FSX unlimited framerate

Martin

"I thank you!!!"

I have been posting the same findings for 4 months now and no one
seems to pay any heed to it.
I too find my average fps increases dramatically when set to
unlimited. I'm not just talking about high spikes of fps but the
entire range. If my fps range is between 30-40 in unlimited and I
then lock it to 40 the fps will DROP to 20-30.

I believe it's counter-productive as FSX will have to WORK extra on
the process of actually limiting the frames rather than just letting
them fly so to speak. I have mine always on unlimited. I also have
my texture bandwidth multi set to 400 in my FSX.cfg. Fiber Frame Time
Fraction entry at 0.6 and increased the Level of Detail entry from its
default 4.5 up to 7.5 to get ultrasharp and extended textures when
using GA planes. The only problem with changing the LOD is if you
ever open the display settings it will change back to 4.5 so requires
manually changing again if any other display settings are changed
within FSX.

Ibby
 >> Stay informed about: FSX unlimited framerate 

Hi Martin C,

I tried a suggestion (by Ibby, I think) to set it to unlimited, and got
quite an improvement, particularly under Vista Ultimate 64-bit, with 4 GB of
DDR3 RAM.

I don't fully understand why it works, but it works, mate.

Regards,
John Ward
"Martin C" <meduseld_remove_this_ DeleteThis @optusnet.com.au> wrote in message
news:dm3a1419tmttsi97137magksi9dmr2qvui@4ax.com...
>I was trying different settings in FSX, following a re-install a
> couple of weeks ago, and found that if I set framerate to 'unlimited',
> it ran at 7 - 12 fps better than if I limited it to 25fps or 30fps. As
> an example, I flew around Pittsburgh (KPIT) airport and to and from
> the city and got 7 - 23fps with framerate limited to 30fps, but got
> low 'teens to mid 30s with framerate unlimited.
>
> It seems counter-intuitive to me, so has anyone an explanation of why
> this is so?
>
> If my memory serves me correctly, someone else had a similar result on
> here some time ago - maybe everybody has done this and I am just
> catching up with the rest of you!
>
> Martin C
>
> 34°53'21.30"S
> 138°40'29.09"E
>
>
 >> Stay informed about: FSX unlimited framerate 

"John Ward" <jrmward.RemoveThis@tpg.com.au> wrote in message
news:48151f44@dnews.tpgi.com.au...
> Hi Martin C,
>
> I tried a suggestion (by Ibby, I think) to set it to unlimited, and got
> quite an improvement, particularly under Vista Ultimate 64-bit, with 4 GB
> of DDR3 RAM.
>
> I don't fully understand why it works, but it works, mate.
>
> Regards,
> John Ward

There's no doubt in my mind that FSX performs best under Vista
Ultimate 64. One of the low framerate airports, for me, has been
New York, La Guardia, with mid-teens at best. I was using 30 FPS and
changed it to unlimited - no change. Then I noticed that I was in
windowed mode so I Alt+Entered into full screen mode and immediately
went to high 20's and low 30's.

It's easy to understand why 'unlimited' will allow very high frame-rates
in some circumstances, but the fact that it also increases frame-rates in
previously FPS challenged situations without any other negative effects
is rather curious. For each frame update FSX has to calculate the position
and appearance of every object in the display along with processing the
flight dynamics, so going unlimited must change the way the frame
generation math processing is performed.
 >> Stay informed about: FSX unlimited framerate 

>     I tried a suggestion (by Ibby, I think) to set it to unlimited, and got
> quite an improvement, particularly under Vista Ultimate 64-bit, with 4 GB of
> DDR3 RAM.

It was me John

I have just made another post thanking Martin as being someone who has
finally discovered what I have been saying for a few months now
without anyones apparent notice!!

