Throttling

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Throttling

Postby mkrubsack » Mon May 03, 2021 5:55 pm

I have Xfinity Internet, and with NewsbinPro 6.82, and now 6.90B7, I "used" to get download speed throughput of around 600 Mbps. As of the last few weeks, it's dropped down to just above 200 Mbps. By contrast, using SABnzbd I still get 600Mbps download speed. Leads me to believe Xfinity is throttling nntp traffic.
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Re: Throttling

Postby Quade » Mon May 03, 2021 9:52 pm

You're a couple betas back and there was a significant performance increase in B8 or 9. I'd suggest updating first and see what happens. Sab uses NNTP as well.
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Re: Throttling

Postby mkrubsack » Wed May 05, 2021 7:33 pm

Edit: Found the link in the forum. Thanks!
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Re: Throttling

Postby mkrubsack » Thu May 06, 2021 4:49 pm

Made no difference. A Newsbin D/L starts out in the high 400's, act like it will climb upwards, then a few seconds later drops to upper 100's.
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Re: Throttling

Postby Quade » Fri May 07, 2021 10:01 am

So the question is why aren't you getting full bandwidth.

1 - Could be the news server
2 - Could be your ISP.
3 - Could be Newsbin,
4 - Could be your PC.

- What news server are you using?
- When you look down at the status bar where it says "Cache" what numbers are showing? For example I'm seeing "400/400".
- What kind of drives are you downloading to?
- In the performance options, do you have "Pause Download During Unrar" checked?
- How old are the files you're downloading?
- What security software are you using?


I'm sitting here getting a solid 750 Mbps to Usenetserver using Comcast. Using 10 connections. So I know it's possible to get full speed with Newsbin.
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Re: Throttling

Postby mkrubsack » Fri May 07, 2021 5:38 pm

SABnzbd works at full speed w/o issue. Gets on the average 80MB/s or 640Mbps.

Using NewsDemon and USENET.farm. No difference between the two. Average with Newsbin of about 15MB/s or 125Mbps.

Using a quad-core i7 with 32GB RAM.

I still believe the issue lies with Xfinity, probably my local node. Newbin worked fine with full speed for months, then about a month ago, the slowdown began.
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Re: Throttling

Postby Quade » Fri May 07, 2021 11:18 pm

I've seen security software slow downloads too.

Assuming Sab is using usenet and not torrents, Newsbin should be as fast or faster. It might be the ISP throttling but if that's the case, I'd expect Sab to get throttled too. They're both setup to use SSL?
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Re: Throttling

Postby mkrubsack » Sun May 09, 2021 7:35 pm

Yes, both use SSL port 563. I just now tried SSL port 80, no difference. I don't have any security software other than Windows Defender (using Win 10 Pro ver 20H2).

Task Manager shows Windows Defender Antimalware Service Executable jacking up the CPU by 45-50% for total CPU with Newsbin of 83-95%. Could be Windows Defender, but I can't see a way to whitelist a program. CPU is cool, about 60C under load, so no throttling by CPU.
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Re: Throttling

Postby Quade » Mon May 10, 2021 8:27 am

Defender and MS's tools are the only security software that doesn't seem to impact performance. If that's all you're using it shouldn't be a factor.

Are you using a NAS or external storage for any of this?
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