Dyskusja rtorrent pro high cpu usage

[CC81]

Hello,

I installed today rtorrent pro: rtorrent_0.9.7-0912-190912_x86_64, but after install cpu usage - node process is very high ~50%. Is this normal?

Firmware version: 4.4.1.1146
Model name: QNAP TS-251 8GB

 

[Silas Mariusz]

Maybe your system if overloaded with some other resources and there are I/O waitings which may cause such usage. On TS-877 node usage is 1.4% and in peak 2.8%. Please try disable other service or reinstall rtorrent-Pro.

 

[alexsmith2709]

I have a similar issue. Its not quite 50%, but regularly around 30% even when nothing is seeding/downloading. I've been chatting with QNAP support over the high IO usage of my NAS and rtorrent is the only thing left that they are saying is the cause.
The screenshot shows my current usage

 

[SiewcaRyżu]

By default flood ui request torrents status from rtorrent every two seconds, if you have lots of them , then flood will be top cpu consumer ..
High CPU usage · Issue #405 · Flood-UI/flood

it's old problem - but it was fixed in end of may, 2019.

 

[Silas Mariusz]

What about disabling FloodUI completely?

1. Using FAQ SSH please connect to your NAS
   
   
2. Stop rtorrent-Pro:
   

   /etc/init.d/rtorrent.sh stop

   
   
3. Change system platform in header of rtorrent.sh and set PLATFORM=x86_64_wo_flood
   
   • Display current header:
     

     head -n 6 /etc/init.d/rtorrent.sh

     #!/usr/bin/env sh
     
     NAME="rtorrent"
     VERSION=2019.0912.0
     PLATFORM=x86_64

     
     
   • To change PLATFORM execite that command:
     

     sed -i /etc/init.d/rtorrent.sh -e "s:PLATFORM=x86_64:PLATFORM=x86_64_wo_flood:"

     
     
   • Check if the new setting was applied correctly:
     

     head -n 6 /etc/init.d/rtorrent.sh

4. Start rtorrent-Pro again
   

   /etc/init.d/rtorrent.sh start

Please note:

This will not work anymore!

FYI:
Unfortunatelly I cannot help in this case since I cannot replicate this issue.

 

[alexsmith2709]

Thanks, i dont use flood anyway. This has potentially fixed it. Nothing related to rtorrent seems to go above 10% now and thats php-fpm: pool rtorrent. I am not at home to check whether the HDD activity is still going like crazy, but both iotop and htop are displaying much better numbers.