Glad it worked for you John

Ibby
 >> Stay informed about: FSX unlimited framerate 

> It's easy to understand why 'unlimited' will allow very high frame-rates
> in some circumstances, but the fact that it also increases frame-rates in
> previously FPS challenged situations without any other negative effects
> is rather curious.  For each frame update FSX has to calculate the position
> and appearance of every object in the display along with processing the
> flight dynamics, so going unlimited must change the way the frame
> generation math processing is performed.

Ian

I'll also tell you another interesting issue I have experienced. My
PMDG 747-400X for FSX has the facility to limit the fps on the gauges
and glass cockpit displays. It can go as low as 5fps. I had it set
to this for quite a while but increasing it now to 30 gives me a
slight overall improvement in performance too.

Ibby
 >> Stay informed about: FSX unlimited framerate 

> Strange. I though windowed mode helped frame rates.
> Crash Lander
>

It does in my case as AA and AF filters etc aren't used but as I dont
like windowed I use fullscreen

Ibby
 >> Stay informed about: FSX unlimited framerate 

>
>     I've found that too, re Vista Ultimate64, mate
>

>
> Regards,
> John Ward"Ian D" <tau... RemoveThis @nowhere.com> wrote in message

John

I'm quite curious to just how much faster Vista Ultimate 64 bit is to
Ultimate 32 bit.
I had Ultimate 32 bit back in January and after all my defrag problems
etc went back to XP.

I off course regret losing Vista in some sense as it cost quite a bit
of money even for an OEM copy £115 and it just sits on the shelf but
enjoy XP's (32bit) performance gains in FSX, benchmarking and other
games. On my Colin McRae DIRT I generally got very good performance
with all settings and res at max but there was a couple of courses
were you raced against other competitors and I got serious slowdown
especially if there was spray of the track too. On XP its so smooth
on these stages. BIOSHOCK also runs far faster on XP than it did on
Vista. Both these cases are off course comparing the 32bit versions.

Ibby
 >> Stay informed about: FSX unlimited framerate 

"Ian D" <taurus.RemoveThis@nowhere.com> wrote in message
news:BeCdnWxPsumGqIjVnZ2dnUVZ_rWtnZ2d@giganews.com...>
>
> There's no doubt in my mind that FSX performs best under Vista
> Ultimate 64. One of the low framerate airports, for me, has been
> New York, La Guardia, with mid-teens at best. I was using 30 FPS and
> changed it to unlimited - no change. Then I noticed that I was in
> windowed mode so I Alt+Entered into full screen mode and immediately
> went to high 20's and low 30's.

Strange. I though windowed mode helped frame rates.
Crash Lander

--
Straight and Level Down Under.
http://www.straightandleveldownunder.net/
 >> Stay informed about: FSX unlimited framerate 

I have always found that FS runs faster in full screen mode because it is
supposed to take full advantage of the graphics card?

--
Yours Quilly,
http://quilljar.users.btopenworld.com/
 >> Stay informed about: FSX unlimited framerate 

> I did notice Ibby but as I haven't got FSX I couldn't make a meaningful
> contribution. However, whereas on FS9 I don't see a significant FR
> improvement when setting it to unlimited I do get  much greater fluidity..
>
> For some months now I've been running FS9 with FR set at 22 fps as setting
> it down to the minimum acceptable seems to be the expert advice. But I have
> had quite a bit of stuttering and a feeling (subjective I admit) of a lack
> of general smoothness or fluidity. The problem I have found with going to
> unlimited is twofold. First the frame rate goes from very high to very low..
> The second is that texture fill gets slower. However, I've found a
> compromise which is to go to a level slightly above what the PC can easily
> achieve, in my case 36 fps. Since doing this I have a smoother sim
> experience. I still get some stutters and irritating pauses but that's my
> system which needs upgrading and I hope to do that later this year.
>
> I agree with you in that rather than being a *target* for the frame rate,
> the adjustment is in fact a limiter and when it comes up against the limit
> this creates extra work.
>
> --
> Iain
> Rugby, UK

