Selfhosted
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.
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Serious question, what does RAM help with in the context of self hosting? I recently bought 32G for my server, and it's DDR3 ecc so it's so cheap I could have afforded 64 but I just kept wondering what will I use it for? I rarely go north of 6G usage and that's with half a dozen services, a Minecraft server etc... I just don't know what kind of services are RAM hungry.
VMs mostly. What are you hosting on Minecraft that isn’t using >=4 gigs?
Also ZFS.
oh yeah i see how that can be hungry
Just a vanilla server i play on with my son, it's got 2G and i haven't noticed anything out of the ordinary. Chunk gen is slow-ish but i suppose that's CPU-bound.
BTW i exagerated in my initial comment, i looked at the machine and it's sitting just under 8G of used RAM.
Jesus christ 😅 no idea if you're jesting
ZFS will use memory to cache. Right now my unraid server is using 16gigs, most of that is being used by ZFS to cache files. 4gigs is all ~20 containers are using.
My use case might not be very relatable, but I run a bunch of stuff cached in ramdisk.
One example is if my jellyfin server has to transcode something, I have it use ramdisk instead of my SSD for the transcoding cache.
I see, that's interesting. I do a lot of transcoding but offline so i don't have usage for such a cache. I've tested various storage solutions but on my setup, transcoding is always CPU-bound, even on old ass HDDs the bottleneck is never I/O.
I do reencode bluray remuxes too, and also then use ramdisk for it.
I've just, always had enough ram to do it so I've stuck with it. And the ram is probably gonna take the wear better than SSDs do.
I also use it for download cache for some things, smaller things like music and books/manga.
Probably not a lot.
My system idles at 3gb.
But then I do AI stuff and it needs 15-80gb. And I do data analyses that can use a lot.
Yeah i specifically don't do any AI workloads on my server, that would be stupid slow with my old ass hardware. But my buddy (who's a bit impulsive with money) bought two Spark GX10s and we're likely to get some fun out of them :)