6 ms·

The CDN thing is an issue too. Using a local DNS resolver instead of Google DNS helped my PS4 speeds. The other "trick" if a download is getting slow is to ru

The CDN thing is an issue too. Using a local DNS resolver instead of Google DNS helped my PS4 speeds. The other "trick" if a download is getting slow is to run the in built "network test". This seems to reset all the windows back even if other things are running.

jsnell 9y ago
> The other "trick" if a download is getting slow is to run the in built "network test". This seems to reset all the windows back even if other things are running. I did not see that in my testing. The built in speedtest runs with a large receive window, but the store downloads are not affected. (You can see an example in the last graph; there's a speedtest early on that has a receive window 100x larger than the PSN downloads that are crawling along). It's probably just a placebo.
- matwood 9y ago
  > It's probably just a placebo. Possibly, but I think the OP above was onto something about it 'resetting' the windows. I just tested downloading a large game while I had another game running. The PS4 showed it was going to take 6 hours. I closed the other game I had running, and it still showed 6 hours. I ran the speed test, and now it shows it's going to take 50 minutes. BTW, thanks for running these tests as I have some stuff to try instead of waiting hours for a game to download :)
  - mlonkibjuyhv 9y ago
    But how long did it end up actually taking?
  - jsnell 9y ago
    My experience is that the finish time prediction isn't reliable. It's based average speed over the whole connection, not the current speed. So the projection will lag behind if the speed changes dramatically. Maybe the speedtest somehow resets the projection? The measurement really needs to be done on the wire.
lathiat 9y ago
> Using a local DNS resolver instead of Google DNS helped my PS4 speeds. that's not a surprise, as when using Google DNS the CDN has much less information about you to try and route you to a good choice of CDN endpoint. will be variable based on where the google DNS endpoint is and you are [plus the connectivity of a given CDN to both of those places] More information about that here including "EDNS Client Submit" a solution they deployed to send a partial client IP to the server but only for specific CDNs they have set it up with: https://developers.google.com/speed/public-dns/faq https://developers.google.com/speed/public-dns/faq "I've read claims that Google Public DNS can slow down certain multimedia applications or websites. Are these true?"

jsnell 9y ago

> The other "trick" if a download is getting slow is to run the in built "network test". This seems to reset all the windows back even if other things are running. I did not see that in my testing. The built in speedtest runs with a large receive window, but the store downloads are not affected. (You can see an example in the last graph; there's a speedtest early on that has a receive window 100x larger than the PSN downloads that are crawling along). It's probably just a placebo.

matwood 9y ago
> It's probably just a placebo. Possibly, but I think the OP above was onto something about it 'resetting' the windows. I just tested downloading a large game while I had another game running. The PS4 showed it was going to take 6 hours. I closed the other game I had running, and it still showed 6 hours. I ran the speed test, and now it shows it's going to take 50 minutes. BTW, thanks for running these tests as I have some stuff to try instead of waiting hours for a game to download :)
- mlonkibjuyhv 9y ago
  But how long did it end up actually taking?
- jsnell 9y ago
  My experience is that the finish time prediction isn't reliable. It's based average speed over the whole connection, not the current speed. So the projection will lag behind if the speed changes dramatically. Maybe the speedtest somehow resets the projection? The measurement really needs to be done on the wire.

lathiat 9y ago

> Using a local DNS resolver instead of Google DNS helped my PS4 speeds. that's not a surprise, as when using Google DNS the CDN has much less information about you to try and route you to a good choice of CDN endpoint. will be variable based on where the google DNS endpoint is and you are [plus the connectivity of a given CDN to both of those places] More information about that here including "EDNS Client Submit" a solution they deployed to send a partial client IP to the server but only for specific CDNs they have set it up with: https://developers.google.com/speed/public-dns/faq https://developers.google.com/speed/public-dns/faq "I've read claims that Google Public DNS can slow down certain multimedia applications or websites. Are these true?"