When I used to run FS9 I did however have my fps limited to around
40. With FSX perhaps my XFX 8800 Ultra XXX graphics card helps with
the texture fill as it has extremely high bandwidth.
I have my Level of Detail set to almost twice the default so sharp
textures extend far further from the aircraft with no 'popping' from
slightly blurry to sharp when using GA planes

Ibby
 >> Stay informed about: FSX unlimited framerate 

"Ibby" <ibby11 DeleteThis @tiscali.co.uk> wrote in message
news:b725b474-74ac-4829-8aa4-62ea10d181b5@m3g2000hsc.googlegroups.com...
> Martin
>
> "I thank you!!!"
>
> I have been posting the same findings for 4 months now and no one
> seems to pay any heed to it.

I did notice Ibby but as I haven't got FSX I couldn't make a meaningful
contribution. However, whereas on FS9 I don't see a significant FR
improvement when setting it to unlimited I do get much greater fluidity.

For some months now I've been running FS9 with FR set at 22 fps as setting
it down to the minimum acceptable seems to be the expert advice. But I have
had quite a bit of stuttering and a feeling (subjective I admit) of a lack
of general smoothness or fluidity. The problem I have found with going to
unlimited is twofold. First the frame rate goes from very high to very low.
The second is that texture fill gets slower. However, I've found a
compromise which is to go to a level slightly above what the PC can easily
achieve, in my case 36 fps. Since doing this I have a smoother sim
experience. I still get some stutters and irritating pauses but that's my
system which needs upgrading and I hope to do that later this year.

I agree with you in that rather than being a *target* for the frame rate,
the adjustment is in fact a limiter and when it comes up against the limit
this creates extra work.

--
Iain
Rugby, UK
 >> Stay informed about: FSX unlimited framerate 

"Iain Smith" <iainsmithdotrugbyatbtinternetdotcom> wrote in message
news:VbOdnQIGL8QDaYjVnZ2dneKdnZydnZ2d@bt.com...
>
> "Ibby" <ibby11.RemoveThis@tiscali.co.uk> wrote in message
> news:b725b474-74ac-4829-8aa4-62ea10d181b5@m3g2000hsc.googlegroups.com...
>> Martin
>>
>> "I thank you!!!"
>>
>> I have been posting the same findings for 4 months now and no one
>> seems to pay any heed to it.
>
> I did notice Ibby but as I haven't got FSX I couldn't make a meaningful
> contribution. However, whereas on FS9 I don't see a significant FR
> improvement when setting it to unlimited I do get much greater fluidity.
>
> For some months now I've been running FS9 with FR set at 22 fps as setting
> it down to the minimum acceptable seems to be the expert advice. But I
> have had quite a bit of stuttering and a feeling (subjective I admit) of a
> lack of general smoothness or fluidity. The problem I have found with
> going to unlimited is twofold. First the frame rate goes from very high to
> very low. The second is that texture fill gets slower. However, I've found
> a compromise which is to go to a level slightly above what the PC can
> easily achieve, in my case 36 fps. Since doing this I have a smoother sim
> experience. I still get some stutters and irritating pauses but that's my
> system which needs upgrading and I hope to do that later this year.
>
> I agree with you in that rather than being a *target* for the frame rate,
> the adjustment is in fact a limiter and when it comes up against the limit
> this creates extra work.
>
> --
> Iain
> Rugby, UK
>
>

The interesting thing that I have found is that setting the framerate
to unlimited gives good FPS increases in previously low FPS
situations, but this occurs with Vista Ultimate 64 bit only, when in full
screen. In XP Pro I get maybe 2 - 3 additional FPS. I'm beginning
to think this has something to do with the 64 bit drivers since Vista 64
gives higher framerates than XP in all FSX flight situations. John Ward
has found the same thing with his 64 bit Vista Ultimate.
..
 >> Stay informed about: FSX unlimited framerate 

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