SABnzbd Forums

I've searched and didn't see any threads for my problem, I've seen (http://wiki.sabnzbd.org/highspeed-downloading) the stating saying if your blessed with a 50 Mbps HSI connection to check
article cache (I've set it at 70M)
python-yenc is installed
and CPU (2 cpu's with HT) are not maxed out

I've always had no problems when I had COX HSI (50/5) but since I've upgraded to 150/20 Mbps connection.

I seem to only be able to download at average of 11.3 MB/s

I've checked the NIC(s) in the server I run SAB on, it's running at 1GB (1000)

My Modem is a Cisco DPC301, router: ASUS RN66U, Switch is unmanaged GB 24 port ($200 Dlink)

Server is Dell PE 2850 Raid 0, 2 2.8GHZ Xeon CPU, w/HT - 4GB RAM

It basically only runs SAB and some other small things for my house, I've checked the CPUs when in the middle of a DL - One is high but not MAXED

I've ran a speedtest via wget
here's my results :
wget cachefly.cachefly.net/100mb.test
--2013-02-08 10:57:04-- http://cachefly.cachefly.net/100mb.test
Resolving cachefly.cachefly.net (cachefly.cachefly.net)... 205.234.175.175
Connecting to cachefly.cachefly.net (cachefly.cachefly.net)|205.234.175.175|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 104857600 (100M) [application/octet-stream]
Saving to: `100mb.test'

100%[======================================>] 104,857,600 22.9M/s in 4.6s

AS you can see downloading a file without SAB in the mix, I am getting 183.2 Mbps

I've yet to plug the server directly INTO the Cisco DPC3010 Modem to see if it helps I doubt it will/However I tested with a laptop - I plugged it directly into my Modem and install newsleecher and downloaded a NZB (again got around 20MB/s) - I then plugged into my router and got 15-17MB/s on another DL - I have yet to move to the switch (as it's plugged into the router as well)_

I removed my firewall, so it goes MODEM -> Wireless Router -> 24-port Gig switch -> which the server running SAB is plugged into.

I was going to rip everything apart and start physically troubleshooting until I ran that wget speed test and it appears that the server is getting full 150+Mbps.

So before I go ripping all my hardware apart I was just wondering if anyone has had this issue or has any ideas I can try?


thanks in advance!

I think 11.x MBytes/sec is about the maximum you can get from SABnzbd on average hardware.
SABnzbd is also not capable of utilizing multiple cores.
Also, don't forget the Usenet provider, is it capable to go beyond 100 Mbit/sec?
Have you tried another Usenet client?

yes another client, works on a different machine and I get from 15-20MB/s
SO really sab can't get much past 11.3-12?

Another client on the same machine (or SABnzbd on the other).
Now you still don't know what you are comparing.

I tried another client on another's machine - the machine sab runs on is a headless server