rec.autos.simulators

Latency?

Harry Mailah

Latency?

by Harry Mailah » Wed, 01 Dec 1999 04:00:00

Could someone please explain what latency is all about, in multiplayer
racing.  Sometime its too high or too low or whatever, is there someway to
correct one's latency, and please don't tell me to be on time.
Thanks

--
Harry Mailahn

Ron Ayto

Latency?

by Ron Ayto » Wed, 01 Dec 1999 04:00:00


Hi,
Latency is a measure of the time in milliseconds for the time taken for
your packets of data to get to the hosting computer and back to your
computer.
The ammount of time it takes for the round trip, is called the latency.
Think of it as a measured echo from you to the host and back.
Latencys are effected by internet conditions, how many routers your
packets have to go through to get to the host and your connection to
the net.
Lower latencys are generally better for all on-line play, but latencys
of up to .600ms are perfectly playable in F1 GPL, as long as you have
good quality, eg. no lost packets or bad routers on the way.
In GPL F2, latencys of up to 650ms can provide perfect play and the F3
cars in GPL don't mind latency figures of .700 or even higher..
In N3, latencys are a bit more important, because of the bump & bash
style of play, so latencys of over 400ms should be avoided.
I have had some good, almost warp free racing in N3 when my latencys
approach the 400ms mark, but the racing will be better in N3 with
latencys below 400ms.
Don't believe the rubbish you see some people sprouting about with
latencys, who keep saying that you have to have 100 to 300 ms latencys
for good on-line play, as it is simply not true..

Cheers,
Ron

Michael Barlo

Latency?

by Michael Barlo » Wed, 01 Dec 1999 04:00:00



> > Could someone please explain what latency is all about, in
> multiplayer
> > racing.  Sometime its too high or too low or whatever, is there
> someway to
> > correct one's latency, and please don't tell me to be on time.
> > Thanks
> > --
> > Harry Mailahn

> Hi,
> Latency is a measure of the time in milliseconds for the time taken for
> your packets of data to get to the hosting computer and back to your
> computer.
> The ammount of time it takes for the round trip, is called the latency.
> Think of it as a measured echo from you to the host and back.
> Latencys are effected by internet conditions, how many routers your
> packets have to go through to get to the host and your connection to
> the net.
> Lower latencys are generally better for all on-line play, but latencys
> of up to .600ms are perfectly playable in F1 GPL, as long as you have

        here's a question.. a millisecond is... a millionth of a second? a
tenth of a second? ...?...?

        If a millisecond was one millionth of a second, then latencies of
10,000 miliseconds would still be very playable as that would be only
1/100th of a second. So, just what is one millisecond of a second?
--
=========================================
Mike Barlow of Barlow Racing?
=========================================
http://members.xoom.com/BarlowRacing/

Racing online with the help of......

Race Communications Association
Holodyne Engineering
Mystic Music
(have Your !!Name/Address!! placed here)

Magnus

Latency?

by Magnus » Wed, 01 Dec 1999 04:00:00




>> > Could someone please explain what latency is all about, in
>> multiplayer
>> > racing.  Sometime its too high or too low or whatever, is there
>> someway to
>> > correct one's latency, and please don't tell me to be on time.
>> > Thanks
>> > --
>> > Harry Mailahn

>> Hi,
>> Latency is a measure of the time in milliseconds for the time taken for
>> your packets of data to get to the hosting computer and back to your
>> computer.
>> The ammount of time it takes for the round trip, is called the latency.
>> Think of it as a measured echo from you to the host and back.
>> Latencys are effected by internet conditions, how many routers your
>> packets have to go through to get to the host and your connection to
>> the net.
>> Lower latencys are generally better for all on-line play, but latencys
>> of up to .600ms are perfectly playable in F1 GPL, as long as you have

>    here's a question.. a millisecond is... a millionth of a second? a
>tenth of a second? ...?...?

>    If a millisecond was one millionth of a second, then latencies of
>10,000 miliseconds would still be very playable as that would be only
>1/100th of a second. So, just what is one millisecond of a second?

A millisecond is a thousandth of a second, just like one thousand millimeter
is one meter. So 1 millisecond is 0.001 second and 10000 milliseconds is 10
seconds.

/Magnus

Kenny L

Latency?

by Kenny L » Wed, 01 Dec 1999 04:00:00

1000 milliseconds = 1 second

--
Kenny L.
#14 Generic Chevy
PRC Member
Wall Scrapers Racing Team



> > > Could someone please explain what latency is all about, in
> > multiplayer
> > > racing.  Sometime its too high or too low or whatever, is there
> > someway to
> > > correct one's latency, and please don't tell me to be on time.
> > > Thanks
> > > --
> > > Harry Mailahn

> > Hi,
> > Latency is a measure of the time in milliseconds for the time taken for
> > your packets of data to get to the hosting computer and back to your
> > computer.
> > The ammount of time it takes for the round trip, is called the latency.
> > Think of it as a measured echo from you to the host and back.
> > Latencys are effected by internet conditions, how many routers your
> > packets have to go through to get to the host and your connection to
> > the net.
> > Lower latencys are generally better for all on-line play, but latencys
> > of up to .600ms are perfectly playable in F1 GPL, as long as you have

> here's a question.. a millisecond is... a millionth of a second? a
> tenth of a second? ...?...?

