SABnzbd Forums

Hi!

I'm running Sabnzbd 0.5.6 on my Ubuntu server. My cpu is a Pentium 4 3.2 gh (one core but with hyper threading). The thing is that I never get as fast download as from my Core I7 client (~90 mbit). I'm never getting more than 75 mbit max. According to Top or Nmon the cpu is not maxed while downloading, nor are the disks. But I don't know if the CPU value is interpreted correctly due to the hyper threading (nmon,top show two cpus). I'm quite sure it's not the network either as the server is plugged into a very fast network. Ping to usenet server is great.

Should 3.2 ghz Pentium 4 enough for downloading at 100 mbit?

Ps. I'm using all the tricks to optimise download speed (the same as on my client) 120MB cache. Also checked python-yenc.
I've tried different Usenet providers and with or without SSL.

That's a good question.
My MIPS Seagate Dockstar running at 1,2Ghz can cope with 30Mbit/s
My guess is that a P4 at 3,2Ghz can easily cope with 100Mbit/s.
Maybe you'll have to disable SSL.
I heard (actually read) they eat a lot of CPU power.
Cheers

3.2GHz is overkill for 100Mbit and your issue probably lies elsewhere.
If you don't have that many threads (connections to the Usenet server) downloading yet, try adding more.

If you believe the hyper-threading could be an issue, you can always test that by disabling it in the BIOS or passing the 'noht' option to Linux.

Thank you both. Will try that.