rec.autos.simulators

GP2 timer ticking 6% too fast ??

Edwin H. Heusinkvel

GP2 timer ticking 6% too fast ??

by Edwin H. Heusinkvel » Thu, 14 Nov 1996 04:00:00

Hi there,

The other night, when I was 'driving' on the Hockenheim circuit, I noticed that the
lap-times GP2 reports are about 6% slower than the times measured with a stopwatch:

GP2 time        'real time'     difference
1:46.299        1:40.16         +6.1%
2:36.900        2:28.17         +5.9%
2:06.204        2:00.00         +5.2% (I was a little late stopping the clock :-) )

=> One (1) 'real second' is about 1.06 'GP2 seconds'

I run GP2 on:

- Asus PVI-486SP3 (Award BIOS rev. 2.05)
- Intel 486DX2-66 (overclocked at 80MHz, PCI at 40MHz !)
- 256kB 15ns SRAM L2 cache
- 32MB 60ns FPM RAM
- WD Caviar AC 2850, 850MB EIDE PIO 3 HDD (master on prim. IDE channel)
- WD Caviar AC 2540, 540MB EIDE PIO 3 HDD (slave on prim. IDE channel)
- Mitsumi FX-400 (4x) ATAPI CD-ROM
- Genoa Phantom 64 Pro Video (PCI, 4MB VRAM, S3-Vision968)

- Windows 95
- GP2 US English version 1.0b
- GP2 ran in a full screen MS-DOS box, keyboard controlled, with the following graphics
options:
        - Graphics Detail Mode: Manual
        - Diplay Textures: All Off
        - Plot in Mirrors: All Off
        - Texture in Mirrors: None
        - 3D Diplay Type: SVGA
        - TrackSide Objects: None
        - Frame Rate: 16.0 fps (Estimate = 14.2) (The processor occup. was 70-93%
(straight line driving) )

I also tried the 'Use Estimate' setting of 14.2 fps but things did not change! Furthermore
I tried setting my system clock back to 33MHz and booted DOS 6.20 but to no avail !!

Anybody experiencing the same sort of difference between 'real time' and 'GP2 time' ??
This is making it very hard for me to get into the Hall of Fame ( RJS, if you read this, I
drove 1:38.2xx 'real time' on Hockenheim) :-)

Please, eMail your response cause I don't visit this group very often.

Thanks,

Edwin H. Heusinkveld

The Netherlands

Dan Loyol

GP2 timer ticking 6% too fast ??

by Dan Loyol » Sun, 17 Nov 1996 04:00:00


> Hi there,

> The other night, when I was 'driving' on the Hockenheim circuit, I noticed that the
> lap-times GP2 reports are about 6% slower than the times measured with a stopwatch:

> GP2 time        'real time'     difference
> 1:46.299        1:40.16         +6.1%
> 2:36.900        2:28.17         +5.9%
> 2:06.204        2:00.00         +5.2% (I was a little late stopping the clock :-) )

> => One (1) 'real second' is about 1.06 'GP2 seconds'

> I run GP2 on:

> - Asus PVI-486SP3 (Award BIOS rev. 2.05)
> - Intel 486DX2-66 (overclocked at 80MHz, PCI at 40MHz !)
> - 256kB 15ns SRAM L2 cache
> - 32MB 60ns FPM RAM
> - WD Caviar AC 2850, 850MB EIDE PIO 3 HDD (master on prim. IDE channel)
> - WD Caviar AC 2540, 540MB EIDE PIO 3 HDD (slave on prim. IDE channel)
> - Mitsumi FX-400 (4x) ATAPI CD-ROM
> - Genoa Phantom 64 Pro Video (PCI, 4MB VRAM, S3-Vision968)

> - Windows 95
> - GP2 US English version 1.0b
> - GP2 ran in a full screen MS-DOS box, keyboard controlled, with the following graphics
> options:
>         - Graphics Detail Mode: Manual
>         - Diplay Textures: All Off
>         - Plot in Mirrors: All Off
>         - Texture in Mirrors: None
>         - 3D Diplay Type: SVGA
>         - TrackSide Objects: None
>         - Frame Rate: 16.0 fps (Estimate = 14.2) (The processor occup. was 70-93%
> (straight line driving) )

> I also tried the 'Use Estimate' setting of 14.2 fps but things did not change! Furthermore
> I tried setting my system clock back to 33MHz and booted DOS 6.20 but to no avail !!

> Anybody experiencing the same sort of difference between 'real time' and 'GP2 time' ??
> This is making it very hard for me to get into the Hall of Fame ( RJS, if you read this, I
> drove 1:38.2xx 'real time' on Hockenheim) :-)

> Please, eMail your response cause I don't visit this group very often.

> Thanks,

> Edwin H. Heusinkveld

> The Netherlands

Gp2 automatically "slows" down game time, so that your frame rate
doesn't suffer, so if you want to have 25 fps, and your computer can't
handle it, the game will slow down game time so you experience every
second in the game.  Something like that.

