Optimize the Multiplayer Loading

[SkeL]

Waiting more than 10minutes for my friend to load the game in the lobby is ♥♥♥♥♥♥♥ boring.

[Prepaid Pudding]

I think that is an issue on your friends side, have played with about a dozen different people, never more than 1 or 2 minutes to load in.

[Ge4ry223]

yeah i can confirm the loading is like 1 min or less

[SkeL]

We both have more than 10mb/s download and 5mb/s upload. I don't believe that's the real problem.

[Cario]

Originally posted by SkeL:

We both have more than 10mb/s download and 5mb/s upload. I don't believe that's the real problem.

what make u think download and upload have do with it? it your HDD or SSD

[SkeL]

Originally posted by XIII Cario:

what make u think download and upload have do with it? it your HDD or SSD

Maybe because we are transfering files to each other and we are not in LAN? -.-
We both have 1TB M.2 NVMEs 7000/5000 mb/s

[Mosby (J)]

Are you using a large map? That seems to be a lot slower for me.

[SkeL]

Originally posted by Mosby (J):

Are you using a large map? That seems to be a lot slower for me.

Yep its a large map, with 3 AI and a total of 2 Players.

[Merton]

It's a guess but...

The issue is most likely cause by high latency between the host and the player. The way the game sends the saved file is probably by chunk, and the host is waiting for the last chunk to be received before sending the next one. Those chunk are most likely very small, and therefore most of the time is just waiting for the message to go back and forth.

Tested: Long loading time for my friend who is very far (10-15 minutes) while about 1 minutes for my friend that is in the same city. Note that the internet speed are all 100mbps, and that the usage is <0.2mbps on the far player.

Developers just have to either send the chunk in parallel (best solution but hard to implement), or sends much larger chunks (good enough solution but easier to implement).

[Kapdjim]

yes that's the problem with the multiplyer, we are not playing only because of this, uploadind massive savegame each time is frustrating

[Jambie Lionheart]

Originally posted by SkeL:

We both have more than 10mb/s download and 5mb/s upload. I don't believe that's the real problem.

No that's what you're provider advertised you'd get. You'll be lucky if you even get half of that. Even IF you do, there's actually a lot of factors that go into final upload and download speed.

If you're using a wi-fi connection then your internet speeds can vary wildly based on just about any factor in your home. Electrical appliance interferance is one (though rare these days) but heat generated by the appliances can disrupt the signal and so can walls.

And then you've got plain ol' weather patterns. A good rain storm can royally F' up a connection for everyone in the region. Something as insignificant and cloud fluff cover can affect this and where you live in relation to each other as well as the route data packets take on between the both of you, while you play the game.
You should try a ping test to see if one of you is having a problem connecting to the games server.

[SkeL]

Originally posted by CtMurphy:

Originally posted by SkeL:

We both have more than 10mb/s download and 5mb/s upload. I don't believe that's the real problem.

No that's what you're provider advertised you'd get. You'll be lucky if you even get half of that. Even IF you do, there's actually a lot of factors that go into final upload and download speed.

If you're using a wi-fi connection then your internet speeds can vary wildly based on just about any factor in your home. Electrical appliance interferance is one (though rare these days) but heat generated by the appliances can disrupt the signal and so can walls.

And then you've got plain ol' weather patterns. A good rain storm can royally F' up a connection for everyone in the region. Something as insignificant and cloud fluff cover can affect this and where you live in relation to each other as well as the route data packets take on between the both of you, while you play the game.
You should try a ping test to see if one of you is having a problem connecting to the games server.

We both currently have download speeds of over 250 Mbps, and yes, that's the accurate figure. On average, my Steam download speed hovers around that range, occasionally peaking at 280 Mbps. We're not using Wi-Fi connections, we're connected via cable. It's unlikely that weather conditions could have such a significant impact on cable internet performance.

We're still experiencing waiting times of more than 5 minutes when trying to load a savegame. Two other friends who also play the game are facing the same problem. Its usually a issue with savegames that have accumulated more than ~24 hours of playtime.

[Raptor]

one savegame file can be 150 megabytes or larger wich will take more time.
maybe the devs can take at look at savegame size reduction/optimization/compression.
and keep in mind that there's a difference between megabytes and megabits

[Kapdjim]

we are on ADSL, and the upload is limited; we need to wait 30-40min everytime; so the 82mo savefile get uploaded to everyone