Good FPS But 3 Second Lags

[mr340 56]

Hi recently i have been getting good FPS . But sometimes when taxing on the runway i have 30FPS an i get these 3 second pause like is laging but with good FPS . Have rexe running but i know is not that because i put the weather to update every 30 minutes . An when it is updating FPS drops i know how it feels when rex is doing that . But my problem is some times taxing an sometime when i am in the sky above 10,000 FT i have like 60FPS an 50 but keep getting these 3 second pause. I normally call this 3 second bumps because it feel like if someone bumps into you when you are running an you have to stop lol. I only get this taxing a lot . Does any have any sugestion ?

[Chock 17,769]

It sounds like something on your system is feeding data faster than another part of your system can handle, and you are getting a bottleneck where it gets backed up. What have you got the LOD radius on?

 

Al

[mr340 56]

It sounds like something on your system is feeding data faster than another part of your system can handle, and you are getting a bottleneck where it gets backed up. What have you got the LOD radius on?

 

Al

 

Hi chock thanks for the quick reply. But i don't even know about that . When i got this system i just put all the graphic an stuff to max . An i never got my fsx to be stuttering an stuff like that . I figure that my computer was well good to handle all graphic setting to max. That is why i once ask here in AVSIM if having two graphic card will make any improvement to my fsx basically what i wanted was to run fsx to max. An with this single graphic card a manage that a little . So if you can please tell me where to check this LOD radius setting i will be glade to look for it an tell you ?

[bonchie 2,305]

Limit your framerate internally.

[mr340 56]

Limit your framerate internally.

 

How do i do that?

[Bert Pieke 7,584]

There are a number of things that can cause FSX to pause..

- Some other program on your PC decides to do it's thing (AV is known for this)

- FSX has it's own bottlenecks, like traffic, weather, scenery

- An FSX add-on can suddenly take over, like an FMS navdata reload..

 

Things to try:

 

- Shut down all other programs on your PC

- Turn traffic down to 10-20%

- Try lower weather settings

 

If this persists, run the Procmon program concurrently with FSX and

examine the evenets that took place at the time FSX hiccupped..

[SpiritFlyer 987]

This thread belongs in the Hardware Forum, but I will leave a link from here.

 

Kind regards,

[Chock 17,769]

In the settings options, you can choose a maximum frame rate, and you can also choose the level of detail radius for things such as terrain and cloud draw distance.

 

With a limit on the frame rates, you will also limit the amount of data your GPU is not only having to load, but also the amount of data it is having to ditch, and even with a capable computer, the transfer of data between the CPU, the RAM on the graphics card, and the RAM on the motherboard can reach points where they are mismatched at the bus speeds whereby they can load and dump things, which is often the reason why even a flying machine of a computer can experience pauses. Doubtless your computer would be more stable in this regard if it was also commanded to be more stable in the rate at which it is being asked to redraw stuff between frames, and it can probably afford to sit happily at an acceptable lower frame rate than the rate at which it may occasionally peak if not prevented from doing so, which is why it is useful to limit the frame rate.

 

Moreover, most people would be inclined to imagine that reducing the range of the detail radius would be the best way to speed things up, and that indeed can be true in some cases if a computer is limited in resources, but with a very capable computer such as yours, reducing the radius can actually make it work harder if other settings remain on more detailed choices, since as you fly along, with a smaller radius of detail surrounding your aircraft, the radius of highly detailed graphics is more often changed, and so detailed data has to be more regularly loaded and dumped from the memory, whereas with a larger radius, things get fed into the RAM at a more even pace, and so there is less likelihood of a data transfer bottleneck occurring. This is one of the reasons why people are sometimes puzzled to see performance actually improve on some higher settings.

 

As with all things computer related of this nature though, what works for one person can seem useless to another, even on systems which ostensibly seem identical in many respects. So it is often worth a bit of experimentaion. And with regard to things such as SLI and Crossfire, that too can be something of a double edged sword, since it too requires the splitting and transfer of processing efforts. Generally speaking, FSX is more inclined to prefer a good CPU to a good GPU, or even two good GPUs, that being a legacy of the time it was developed. An example which illustrates this well, is that you can get acceptable frame rates on a laptop with no dedicated GPU card at all, p[rovided it has a decent processor.

 

Al

[mr340 56]

Thanks a lot everyone . Chock great explanation again . Now i have an extra Graphic card i never install it since i made post here an everyone said its kind of useless because fsx only uses on graphic card. But my friend the one who made the video that you like uses crossfire an he has a stable system never have these problem an his spec's are kind like mines . But then yet again chock you do have a point when you talk about CPU he has I7 extreme edition . I have order one of those CPU. But it hasn't arrive yet for my home studio .

[Noel 4,487]

An when it is updating FPS drops i know how it feels when rex is doing that . But my problem is some times taxing an sometime when i am in the sky above 10,000 FT i have like 60FPS an 50 but keep getting these 3 second pause. I normally call this 3 second bumps because it feel like if someone bumps into you when you are running an you have to stop lol. I only get this taxing a lot . Does any have any sugestion ?

 

The taxiing component is probably just because there is just plain more data to process. Once you're off the ground on an inclined slope you are seeing more sky and so there is less autogen to process, at least thru the front view. I get these too but only last about 1 second. The more complex the conditions, the more likely they will occur. I took off from the new ORBX KJAC in the RealAir Turbine Duke and zero hiccoughs. Reloaded later after a reboot into the QW757, and started seeing hiccoughs. Not sure exactly where the hitch is but it seems to be directly proportional to the complexity of processing involved. Dial back some settings if the hiccoughs are too much I think is the only real cure is Haswell at 6Ghz, running 2800 Ram on my single 1920 x 1200 display ;o)

[mr340 56]

Thanks Noel :)