Selfhosted

60093 readers

967 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.
No spam.
Posts here are to be centered around self-hosting. Please ensure it is clear in your post how it relates to self-hosting.
Don't duplicate the full text of your blog or git here. Just post the link for folks to click.
Submission headline should match the article title.
No trolling.
Promotion posts require your active participation in selfhosting or related communities, or the post will be removed. No more than 10% of your posts or comments may be self-promotional, or your post will be removed. F/LOSS Exception: If your post is about a project that is completely open source & can be self-hosted in full without payment, and your account is at least 7 days old, your post is exempt from this rule as long as you continue to engage in comments.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 3 years ago

MODERATORS

curbstickle@anarchist.nexus

curbstickle_lw@lemmy.world

Power efficiency (lemmy.zip)

submitted 2 months ago by jobbies@lemmy.zip to c/selfhosted@lemmy.world

47 comments fedilink hide all child comments

I'm wondering what folks do to optimise the power efficiency of their Linux servers. I've never really got to the bottom of what is the best way to do this and with the current energy crisis its a pertinent topic.

I'm talking about home servers, so the availability requirements are not the same as in a corporate environment. There might be vast chunks of time during the day or night when they sit idle, and home users are more tolerant of a lag when accessing resources if it means lower energy bills.

Specifically I've been thinking about:

allowing lower power states when idle
spinning-down hdd's when they're not in use
MAYBE letting machines sleep/hibernate
setting schedules of times where you know demand will be low/zero and efficiency can be managed aggressively
any other quick wins I've missed

It would be amazing if there was one tool or one guide that helps with all of that but thats never the case, is it 😅

Thoughts?

you are viewing a single comment's thread
view the rest of the comments

[–] autriyo@feddit.org 7 points 2 months ago (2 children)

Do you have any idea what your hardware is actually pulling from the outlet? Maybe it's not that bad after all?

Mine is pulling around 55W from the wall in its "normal" state. Meaning two 3.5" HDDs spun up, and a bunch of light services running. Which is squarely in "not great, not terrible" territory.

Apart from flipping the power saver switch on the mainboard I haven't done anything to save power. I haven't checked if that's doing anything either. It's a 3rd gen core i5 iirc, which isn't great at idle power consumption, so maybe that switch is doing something...

I also haven't had any luck with getting the drives to spin down reliably anyways, and afaik it's better for them to just stay spinning so I haven't bothered much to change that.

[–] Buck@jlai.lu 6 points 2 months ago

Just as a reference, my NUC with 40+ containers, runs at around 3-4 W, not counting the 2,5" 5400 rpm HDD attached.

[–] tburkhol@lemmy.world 3 points 2 months ago

Logging power use by my server was one of the motivators to add homeassistant. That also showed me that specific containers use a (relative) ton of background power. Immich and authentik each raised power consumption by 2-3 watts, so I leave them down unless I have specific need.