Skip to content
View in the app

A better way to browse. Learn more.

The AVSIM Community

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

[BufferPools] PoolSize=0 the holy grail of FSX performance...

Featured Replies

I just gave BP at 0 another try with various TBM settings, but oh boy, what a scary artifacts...! For a moment I thought my GTX285 had died... So I am back to 500000: with that (and some other new settings, not tweaks (see this topic) I now have smooth flight above Extremely dense forests! I just did some acrobatic moves and it still looked good.Apart from the settings mentioned in that other topic, I wonder if some of you who came from BP's in the millions, did also try something like 500000 (as I mentioned earlier): you might get even better results than with 0! Again, try this if you come from millions: if you tried 300000 or 500000 before and 0 gives you better results, please keep it at 0. ;)

  • Replies 1.1k
  • Views 262k
  • Created
  • Last Reply

Top Posters In This Topic

Sounds like the path to your FSX.EXE isn't correct in the file. That would give exactly that result. I've never used a Batch file, I just run fps limiter with command line parameters entered in the shortcut's properties, i.e like "/F:30 E:\FSX\FSX.EXE".Another thought. If you've let FSX install itself into "Program Files" or "Program Files (x86)" on Vista or Win7, then its folders are protected and that might be stopping FPSlimiter. You might need to run it "as administrator" in that case.RegardsPete
EDIT: got it working now, it had to do something with my UAC settings in Win7!

Best regards,

 

Alexander Rietveld

For all of you running XP64 that are experiencing flashing textures, spikes and artifacts when trying to use the BP=0 tweak its all in the drivers. Download the latest Nvidia drivers 196.21 install them and start enjoying this find. This smoothness of FSX with this tweak is amazing. If you are using the 182.50's you will experience corruption with this tweak no matter what your other FSX settings are. bojote,Thanks for sharing and being passionate about your find. I've got many hours involved in testing what you have shared with us and confirm that it works beautifully.Regards,Bob

  • Author
Thanks for sharing and being passionate about your find.
Discovery is atributed to a french guy in 2007... evidently, no one took the advice seriously :) (I'm serious about the french guy)What I've seen so far, is that this tweak is NOT OS dependent. It 'conflicts' with certain settings for some users. Those who took the time to be persistent succeded in making it work and got their reward... of course, this tweak won't make ANY difference if you are not stressing FSX enough, this is for those who want to squeeze the last drop of performance out of FSX under complex scenery/autogen/add-ons.Thanks to you for sharing your experience with others, sometimes people is afraid to try new tweaks and discourage others to post their findings if they don't see success in what others try! we are all part of the same family... even the party poopers that end up using the tweak without telling anyone! :)Tweak on!
Bufferpools = 0 has greatly enhanced performance for me! I guess that it might have increase FPS by at least 30%. However, I also encounter graphical anomalies, but I only see those when my FPS are way high (like 60) as with default aircraft or VFR flight..
Try adding in FPS Limiter.exe. This resolves 99% of the graphical anomalies for me with balance cured by just using a small bufferpools setting. In either case, this find seems like a good thing to me.Noel

Noel

System:  9900X3D Noctua NH-D15 G2, MSI Pro 650-P WiFi, G.SKILL  64GB (2 x 32GB) 288-Pin PC RAM DDR5 6000, WD NVMe 2Tb x 1, Sabrent NVMe 2Tb x 1, RTX 4090 FE, Corsair RM1000W PSU, Win11 Home, LG Ultra Curved Gsync Ultimate 3440x1440, Phanteks Enthoo Pro Case, TCA Boeing Edition Yoke & TQ, Cessna Trim Wheel, RTSS Framerate Limiter w/ Front Edge Sync.

Aircraft used in MSFS 2024:  Fenix A320,  Aerosoft CRJ, FBW, WT 787X, I-Fly 737 MAX 8, Citation Longitude.