> If a millisecond was one millionth of a second, then latencies of
> 10,000 miliseconds would still be very playable as that would be only
> 1/100th of a second. So, just what is one millisecond of a second?
> --
> =========================================
> Mike Barlow of Barlow Racing?
> =========================================
> http://members.xoom.com/BarlowRacing/

> Racing online with the help of......

> Race Communications Association
> Holodyne Engineering
> Mystic Music
> (have Your !!Name/Address!! placed here)

kcaldwel

Latency?

by kcaldwel » Wed, 01 Dec 1999 04:00:00

A millisecond is one thousndth of a second, or 0.001 seconds. 300 msec
is 0.300 secnds.

Kevin Caldwell


>         here's a question.. a millisecond is... a millionth of a second? a
> tenth of a second? ...?...?

>         If a millisecond was one millionth of a second, then latencies of
> 10,000 miliseconds would still be very playable as that would be only
> 1/100th of a second. So, just what is one millisecond of a second?
> --
> =========================================
> Mike Barlow of Barlow Racing?
> =========================================
> http://members.xoom.com/BarlowRacing/

> Racing online with the help of......

> Race Communications Association
> Holodyne Engineering
> Mystic Music
> (have Your !!Name/Address!! placed here)

Mark Seer

Latency?

by Mark Seer » Wed, 01 Dec 1999 04:00:00

Harry.
Latency is the lag time for data packets moving between the client and
server. It is measured in fractions of a second.  A latency of 0.5 means 1/2
sec for instance. The higher the physical distance or number of hops between
the server and client, the higher the latency is likely to be.

Generally speaking, higher latency is undesirable as it takes longer for
data to refresh. However, it is not uncommon for some geographical areas,
(notablyAustralia),  to endure lat of .6 or higher as matter of course. A
more pressing issue than latency is packet loss. This is the process of data
packets not actually reaching the destination for whatever reason. A high
latency but stable connection will always win over a low lat one going
through a bad route.

BTW. We in ***space have a holy grail or pot of gold at the end of the
rainbow. It is called zero latency. This is an impossibility except on a
LAN.

MS

Mark Seer

Latency?

by Mark Seer » Wed, 01 Dec 1999 04:00:00

A thousandth Mike.

Latency of 0.999 = 999/1000 of a second

MS

Tom Phillip

Latency?

by Tom Phillip » Wed, 01 Dec 1999 04:00:00

The SI system says that 'milli' or prefix m means 10^(-3), ie 1/1000th
of a second.

1000ms = 1s

1 micro second is one millionth of a second.

Michael Barlo

Latency?

by Michael Barlo » Wed, 01 Dec 1999 04:00:00


> The SI system says that 'milli' or prefix m means 10^(-3), ie 1/1000th
> of a second.

> 1000ms = 1s

> 1 micro second is one millionth of a second.

        That's right. I knew there was a one millionth of a second someplace
but couldn't remember where.

Mike
--
=========================================
Mike Barlow of Barlow Racing?
=========================================
http://members.xoom.com/BarlowRacing/

Racing online with the help of......

Race Communications Association
Holodyne Engineering
Mystic Music
(have Your !!Name/Address!! placed here)

Harry Mailah

Latency?

by Harry Mailah » Wed, 01 Dec 1999 04:00:00

Thanks Guys, you all have been a big help, I am still a little in the blind
as a newbie, but getting more informed daily. Thanks again


Hena Hakkane

Latency?

by Hena Hakkane » Thu, 02 Dec 1999 04:00:00


> here's a question.. a millisecond is... a millionth of a second? a
>tenth of a second? ...?...?

> If a millisecond was one millionth of a second, then latencies of
>10,000 miliseconds would still be very playable as that would be only
>1/100th of a second. So, just what is one millisecond of a second?

You Americans really need to switch to metric system! :)

No offence,
Hena

Hena Hakkane

Latency?

by Hena Hakkane » Thu, 02 Dec 1999 04:00:00



>> The SI system says that 'milli' or prefix m means 10^(-3), ie 1/1000th
>> of a second.

>> 1000ms = 1s

>> 1 micro second is one millionth of a second.

> That's right. I knew there was a one millionth of a second someplace
>but couldn't remember where.

There's also a one billionth of a second, it's called nanosecond. I run into
this constantly in e.g. memory access speeds.

Hena


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