rec.autos.simulators

by **Ian Parke** » Tue, 19 Oct 1999 04:00:00

I don't see what the big deal is about having a ping less than 100, I had an
online race a few days ago where the host was in Australia, I was in UK and
two others joined from USA.
There was no warping and the connections were perfectly stable with pings
around 500 ms !!!

--
Ian Parker

UKGPL League
http://www.racesimcentral.net/
http://www.racesimcentral.net/
--

by **Joe Ree** » Tue, 19 Oct 1999 04:00:00

I'm beginning to realize that lost packets are more important to obtaining
a warp free race than a low ping. Like Ian, I've been in races with a
fairly
high ping (200-300) but little or no lost packets and the others cars were
steady as a rock. On the other hand I've been in races where my ping
was low, but lost packets were sporadically jumping up to 10 or 20 at
a time and each time the lost packets spiked, the other cars disappeared.

I have to believe that the same inconsistancies in packet loss occur with
GPL Multiplayer also, but it's effect seems to be less severe, so hopefully
Papy will be able to optimize the prediction code a little more to smooth
out the warps when lost packets occur in N3.

Later,
Joe
Bluesdude on N3 Multiplayer

> I don't see what the big deal is about having a ping less than 100, I had
an
> online race a few days ago where the host was in Australia, I was in UK
and
> two others joined from USA.
> There was no warping and the connections were perfectly stable with pings
> around 500 ms !!!

> --
> Ian Parker

> UKGPL League
> http://members.xoom.com/ukgpl/index.html
> http://www.ukgpl.com
> --

> > I finally found a under 100 ping server to run Talledega on. It was the
> > most incredible racing I have ever had.
> ><snipped>
> > I can't wait to get my dsl line on monday so I can do some more under
100
> > ping racing.
> > I LOVE IT.
> > Mike

by **Ulterior Mode** » Tue, 19 Oct 1999 04:00:00

Joe, Got a question for ya ! How do you know how many packets are being dropped
whilst racing ??

> I'm beginning to realize that lost packets are more important to obtaining
> a warp free race than a low ping. Like Ian, I've been in races with a
> fairly
> high ping (200-300) but little or no lost packets and the others cars were
> steady as a rock. On the other hand I've been in races where my ping
> was low, but lost packets were sporadically jumping up to 10 or 20 at
> a time and each time the lost packets spiked, the other cars disappeared.

> I have to believe that the same inconsistancies in packet loss occur with
> GPL Multiplayer also, but it's effect seems to be less severe, so hopefully
> Papy will be able to optimize the prediction code a little more to smooth
> out the warps when lost packets occur in N3.

> Later,
> Joe
> Bluesdude on N3 Multiplayer

> > I don't see what the big deal is about having a ping less than 100, I had
> an
> > online race a few days ago where the host was in Australia, I was in UK
> and
> > two others joined from USA.
> > There was no warping and the connections were perfectly stable with pings
> > around 500 ms !!!

> > --
> > Ian Parker

> > UKGPL League
> > http://members.xoom.com/ukgpl/index.html
> > http://www.ukgpl.com
> > --

> > > I finally found a under 100 ping server to run Talledega on. It was the
> > > most incredible racing I have ever had.
> > ><snipped>
> > > I can't wait to get my dsl line on monday so I can do some more under
> 100
> > > ping racing.
> > > I LOVE IT.
> > > Mike

by **Ron Ayto** » Wed, 20 Oct 1999 04:00:00

I rest my case.. <G>
I have lost count of the times i have tried to get the truth about
latency issues across in this news group, in relation to N3 or GPL, but
still there is always some bozo that reckons we can't run N3 or GPL
on-line with ping times over 100ms, or that analogue modems shouldn't
be used for on-line racing etc etc..
GPL is more tolerant of higher latency figures than N3, where pings of
up to nearly 600ms can be perfect in F1 with the right conditions, but
N3 seems to start playing up once the clients pings approach 400ms..
I have found in N3 that latency figures up to 380ms have provided me
with totally warp free, solid racing in N3, and that's on a anologue
modem, capped at 26,400 baud, from Australia to the USA....
Hell, i have even hosted warp free races on my analogue modem from
Australia, with clients based in America...

The truth is out there, if we but open our eyes. !!!

Cheers,
Ron

> I'm beginning to realize that lost packets are more important to
obtaining
> a warp free race than a low ping. Like Ian, I've been in races with
a
> fairly
> high ping (200-300) but little or no lost packets and the others cars
were
> steady as a rock. On the other hand I've been in races where my ping
> was low, but lost packets were sporadically jumping up to 10 or 20 at
> a time and each time the lost packets spiked, the other cars
disappeared.

> I have to believe that the same inconsistancies in packet loss occur
with
> GPL Multiplayer also, but it's effect seems to be less severe, so
hopefully
> Papy will be able to optimize the prediction code a little more to
smooth
> out the warps when lost packets occur in N3.

> Later,
> Joe
> Bluesdude on N3 Multiplayer

> > I don't see what the big deal is about having a ping less than 100,
I had
> an
> > online race a few days ago where the host was in Australia, I was
in UK
> and
> > two others joined from USA.
> > There was no warping and the connections were perfectly stable with
pings
> > around 500 ms !!!

> > --
> > Ian Parker

> > UKGPL League
> > http://members.xoom.com/ukgpl/index.html
> > http://www.ukgpl.com
> > --

> > > I finally found a under 100 ping server to run Talledega on. It
was the
> > > most incredible racing I have ever had.
> > ><snipped>
> > > I can't wait to get my dsl line on monday so I can do some more
under
> 100
> > > ping racing.
> > > I LOVE IT.
> > > Mike

by **Jeff Vince** » Wed, 20 Oct 1999 04:00:00

On Mon, 18 Oct 1999 20:56:31 -0400, Ulterior Modem

>Joe, Got a question for ya ! How do you know how many packets are being dropped
>whilst racing ??

If you're running GPL 1.1 or later, Alt-L gives you Latency and
"Quality". "Quality" is the number of packets delivered divided by
the number of packets expected. A reading of 1.0 is the goal, below
0.9 starts getting iffy.

Don't know about N3...

"But in a way, fear is a big part of racing, because if there was
nothing to be frightened of, and no limit, any fool could get into
a motor car and racing would not exist as a sport." -- Jim Clark

by **Don Hanco** » Wed, 20 Oct 1999 04:00:00

My guess is it's because N3 is trying to do "prediction" for
up to 43 cars instead of 18 or less. If the field is limited to fewer
cars overall (which to ME degrades the experience) N3 would probably
be more tolerant of dropped packets.

Gunner

by **Ulterior Mode** » Sun, 24 Oct 1999 04:00:00

It has been my experience that latency has much less to do with the quality
of olr than the quantity and frequency of dropped packets.
BTW do monitor dropped packets and general conn info hit ctrl Y

> >GPL is more tolerant of higher latency figures than N3, where pings of
> >up to nearly 600ms can be perfect in F1 with the right conditions, but
> >N3 seems to start playing up once the clients pings approach 400ms..
> >I have found in N3 that latency figures up to 380ms have provided me
> >with totally warp free, solid racing in N3, and that's on a anologue
> >modem, capped at 26,400 baud, from Australia to the USA....
> >Hell, i have even hosted warp free races on my analogue modem from
> >Australia, with clients based in America...

> My guess is it's because N3 is trying to do "prediction" for
> up to 43 cars instead of 18 or less. If the field is limited to fewer
> cars overall (which to ME degrades the experience) N3 would probably
> be more tolerant of dropped packets.

> Gunner

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