starting up on specific cores ) for all Fs addons. PL then may do the rest.

 

And we are very lucky we have you Gerard!

Quote

without budget consideration

The most expensive Intel processor you can find. Note: they aren't the fastest. ;)

Writing off the AMD processor line is pretty silly. Running a flight sim isn't only about raw single-thread performance. As many videos show, the AMD ThreadRipper just kills the Intel processor, by allowing you to game, video encode, and stream AT THE SAME TIME, with no performance loss. The Intel chips just die in this scenario.

https://www.youtube.com/watch?v=Mwecv1wm3rU

https://www.youtube.com/watch?v=PQnCWQDlQA4

Edited March 22, 20188 yr by CloudSurfer

http://hwbench.com/cpus/amd-ryzen-threadripper-1950x-vs-intel-core-i7-8700k

You can knock 10-15% off the difference in single-thread performance thanks to all the security patches the Intel chip requires.

I would like to quote Linus Torvalds about now, but his colorful use of language towards Intel would get me banned.

20 minutes ago, CloudSurfer said:

You can knock 10-15% off the difference in single-thread performance thanks to all the security patches the Intel chip requires.

According to most tests so far, desktop systems playing games are likely to see very little difference. Most sites seem to mention a maximum of about a 5% drop in performance for non-server type apps. Even a 10% drop would probably still be within the normal fluctuation of FPS in flight sims. Most of us probably wouldn't even notice it. See https://arstechnica.com/gadgets/2018/01/meltdown-and-spectre-every-modern-processor-has-unfixable-security-flaws/?comments=1&start=40. An interesting paragraph from the linked article:

"The impact of this change will vary wildly depending on workload. Applications that are heavily dependent on user programs and which don't call into the kernel often will see very little impact; games, for example, should see very little change. But applications that call into the operating system extensively, typically to perform disk or network operations, can see a much more substantial impact."

Edited March 22, 20188 yr by vortex681

On 17.03.2018 at 11:47 AM, GSalden said:

I even use it more enhanced following Steve’s advice :  AM for Fs and Affinity batchfiles ( starting up on specific cores ) for all Fs addons. PL then may do the rest.

 

What is the rest like?

Thanks

All other processes that are left : Windows , sound App , whatever it finds.

https://bitsum.com/

Edited March 22, 20188 yr by GSalden

5 hours ago, GSalden said:

All other processes that are left : Windows , sound App , whatever it finds.

https://bitsum.com/

Yes, I have PLPro, but I don't risk messing with any Windows processes and non-game related processes. Any guidelines that you heed?

Thanks!

Yes, the few exe apps and drivers we might run with the sim run up into whatever affinity we specified (started from a bat or by an app like PL) and that's that, until we close them or they close with the simconnect server stopping or whatever.

If they are apps that do their own affinity like the sim itself, then really, there's nothing to do other than start them or let them start as normal. If we do start them with another affinity outside they might not run as we intended.

Apps like PL don't take up anything from the sim but might spring into life to maintain a lasso if it's configured to do it. That in itself may be a concern, so i always say set up without the paraphernalia first, see it's working right, then introduce those and see things work the same.

 

 

This is a hard one , have done lot of tests even with a Ryzen 1800x 2X1080TI it fall to poor performance only 4.1ghz its way off.

then the I9 7920X and 7980XE both perform very well but 5.0ghz is not enough even the 2% gain you get from 2x16 pcie lanes , i mange to get the 4X8 gb mems (32gb) run at 4000mhz c17 stable it did at least 3% from 3600mhz, yes memspeed is as Saab340 tests on Skylake, but they need to bee 100% stable 

Now to my 8700K monster Cpu , have it run 5.4ghz with HT on , mems 2X8gb (16gb) 4266 C17

cooling on the I9 D5 420rad the 8700K AIO cooler NZXT62.

Think a stay with the 8700K for my main P3D v4 PC

Its smooth loadtimes is very good you have more headroom ,i know that i can get 100-200mhz more with HT off.

Price/performance its hard to beat a good 8700K or 8600K

the 8700k rigg https://www.dropbox.com/s/ozn8b4ae81e65m1/Foto 2018-03-22 17 00 30.jpg?dl=0

Edited March 25, 20188 yr by westman

With all these crazy different ideas...can some1 please advise me the “Best” setup for P3D v4? Finally upgraded my Jalopy System I had using Fsx since 2005.  I just Had made a new rig and these are my settings:

i7-8700k oc 4.9ghz

corsair vengeance 2x8gb 3200mhz  DDR4(16gb)

psu 850w

Nvidia Gtx 1080ti FTW3 @ 11Gb

corsair h100iv2 cooler

samsung 960evo 1Tb 

Samsung 850evo 120 Gb

MOBO: Gigabyte Z370 Gaming 7 

Custom tower with lots of cooling 

 

please can some1 tell me their best setup?

im using Ai all converted to P3D v4,

using payware aircraft , 

Using Orbx Global, Orbx lights, Orbx NA openLc,

Rex SF3d & TD w/SC 

As I did not delid my 7940x so I have it running like :

4.8 - 4.7 - 4X 4.3 - 3x 4.2 - 3x 4.1 - 3x 4.0

No AM , no HT. That works the best on my system.

P3D main thread 4.8 on core 0. All other cores are terrain cores and 7-15% loaded. Windows will start on the 4.7 core 1 and spread itself over any core it likes.

This is running on Auto voltage....

Edited April 15, 20188 yr by GSalden

15 hours ago, GSalden said:

No AM , no HT. That works the best on my system.

Gerard with 14 cores I have to say that sounds like a get-around for some kind of 'unknown' operating in your system. I would certainly like to get my tools running on that to see what gives there.

Lets say it's not 14 only 12 cores ignore two for the time being - P3D sees 12.

If we have a 6 core HT enabled P3D sees 12.

Separated tasks over 12 Logical Processors in each case.

12 cores HT enabled 01,01,01,01,01,01,01,01,01,01,01,01 one task per core

What's the difference in the way the code runs?

None.

Can adding 2 LPs make a difference to P3D - maybe with decade old hardware, likely not. With current hardware and storage? Highly unlikely. I've not seen better performance with 6 over 5 worth mentioning, but heat creeps up in relation to those extra LPs. I think this is worth considering especially for overclockers getting higher up that exponential heat curve.

But don't go and change what appears to work best. There are some systems exhibit oddness which is absent with perhaps No AM but usually HT off. SO if you've found a sweetspot leave as-is.

Similarly, worth mentioning since a bit of interest going round about run as Admin yes / no ? Don't change unless re-building - If you built up your system All Admin don't change it. Apps give the option to Run As so as we can match it in with the system. Changing can surface unknown problems built into the system with the security used to install them.

Apps giving the option to set AM should be taken seriously and their own method of utilising AM through their settings should be used and avoid running those within the parent affinity of another process.

Edited April 16, 20188 yr by SteveW