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| Internet Speed 29/09/2013 at 20:37 #49676 | |
CTCThiago
232 posts |
I have a question, When I'm in multiplayer as a client, there is a delay of 2 seconds when I do the route for a train, this delay is because of my internet speed (10m) or depends on the speed of whom is as the server? thanks in advance, CTC. Log in to reply |
| Internet Speed 30/09/2013 at 09:37 #49682 | |
kbarber
1742 posts |
Not in the least an answer to your question (sorry), but this behaviour is reminiscent of the early multiplex system used to control Clapton Junction from Hackney Downs signalbox. The system was a 'Westronic Style B', installed in 1960 when the signalling was updated as part of the electrification scheme. It needed every button press to be quite slow and deliberate and there was quite a considerable pause before the indications confirmed that the system was responding. It was also a confounded nuisance - it had a habit of failing from time to time, at which point it was the duty/on-call Station Manager's job to go to the relay room at Clapton Junction and operate the emergency panel there, under the Hackney signalman's instructions. Invariably that would happen on a Saturday evening in winter, at a time when a freezing Easterly gale was blowing the rain horizontally. Clapton Jc Relay Room was perched on an embankment overlooking the River Lea and there was nothing to stop the wind anywhere this side of Moscow; to cap it all, the panel room was barely big enough to stand beside the panel (I don't recall there being a chair and I don't think there would've been room for one) and there was a tiny electric heater whose only purpose was to protect the panel from frost! Apart from that, it was often affected by trains passing through the OHLE neutral section just outside the relay room; they would sometimes cause the Westronic to 'flash' - to drop out for about 3 seconds, during which time pandemonium would reign in Hackney box as every alarm in the place sounded and the whole right hand side of the panel turned red. This usually happened when a set of ecs to Chingford was passing so my suspicion is that the driver (invariably on a finishing turn) kept the power controller wide open while passing through the neutral section, resulting in all sorts of electrical noise being fed into the environment roundabout and driving the Westronic safety systems into fault mode. The signalmen became quite used to it and would completely ignore the racket - and the apparent complete disruption of the larger part of their control area! Years later I heard that the technicians installing the blessed thing in 1960 had christened it 'Catastronic'! Log in to reply The following user said thank you: CTCThiago |
| Internet Speed 30/09/2013 at 10:58 #49683 | |
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Jan
906 posts |
Given that setting a route only takes a few hundred bytes at most, it's probably not so much the bandwidth that matters, but the round trip time/latency of the connection.
Two million people attempt to use Birmingham's magnificent rail network every year, with just over a million of them managing to get further than Smethwick. Log in to reply The following users said thank you: CTCThiago, alvinhochun |
| Internet Speed 30/09/2013 at 12:35 #49684 | |
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CTCThiago
232 posts |
in that case, the time/latency of the server connection right?
Last edited: 30/09/2013 at 12:36 by CTCThiago Log in to reply |
| Internet Speed 30/09/2013 at 14:01 #49686 | |
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Finger
220 posts |
That can't be said that way - there is no latency of the client's internet connection, or of the server's. The thing that matters is a latency of the connection of the client to the server, which depends on both parties and the network between. Eg. if there is a wifi in the way with low signal level and noticeable packet loss, that would pose a problem regardless of whose wifi it is. Or a congested link etc. Also it should be said, that the design of the server's protocol matters. For example, it may be that when SimSig sets a route, it does it in several steps, that all need their round trip. Also, it could be that the connections to other clients matter (although I don't believe this is the case). Log in to reply The following user said thank you: CTCThiago |
| Internet Speed 01/10/2013 at 14:41 #49703 | |
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clive
2789 posts |
There are various reasons why route setting has to be done on the server. Therefore if you request a route on the client, messages have to be sent to the server, processed, and replied to. The messages are small, but the machines at each end will take time to transmit and receive them. There's no interaction with other clients, though having lots of clients can slow the server down because it's got to update them all. Log in to reply The following user said thank you: CTCThiago |
| Internet Speed 01/10/2013 at 14:47 #49704 | |
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CTCThiago
232 posts |
Thank you clive, you clarify this for me... cheers, CTC. Log in to reply |
| Internet Speed 04/10/2013 at 23:47 #49792 | |
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UKTrainMan
1803 posts |
CTCThiago, it may surprise yourself and indeed possibly others too that this question has > already been covered on the Wiki/Manual <  :woohoo: B)
Any views and / or opinions expressed by myself are from me personally and do not represent those of any company I either work for or am a consultant for. Log in to reply The following user said thank you: CTCThiago |
| Internet Speed 05/10/2013 at 01:01 #49795 | |
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CTCThiago
232 posts |
Thank you Tim, I didn't see this section!
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