I was installing a couple of bitcoin-/lightning nodes on old laptops lately to play around and test stuff.
One of the first things todo is always to disable the slepp/suspend/hibernate modes, which is basically just one command like
$ sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
But what I missed twice now was to also ignore the LidSwitch, which is something you don't really notice until you look at your cpu-load.
So, if you're like me and run nodes like umbrel or start9 (otherwise you probably know what you'r doing) on laptops, check ur logind.conf and uncomment/edit the HandleLidSwitch entries
$ sudo nano /etc/systemd/logind.conf
[Login]
HandleLidSwitch=ignore
HandleLidSwitchExternalPower=ignore
HandleLidSwitchDocked=ignore
My cpu-load went down from ~80+% to ~30% just doing that, which not only consumes less energy, but also gives me room to install more shit I don't actually need.
Just thought I'd tell ya.
#noderunners #umbrel #start9
This little fella, a "Block Eruptor" from ... 2013 I think, 1st gen ASIC, does a whopping 333MH/s,
or so I've been told, I never actually used it, came as a freebie with another miner I bought back then.
Fun times
#bitcoin #mining #asic
..next Node.
Will take a while to sync it seems, but we're in no hurry.
#bitcoin #umbrel #noderunner