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Sabnzbd not saturating 1 GB/s

Posted: July 28th, 2023, 11:50 am
by wayne_1337
Hey guys,

I'm currently migrating from nzbget to sabnzbd. I'm using 3.1.1 from debian bullseye (yes I know a bit outdated). The server is HDD only, however it has plenty of RAM thus incomplete and complete folders point to a tmpfs.
nzbget gives me a continuous datarate of ~ 108 MB/s.
sabnzbd on the other hand limits at around 88 MB/s.
CPU is a Intel Xeon E5-1650V3 but the load does not go beyond 70% of one core. What can I try out to get more performance out of it?

P.S. some further information which I think are not relevant:
It runs in a lxc container of Proxmox (same container as nzbget). It uses native IPv6 connectivity routed by the host.

Re: Sabnzbd not saturating 1 GB/s

Posted: July 28th, 2023, 1:12 pm
by sander
We're now at SABnzbd 4.0.3 ... which has a lot of speed improvements.

So do you want that?

FWIW: With SAB 4.0.3, I get 250 MB/s on my i3 with SSD.

Re: Sabnzbd not saturating 1 GB/s

Posted: July 30th, 2023, 1:39 pm
by wayne_1337
Sorry my bad that I didn't check the changelogs.
However your hint was very good. After installing 4.0.3 I get 110MB/s. Thanks a lot!

Re: Sabnzbd not saturating 1 GB/s

Posted: July 30th, 2023, 1:41 pm
by sander
Nice: linespeed. Cool.