Illumos Dropping SPARC, Allows For Newer Compiler + Eventual Use Of Rust In The Kernel

[aht0]

Then limit ZFS's memory usage. That shouldn't be necessary with 4GB+ ram available. The FreeBSD recommended minimum is 4GB for comfortable use with most workloads and what you are experiencing is to be expected since ZFS should yield its used ram for the system.

I've read that in the past that 2GB is the ZoL extreme minimal a system should; FreeBSD says 1GB is extreme minimal (possibly with tuning); most places say 4GB+1GB per TB of ZFS storage is optimal.

When you turn non-essential features off, you can get by using sub-1Gb RAM. On FreeBSD at least. 512Mb RAM chugged along on ZFS - just take some time first with tuning flags.
Another question is, these days, why'd you even have machine with 4GB RAM or less - RAM's cheap enough..? I've got two rigs myself, both have 32GB installed. One of the two's even using ECC unbuffered DDR4 sticks.

[skeevy420]

When you turn non-essential features off, you can get by using sub-1Gb RAM. On FreeBSD at least. 512Mb RAM chugged along on ZFS - just take some time first with tuning flags.
Another question is, these days, why'd you even have machine with 4GB RAM or less - RAM's cheap enough..? I've got two rigs myself, both have 32GB installed. One of the two's even using ECC unbuffered DDR4 sticks.

I don't even know why a person would consider ZFS on 4GB or less system. There are better tools for the job. But I agree that if a person limits it up and sets the right feature flags they should be just fine on a low memory system.

4Gb or less machines -- About all I can think of are people repurposing shitty spec'd Chromebooks, Atoms, HPs, Dells, etc that come with crap amounts of ram and aren't upgradable or are in a place where ram upgrades are less than likely to occur (places like N. Korea). I'm currently running a 4TB mirror with 32Gb of non-ECC 3600 DDR4 sticks. 3200 unbuffered ECC was stupid expensive in February when I built my current system and took me way over-budget so I opted for faster memory to make my APU happy.

[aht0]

3200 unbuffered ECC was stupid expensive in February when I built my current system and took me way over-budget so I opted for faster memory to make my APU happy.

Unbuffered-ECC DDR4 SODIMM's weren't too bad. Bit over hundred euros for 16Gb sticks (German Amazon). Regular-sized sticks cost more but availability was much bigger issue than cost. There simply didn't seem to be any to be had. Unless you opted for vendor-branded workstation sticks with their attached massive air in prices. I searched long before I found couple of "generic" 2666MHz unbuffered-ECC sticks from Crucial, costing 140eur/pc and settled on those.

[skeevy420]

Unbuffered-ECC DDR4 SODIMM's weren't too bad. Bit over hundred euros for 16Gb sticks (German Amazon). Regular-sized sticks cost more but availability was much bigger issue than cost. There simply didn't seem to be any to be had. Unless you opted for vendor-branded workstation sticks with their attached massive air in prices. I searched long before I found couple of "generic" 2666MHz unbuffered-ECC sticks from Crucial, costing 140eur/pc and settled on those.

I was finding equivalent prices here in the states at the time when I came across a special for 32GB of 3600 for $134 that I couldn't pass up; especially because I was buying an APU.