 

I've never used a Batch file, I just run fps limiter with command line parameters entered in the shortcut's properties, i.e like "/F:30 E:\FSX\FSX.EXE".
Whose shortcut? FSX or FPS Limiter?
  • Commercial Member
Whose shortcut? FSX or FPS Limiter?
FPS Limiter -- those are FPS limiter commands.Pete

Win10: 22H2 19045.2728
CPU: 9900KS at 5.5GHz
Memory: 32Gb at 3800 MHz.
GPU:  RTX 24Gb Titan
2 x 2160p projectors at 25Hz onto 200 FOV curved screen

I went ahead and installed the suggested driver on 3 different Xpx64 system, all 3 displayed the same result. I ran this check on a P35 DDR3, x48 DDR3 and x58 DDR3 systemsWhat I noticed was in window mode it was consistently choppy flight @ BP=0 but in full screen it appeared somewhat smoother on all systems and I do mean

I first tried the BP=0 tweak a couple of days ago, but did not get much chance to fly with it. Thursday evening was my first real chance and I flew for a few hours in two different scenarios. I posted screenshots from the first session, a dusk flight thru Venice, and they are in the screenshots forum. During the Venice flight I flew around the city at various altitudes. Everything--panning, switching views, fast flight, slow flight...was better. My fps were right at 30, which I feel were outstanding given the density of the scenery. And I felt the flight was smoother--much more like watching a movie. With my original value of BP=5000000 the sim was generally smooth, but panning or turning could cause the odd stutter (usually about every 90 degrees).I then tried an extended Tileproxy flight again. I flew from KAPC (Napa County) north, did a touch n' go back at the airport, then flew to the Nuttree in Carenado's 172. I don't know if fps were better, even without the tweak my Tileproxy performance was always at my locked framerate of 30 outside of very dense scenery areas, where it will fall into the low to mid 20's. But Tileproxy's performance was much smoother--again more of a cinema like experience.I saw no visual or texture anomalies during the flight other than the initial load, where it seemed to take a tad longer for the textures to appear.Because Tileproxy performs better for me on SP 1, I only use that release of FS-X. I also turn building shadows off for Tileproxy flights and for Aerosoft's Venice--it tends to improve performance slightly and in the case of Tileproxy, they are mostly unneeded outside of major cities. I think I already mentioned my use of an old driver set--178.33, and the way I have AA configured. I've always tried to set up FSX to give maximum detail but with my goal being smoothness. Scenery density is always maxed, and textures are set to 1m. I turn off some of the more intense features of the sim, such as the shadows in the cockpit and bloom. Water is always at 2x low. I also have a modified cloud set (128x128 textures) which I ported from FS9. Last, I use my own add-on, Soft Horizons, which you can notice in the Venice shots--it tends to offer me a more realistic haze. Soft Horizons doesn't affect performance, but I thought I would mention it in case my screenshots look different or more muted.I don't fly in windowed mode, so I don't know if Nick's observations would apply to an experience in that mode for me. My next test will be a Tileproxy flight of a couple of hours in Lionheart Creations Epic. With BP=5000000 texture draws stay caught up even at the Epic's speed. They will have to stay that way for me to keep the BP=0 tweak.-JohnEdit. I should have also mentioned that my TEXTURE_BANDWIDTH_MULT=40

Have tried this tweak with several different TBM settings.As David Roch pointed out, 60 TBM also seems to work best with BP=0 for me.Also, this is the first time I was able to run at Unlimited FPS setting with no real stutters associated.HOWEVER, the artifacting is present with every pan of the view and never clears up throughout the flight. Also, random ground textures will flash even when looking straight ahead without panning. Further, with TBM settings > 70, my video card completely freaks out and I get dots/artifacting that persists to DESKTOP and I have to reboot computer to remove them. So I think that proves if anything that BP=0 will NOT result in FSX defaulting to standard BP, because those results are unique. OVERALL, I will be reverting to old settings. (BP 200MB, TBM 40) This much artifacting just isn't worth any kind of perceived increase in smoothness. I can understand folks who would want to stick with it if they are not getting the associated glitches though.Last thing, thanks NickN for doing some comprehensive testing for those of us that don't have the skillset or time to do it properly.System:Core 2 6850, OC'd to 3.54 gigs DDR2GTX 285

lotusban11.jpg

 