Ray

addi

GP2 timer ticking 6% too fast ??

by addi » Mon, 18 Nov 1996 04:00:00

hi

i ran in adelaide and compared the gp2 time with the time on a 'real'
stopwatch (p166, vga most of the details; 50-80% occupancy):

  gp2: 1m16s000     'real': 1m09s000

and a friend of mine did it on different pc's with different hardware
setup (dx2/66 w overdrive, only the most important details; 70-100%
occupancy):

  gp2: 1m16s000     'real': 1m11s000

now i wonder: are the laps equal, or is there a gap of 2s ? are laps of
different pc's compareable ? any ideas, theories, facts ?

addie


> > Hi there,

> > The other night, when I was 'driving' on the Hockenheim circuit, I noticed that the
> > lap-times GP2 reports are about 6% slower than the times measured with a stopwatch:

> > GP2 time        'real time'     difference
> > 1:46.299        1:40.16         +6.1%
> > 2:36.900        2:28.17         +5.9%
> > 2:06.204        2:00.00         +5.2% (I was a little late stopping the clock :-) )

> > => One (1) 'real second' is about 1.06 'GP2 seconds'

x 'real time' on Hockenheim) :-)
[cut]

> > Please, eMail your response cause I don't visit this group very often.

> > Thanks,

> > Edwin H. Heusinkveld

> > The Netherlands

Art McEwe

GP2 timer ticking 6% too fast ??

by Art McEwe » Tue, 19 Nov 1996 04:00:00

stopwatch:

You've got WAY too much free time on your hands!

addi

GP2 timer ticking 6% too fast ??

by addi » Thu, 21 Nov 1996 04:00:00

you people won't tell me that Edwin H. Heusinkveld and me are the only
ones that reported the discrepancy between the gp2 lap times and the
'real' ones ?

you're absolutely right, Art, but your friend or girlfriend or whoever
has not to be extraordinarely smart to handle a simple stop watch in the
right moments, has she/he ? and she/he has not even to be very good at
it, because i am talking about severeal SECONDS, not several 1/100s.

if the difference would be constant, i wouldnt care. but on different
pc's its different.

get me right, gp2 is fun to me anyway, but if the laps driven on
different pc's are not comparable, then a HOF makes no sense.

addie ?)

btw: i miss the statement of good ol' DG

Erich Mauerb?c

GP2 timer ticking 6% too fast ??

by Erich Mauerb?c » Fri, 22 Nov 1996 04:00:00

IMHO the way this can be explained is as follows:
As long as the processor occupancy is *always* at 100%, real time should be
equal to GP2's time. Any short time over 100% will slow down the game and
real time will get longer. This seems to be fact. If we now assume the
opposite is also true, it would mean that occupancies below 100% actually
SPEED UP the game. IMO this is a major flaw!

Erich.


> hi

> i ran in adelaide and compared the gp2 time with the time on a 'real'
> stopwatch (p166, vga most of the details; 50-80% occupancy):

>   gp2: 1m16s000     'real': 1m09s000

> and a friend of mine did it on different pc's with different hardware
> setup (dx2/66 w overdrive, only the most important details; 70-100%
> occupancy):

>   gp2: 1m16s000     'real': 1m11s000

> now i wonder: are the laps equal, or is there a gap of 2s ? are laps of
> different pc's compareable ? any ideas, theories, facts ?

> addie


> > > Hi there,

> > > The other night, when I was 'driving' on the Hockenheim circuit, I
noticed that the
> > > lap-times GP2 reports are about 6% slower than the times measured
with a stopwatch:

> > > GP2 time        'real time'     difference
> > > 1:46.299        1:40.16         +6.1%
> > > 2:36.900        2:28.17         +5.9%
> > > 2:06.204        2:00.00         +5.2% (I was a little late stopping
the clock :-) )

> > > => One (1) 'real second' is about 1.06 'GP2 seconds'

> x 'real time' on Hockenheim) :-)
> [cut]

> > > Please, eMail your response cause I don't visit this group very
often.

> > > Thanks,

> > > Edwin H. Heusinkveld

> > > The Netherlands

addi

GP2 timer ticking 6% too fast ??

by addi » Fri, 22 Nov 1996 04:00:00


> IMHO the way this can be explained is as follows:
> As long as the processor occupancy is *always* at 100%, real time
> should be equal to GP2's time. Any short time over 100% will slow
> down the game and real time will get longer. This seems to be fact.
> If we now assume the opposite is also true, it would mean that
> occupancies below 100% actually SPEED UP the game.

i guess not.
i made another test: running with all details off, so i had an occ. of
about 30-50% and the gap was the same as with an occ. of 50-80%. the gap
(in % i guess) seems to be constant on my pc as long as the occ. is
below 100%. but when i run on the other pc, the gap is different to
mine. maybe it is, because its a different cpu ? different mhz ? mine is
an intel p166, the other one is a dx2/66 upgraded with a kingston 586
cpu with 133mhz.

addie

i m afraid thats what it is. well, but its fun anyway ?) you just can
not compare laps driven on different pc.


1. GP2 GP2 GP2 GP2 GP2 GP2 GP2 GP2 GP2 GP2 GP2 GP2 GP2

2. tick tick tick tick

3. tick tick ticking

4. Tick..tick...tick

5. tick tick tick

6. Tick, Tick, Tick on accel when cold, help?

7. Tick, Tick, Tick on accel when cold, help?

8. Tick-Tick-Tick my dash is gonna blow

9. Tick Tick Tick...Boom!

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