Slow download speeds only when using sabnzbd

[quandasar]

Hi
i am using sabnzb on a
- windows 7 64 bit 4gb ram, quad 6600 raptor hd.
- astraweb is the usenet provider
- have tried both with ssl and without and astraweb us and eu servers
- tried this http://wiki.sabnzbd.org/highspeed-downloading
- i only get 2-300 KB/s when using sabnzb
- i have a 100 MB fiber connection
- when i installed alt.binz on the same computer as sabnzb is on i get the full 10 MB/s speeds

any ideas ?

[Speedyrulz]

I actually have the exact same problem. I just made a nearly identical post but just deleted it when I saw this. I normally get 1MB/sec on my cable connection with newsleecher. I just installed sabnzbd and it is only giving me 100KB/sec. I am using powerusenet with the same settings I'm using on newsleecher.

[exussum]

I actually have the exact same problem. I just made a nearly identical post but just deleted it when I saw this. I normally get 1MB/sec on my cable connection with newsleecher. I just installed sabnzbd and it is only giving me 100KB/sec. I am using powerusenet with the same settings I'm using on newsleecher.

Bits and Bytes ?

times the 100 by 8.

The original problem are you using SSL ? your ISP may be slowing down other traffic. Theres a post here about Virgin Media only being usable at speed on port 443

[Speedyrulz]

Both of mine are in Bytes. I have a 10Mbit download speed connection so I usually get just over 1 Megabyte per second with newsleecher, but with sabnzbd I get 100 kilobytes per second. It's definitely going way slower than it should.

[shypike]

Try setting a article cache in Config->General (say 250M).
Make sure you have enough connections, but don't overdo it.
10 is usually a good value, 50 definitely is not. It does depend a bit on the Usenet provider.
When you use the same server and port as for another Usenet program, traffic shaping cannot be a factor.

[PiERiT]

I'm having a similar issue. 100Mb connection, but most of the time I'll get half of that. Very rarely will I get anything close to it. It seems completely random. alt.binz maxes my speed just fine, downloading the same things with the same settings.

Article Cache isn't helping. I've tried several different values. Any other ideas?

[shypike]

Bits/sec versus Bytes/sec?
You didn't set a speedlimit?

[PiERiT]

I get ~12 megabytes per second in alt.binz. With sab I usually get half of that. Sometimes it creeps up to 10 or 11, but not for long. I haven't set a limit.

[shypike]

Weird.
I can get at least 8 MByes/sec on a netbook running Linux
and about 11 MBytes/sec on a mediocre Windows PC and an older miniMac.
I do have an excellent ISP, possibly that matters too.
In that case Alt.binz would be something cleverer than SABnzbd with the connections.
I'm afraid I cannot really answer the question.

[enjoyaol]

Hello all,

I have the same issue on a synology ds1511+. It's known that networking python in python is slower than C++. For example, switching to nzbget makes the 100mbs connection to it's full usage (8MB/s) while on sabnzbd the connection won't be faster than 5MB/s.
Is there some project somewhere to replace the downloader.py with a C++ one ? Is that possible ?

[shypike]

It's always possible.
It's more the question if anyone wants to invest the huge amount of time that's needed.
Nobody in the current team will do that.