Tuning for a high speed connection

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Tuning for a high speed connection

Postby kenr » Wed Nov 20, 2024 6:47 am

I am on a Gb fibre connection, but can only get ~34Mbs (300Mbps) on a connection to Astraweb. I have changed the server connections between 8 and 50 with no real difference.
NB is on a SSD.
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Re: Tuning for a high speed connection

Postby Quade » Fri Nov 22, 2024 3:18 pm

I regularly get 900-950Mbps to Usenetserver with 16 threads. My Ethernet is only 1 Gig to the firewall so, I'm getting as much speed as my internal network supports. On Usenetserver, the older the files the slower the download. I suspect because the old chunks aren't cached so they're slower to retrieve.

My suggestion would be to try usenetserver and see what speed you get. If the speeds are high then you know it's a server issue. If the speeds are still slow it could be something else.

I assume you're running cabled Ethernet and it's a pretty straight shot to your router/firewall.

Another thought. If you're using a security package that isn't from Microsoft, maybe make it ignore the connections Newsbin makes to the server.
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Re: Tuning for a high speed connection

Postby kenr » Fri Nov 22, 2024 6:09 pm

Ethernet at GB speed between router and pc, running on Linux so no crapware running, the stuff being downloaded is new so. Same servers on Sabnzbd gets 100Mb down.
Maybe it is a wine issue but not seen it before.

Will play around a bit with wine or install NB on win11 to test
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Re: Tuning for a high speed connection

Postby Quade » Tue Nov 26, 2024 5:39 pm

My testing under Wine shows similar performance to Windows.

The larger the files, the higher the download speed. Small files never download particularly fast because the overhead is higher.
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Re: Tuning for a high speed connection

Postby kenr » Wed Nov 27, 2024 6:22 am

It was files in region of 100-160Mb, the smaller ones I usually download take seconds anyway.
I don't download a lot using NB so will just live with it. I have tuned the rx buffer anyway to improve the network.
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Re: Tuning for a high speed connection

Postby Quade » Wed Nov 27, 2024 2:22 pm

I have tuned the rx buffer anyway to improve the network.


In my recent testing, using the default RX Buffer gives the best download performance. Windows seems to auto-tune it for best performance. I'd recommend not trying to set the RX Buffer size anymore.
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