SABNZB Download speed Docker Synology

[Jearnobyl]

Hi everyone. I have a Synology DS1513+, first on DSM 6.2 and now on DSM 7.0.

On the 6.2 version I tried installing SABNZB but the download speed would not come above 11MB/s. Now on 7.0 using docker I get max 23MB/s. I have 1GB fibre internet. NZBGET gets up to 80MB/s but I like SABNZB better.

The NAS has 4GB of memory which fills up pretty fast but even when the memory is only 5% the download does not go any faster.. CPU usage is about 34%.

Anyone has any idea how to get my full download speed?
On the external pc my download speed is maximum (around 90MB/s) but its easier to download straight on the nas..

Hope someone can help me out!

[safihre]

When you use the SynoCommunity package, what speed do you get?
Do you use ssl?
Try more or less connections.

[Jearnobyl]

Seems to be fixed, The ssl was the source of the trouble. Now downloading at 100.9MB/s. Not very stable tho, Shoots up and down between 100MB/s and 80MB/s. Don't know why that is but okay

[safihre]

I think you'll get more stable speeds if you limit the speed to for example 90MB/s. It seems at 100MB/s it just can't really keep up and needs to pause the download for a few seconds to clear the buffers.
By matching the maximum speed of your hardware, the buffers stay empty and no pausing is needed.

The SSL impact is a "bug" in Python causing lots of overhead when processing SSL requests.. Hopefully at some point somebody will fix it:
https://bugs.python.org/issue37355

[Jearnobyl]

Thanks, will try to set speed at 90 and see what it does

[Jearnobyl]

Worked, Tried playing wit that a bit. 97MB/s is the max, if I go higher it goes down but now it stays stable Thanks for that.

[safihre]

Great