Good question. I was fortunate to have the Pi in "slow mode" so tried doing a file transfer using FTP from my Synology NAS. In slow mode, the Pi was, at best, able to achieve about 4 MB/s. I rebooted the Pi and tried again and it downloaded the same file at 64.2 MB/s. As a comparison, my Windows laptop downloaded the file at around 85 MB/s. So there's a pretty severe slow-down when the Pi is in slow mode.Does speed drop over the local network as well?
how do you do theses downloads ?sladflob wrote: ↑Mon Nov 04, 2019 1:17 pmHi, I managed to narrow down the time period where the slowdown occurred to a window of a few minutes (I was downloading some files - one download was fast, the next one was slow) and unfortunately there doesn't seem to be anything in the syslog for that time period. I also looked in /var/log messages.
Rebooting daily is not really a solution - I'd like to get to the bottom of what's going on. I'm fairly certain it has nothing to do with sabnzbd per se, other than that it's the process that uses the network a lot so it's where I first notice the slowdown. As I mentioned in an earlier post, once it's in that state even FTP on the local network is terribly slow. Next time it happens I'll try killing the sab process and see if it makes any difference.epoch1970 wrote: Out of RAM? Too many open connections/files?
Given the use you make of the machine, I would just leave it at that and have cron reboot it every day.
Possibly! I have updated dhcpcd so will see what happens. Of course now it's not in the slow network state and who knows how long it will stay "good", which makes it very difficult to tell if it's been fixed or not.dustnbone wrote: Could it possibly be related to the dhcpcd issues discussed here?
It's not just sabnzbd - when it's in the "slow state", FTP transfers over my local network are also affected. Or do you think it's possible that sabnzbd is somehow causing the network interface to go into the slow state?epoch1970 wrote: SABnzbd Would be my prime suspect. Try suspending the use of that thing, reboot, and see if performance slows down over time.
I don’t think an intermittent hardware issue with Ethernet is possible.
Yes, have tried that, and also tried bypassing the switch and plugging directly into the router.