Fluctuating D'load speeds????

[djpal1]

Hi there,

Just recently I have noticed I'm getting fluctuating d'load speeds of anything from 500kb/s to 3MB/s (at it's maximum) and was just wondering if there was any reason for this???
I've a broadband speed test, and all is ok with that. (30-35mb d'load).

I've got version 0.7.16 of SABNZBD
Windows XP
BT Inifinity
ssl-eu.astraweb.com
On Port 563
SABNZBD Port 8080.

Anything wrong or anything else I can try to get a more constant d'load.

Cheers

Liss

[Reidy99]

Hey all,

I'm having the exact same problem.

Upgraded to the 0.7.16, haven't changed any connection settings, but now getting a download speed that varies from 5MB/s to 5kb/s

Same as djpal1 I have broadband, I'm on fibre and get 100MB/s down.

This is killing me as I have just bought a NAS for movie and tv storage and now it's taking a day just to get one movie down.....

Any help appreciated.

Cheers

Reidy

[sander]

Fluctuating download speeds in SAB can be caused by:

- low spec CPU: as soon as SAB begins unrar/unpar, the download speed itself drops
- wireless LAN connection
- fluctuating Internet speed


HTH

[brando56894]

I've noticed this too. I just bought a Thecus N4520 NAS with an Intel Dual Core Atom and 2 GB of RAM (4x3TB in RAID 5) and I'm currently getting around 500 KB/sec and as high as 3 MB/sec, yet whenever I would run SAB on my desktop (Core i7 quad-core @ 3.2 GHz, 8 GB RAM, 128 GB SSD as system, random HDDs as storage, which is where SAB would put the downloads) it would usually be 6.8 MB/sec and as high as 8 MB/sec. I'm on Comcast which is known to be crappy, but why such the difference between the two devices which both run Linux and the NAS is relatively powerful considering that while downloading and streaming content it was only at 50% CPU usage.

SABnzbd: 0.7.16
Python Version: 2.7.3 (default, Nov 13 2012, 01:34:06) [GCC 4.2.4]
Yenc enabled
PAR2 Multi-core enabled
120 MB caching

[shypike]

The Atom is no match for an i7.
OTOH with an Atom you should be able to get to about 5 MBytes/sec.
Does the NAS have sufficient memory to support a cache?

BTW: multi-core isn't really supported on Linux versions of par2cmdline.

[Reidy99]

Yeah I think I have narrowed the problem down to the NAS.

I'm running a Netgear ReadyNAS 102 using the sabnzbd app on the NAS.

It seems that when I get larger downloads, 1080p, the processor struggles with the unpacking.

Still unsure as to why the download speeds are so low though, I'm getting 50m/s down on direct downloads........

[sander]

brando56894, Reidy99,

My usual response: on low-spec hardware you could be better off with NZBget instead of SABnzbd.

@brando5694 "only at 50% CPU usage." ... on a two-core system, that might mean that one core is fully loaded.
@Reidy99: don't mix up bits and bytes

[brando56894]

I'm trying out NZBget now and it is very low resource compared to SAB (only around 10%) but I'm not sure how I feel about it because it seems to take a while to realize that the file can't be completed.