Dave Creed

  • Author
my video card completely freaks out and I get dots/artifacting that persists to DESKTOP
If you guys read over and over the thread you'll notice what the common denominator for the BP=0 success seems to be...Looks like a mix of Locked FPS & TBM.. so, for those of you (still wanting to experiment) LOCK your framerate & play with TMBs between 60 and 90 (Thanks David for that)

Win XP SP3 32bit here...... Latest Nvidia drivers.... 196.21 ..........BP set to 0Had a positive response from FSX... Flights very smooth, display very crispDan

If you guys read over and over the thread you'll notice what the common denominator for the BP=0 success seems to be...Looks like a mix of Locked FPS & TBM.. so, for those of you (still wanting to experiment) LOCK your framerate & play with TMBs between 60 and 90 (Thanks David for that)
Well, I tried all kind of things (TBM from 40 to 90, locked and unlocked from high to low and the limiter and even two different 196.xx divers for my GTX285, and all that in all possible variations) but BP at zero gives me horrible artifacts, not always immediately, but they will come. And as Valcor says, the artifacts even (partially) stay when I quit FSX: I have to restart the computer to get rid of it. I have to add though, I see you have autogen at Dense, right? And that with a CPU at 4.2! I have autogen at Extremely dense (world of difference) and my i7 920 runs at 3.3 (Bufferpool at 500.000). So I shouldn't be complaining... ;) (I do have various nHancer settings different from NickN and I also run at 1680x1050x16 instead of 1680x1050x32, which helped me a lot).Anyway, on my system BP at zero is simply impossible. It was worth the try though. ;)
  • Author
the artifacts even (partially) stay when I quit FSX: I have to restart the computer to get rid of it.
Funny, I had the EXACT same thing you are describing when I overclocked my Video card.. I had to downclock it just a little bit.I no doubt think BP=0 stresses the card even further, so, overclocking it wont help, are you, by any chance running very high AA and AF settings?
For all of you running XP64 that are experiencing flashing textures, spikes and artifacts when trying to use the BP=0 tweak its all in the drivers. Download the latest Nvidia drivers 196.21 install them and start enjoying this find. This smoothness of FSX with this tweak is amazing. If you are using the 182.50's you will experience corruption with this tweak no matter what your other FSX settings are. bojote,Thanks for sharing and being passionate about your find. I've got many hours involved in testing what you have shared with us and confirm that it works beautifully.Regards,Bob
Interesting. I am using the 182.50's because with any driver set since I get sound popping happening, and this is directly related to scenery complexity. I don't get this with the 182.50 set. I think I will try the latest nV drivers AND the BP setting at 0 and see what happens.Noel

Noel

System:  9900X3D Noctua NH-D15 G2, MSI Pro 650-P WiFi, G.SKILL  64GB (2 x 32GB) 288-Pin PC RAM DDR5 6000, WD NVMe 2Tb x 1, Sabrent NVMe 2Tb x 1, RTX 4090 FE, Corsair RM1000W PSU, Win11 Home, LG Ultra Curved Gsync Ultimate 3440x1440, Phanteks Enthoo Pro Case, TCA Boeing Edition Yoke & TQ, Cessna Trim Wheel, RTSS Framerate Limiter w/ Front Edge Sync.

Aircraft used in MSFS 2024:  Fenix A320,  Aerosoft CRJ, FBW, WT 787X, I-Fly 737 MAX 8, Citation Longitude.

 

Guest
This topic is now closed to further replies.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.