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Dirk98

Interesting OS performance tip for P3D

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I found this on youtube:

I can't try it yet, I'm deep in the reinstall.

Any of your thoughts and considerations on this?

Thanks

 

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A reboot before using Prepar3D (or any application) will probably do the same thing.

 

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Jude Bradley
Beech Baron: Uh, ATC, verify you want me to taxi in front of the 747?
ATC: Yeah, it's OK. He's not hungry.

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System specs: Windows 10  Pro 64-bit, i9-9900KF  Gigabyte Z390 RTX-2070, 32GB RAM  1X 1TB M2 for X-Plane 11, 1x 500GB SSD for P3Dv4, 1x256GB SSD for OS.

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8 minutes ago, Jude Bradley said:

A reboot before using Prepar3D (or any application) will probably do the same thing

 

But takes a lot longer.

So far, the little programm does clear the RAM cache as it should.

But I'm also interested if this would help in FS performance?

So far I can't see any negative impact 

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Guenter Steiner
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I've used CleanMem in the past... easier to set-up and manage than using Task Scheduler.  I have tried CleanMem with Windows 10/16GB of fast RAM and saw no difference in sim or OS performance.  Of course, the You Tuber doesn't mention his system specs so it's difficult to know if other parts of his computer could be causing his slow loading (i.e.: is he using a hard drive versus something like a fast NVMe drive?).  Clearing the RAM cache may be useful for folks with limited RAM/loading from a hard drive/bloated sim/cludged-up OS.

For anyone who wishes to test this all out without configuring it all in Task Scheduler, here is easily configured (freeware) CleanMem: https://www.techspot.com/downloads/downloadnow/6646/?evp=92d913d97862d2fd88d35e8868c352d5&file=

Greg

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Just saying - you guys are making things way over complicated.  This is not needed for Prepar3d v4 and Windows 10

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So many addons; So little time to play with them all.

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3 hours ago, Jude Bradley said:

A reboot before using Prepar3D (or any application) will probably do the same thing.

 

Either you didn't watch it attentively enough or did not understand the idea. The author shows that Cache keeps bloating quite fast when P3D is running. So no reboot would help you long enough.

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Most people will have enough free ram left without it being clogged even under demanding circumstances. 

Cache (or "ka-shey") serves a certain purpose. It's not just a surplus appendage. While I didn't explore that option, my experience had thought me  so far that fiddling with the OS like this has usually very little to offer in the way of improvement but opens the door to a lot of potential, difficult to trace, problems.

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Clearing the cache is defeating the concept of taking advantage of reusing data already in memory.

Cache will be (partially) cleared when OS needs to load new data that don't fit in remaining free RAM.

I doubt of any improvement for the sim.

 

 

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30 minutes ago, gaab said:

Clearing the cache is defeating the concept of taking advantage of reusing data already in memory. Cache will be (partially) cleared when OS needs to load new data that don't fit in remaining free RAM. I doubt of any improvement for the sim.

This. If the system gets under RAM pressure, it simply uses some of the RAM previously used by file cache. No improvement.

Cheers!


Luke Kolin

I make simFDR, the most advanced flight data recorder for FSX, Prepar3D and X-Plane.

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Indeed, you actually *want* your caching process to fill up the available RAM...that's the whole idea, to have the data readily-available in fast RAM when it's needed, not all your RAM sitting empty and unused.  Trying to force data out of the cache is contrary to the very purpose of caching, and chasing a metric that promotes clearing data from it is counterproductive.  If/when the memory approaches full usage, the OS will swap out less-recently used data to make room for data still being actively accessed. 

These memory "optimizers" have been around since the DOS days, and I have yet to see a reputable test demonstrate any improvement at all.  Sure, you'll get lots of testimonials from users claiming big improvements, but then you'll get the same thing from completely bald guys swearing that Uncle Bill's Hair Tonic grew all their hair back.  Or maybe it was the hair *on* their back... OK, well, you get the idea.  😜

Regards

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44 minutes ago, w6kd said:

These memory "optimizers" have been around since the DOS days,

QEMM anyone?  :biggrin:

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2 minutes ago, vgbaron said:

QEMM anyone?  :biggrin:

Now you're talking....


Jude Bradley
Beech Baron: Uh, ATC, verify you want me to taxi in front of the 747?
ATC: Yeah, it's OK. He's not hungry.

X-Plane 11 and P3D v4

System specs: Windows 10  Pro 64-bit, i9-9900KF  Gigabyte Z390 RTX-2070, 32GB RAM  1X 1TB M2 for X-Plane 11, 1x 500GB SSD for P3Dv4, 1x256GB SSD for OS.

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49 minutes ago, vgbaron said:

QEMM anyone?  :biggrin:

Yeah, I experimented with that, too.  A hallmark of my misspent youth no doubt.


Rhett

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1 hour ago, vgbaron said:

QEMM anyone?  :biggrin:

QEMM actually provided tangible benefits - it was an EMS and XMS provider, as well as providing access to >640K.

Cheers!

Luke

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Luke Kolin

I make simFDR, the most advanced flight data recorder for FSX, Prepar3D and X-Plane.

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Over a few seconds extrem stutters and hang each time it clears the RAM, i saw no improvement in frames


regards

 

Michael Franz

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