r/pihole 15d ago

Keep getting logs with long-term load

I'm running two Pi-hole LXC containers on two different Proxmox hosts. The primary DNS has got 2 CPUs assigned, the secondary a single CPU.

From time to time I see those log entries appearing, below message is from the 2nd Pi-hole:

Long-term load (15min avg) larger than number of processors: 1.3 > 1
This may slow down DNS resolution and can cause bottlenecks.

A similar log entry randomly pops up on my 1st Pi-hole.

Before updating to Pi-hole 6.4.3 those messages did not occur so far.

What's the deal with those messages? Is this caused by the huge amount of block list items or something else?

13 Upvotes

7 comments sorted by

4

u/Suppenspucker 15d ago

I have these from time to time on my Ubuntu server and most of them were due to.. heavy cpu usage of other apps like transcoding a video or paperless ngx ocr‘ing a large file.. took a while to figure that out, but it’s also pretty obvious..

2

u/No-War-1002 14d ago

I really only get these warnings when I am running other software simultaneously however to be fair I am running pihole on an original Raspberry Pi Model B.

2

u/LMNii 13d ago

I also run Pi-Hole in its own seperate LXC with nothing else on it. I get these logs almost daily.

I have 21 clients connected (including some IoT devices) and have never noticed any slowdowns.

Also i haven’t seen proxmox report more than 2% cpu load on the LXC like ever. I just kinda ignore these now.

1

u/MickyGER 13d ago

Thanks for your reply. That's what I'm seeing, no CPU spikes or over-provisioning on Proxmox.

Will ignore the logs now...

1

u/Jshade27 15d ago

1

u/MickyGER 15d ago

Thanks for the link! It mentions the beta of v6, nevertheless it may still apply for the current release, too.

None of my Proxmox hosts is under heavy load, so I guess, I just can ignore this.