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PIDs, how fast are they increasing in Merlin 378.51 (RT-AC56U)

PabloAbonia

Regular Contributor
My current setup is running 378.51, but on a daily basis the PIDs increase by 3000-5000. Within days, I'm exceeding PID numbers of 20-30,000.

I have no idea what could be doing this and I'm not sure how to track down the cause. It just doesn't seem like it should be increasing this fast.

Any thoughts

Thanks,

Pablo
 
What are PIDs?
 
My current setup is running 378.51, but on a daily basis the PIDs increase by 3000-5000. Within days, I'm exceeding PID numbers of 20-30,000.

I have no idea what could be doing this and I'm not sure how to track down the cause. It just doesn't seem like it should be increasing this fast.

Any thoughts

Thanks,

Pablo

Are you referring to process IDs?

What is wrong with PIDs increasing?
Do your logs mention anything abnormal?
What features are you using? DLNA? UPNP? AiCloud?

If you have no problems with your network, I would ignore this PID "problem".
 
The process IDs should only increase with a program being run. DLNA, uPNP, SMB, Avahi (iTunes server) are running and have configuration files in place. Regardless, none are working very hard. Unless they're firing off new programs, they really isn't a reason for the PIDs to increase... That is unless you're happy with several thousand programs running each day, but having no means to track was is being run (ps command).

Could anyone with terminal access tell me how high there PIDs get in a day?

Thanks,

Pablo


Sent from my iPad using Tapatalk
 
I'd suggest that you enable ssh or telnet access to your router, then you can log onto it and issue the ps or top commands to see for yourself.
 
I'd suggest that you enable ssh or telnet access to your router, then you can log onto it and issue the ps or top commands to see for yourself.

I think he already has. That is why he is asking for other examples. :)


@PabloAbonia
I just SSHed into my RT-N66U and got this:
admin@merlin:/tmp/home/root# ps | tail -n1 && echo $(uptime)
476 admin 1432 S tail -n1
15:11:04 up 1:55, load average: 0.00, 0.00, 0.00


You can see that my highest PID is approximately 476 with 2 hours of uptime. Sorry that the uptime is so low. A local storm must have caused the power to flicker.

I will post again tomorrow after it has been running for another 24 hours. :)


Edit: I do not run much on my RT-N66U. It is in AP mode.
The only extra thing I run is SSH/dropbear.
 
Last edited:
My highest PID is 21729 after 12 days uptime. See attached screenshot.
htop.png
 
I think he already has. That is why he is asking for other examples. :)
Ah, I see. I would have thought that if a new PID is being created every 20 seconds then by running "top" he would be able to see them. Perhaps they're being forked from a torrent program?

PS My highest PID number is 3739 after 20 days but I'm not running torrents or a media server.
 
Last edited:
Hey OP, can any services on your router be directly accessed through WAN?

For example, if someone was attempting to bruteforce your SSH, I think you would see a constant rise in PIDs because each SSH session creates a new dropbear process (I think).
 
No. Even the services that are on, are not that busy as I don't serve information off of them, but merely allow them to be visible. No torrents or anything added to the base Merlin build. It just seemed strikingly higher than in previous updates.


Sent from my iPad using Tapatalk
 
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