Noticed that on my ThinkPad P14s AMD Gen 1 with #FreeBSD and ZFS as the filesystem that it would sometimes nearly use up all of the 16GB ram. So as I only have a 1TB NVME I decided to read up and found that really 1GB is sufficient for every 1TB of drive. So I set the maximum to 2GB and the minimum to 1Gb and hopefully this will be OK for my laptops desktop useage?
/boot/loader.conf
# Set Maximum for ZFS ARC
vfs.zfs.arc_max="2147483648"
# Set Minimum for ZFS ARC
vfs.zfs.arc_min="1073741824"
Justine Smithies
npub1w6…z6kyw
2026-06-21 08:30:09 UTC
Author Public Key
npub1w65rptwmg7gr50yqjdmje49s8kfk4e95hwqgzr2zqpfynjzt29lq0z6kywSeen on
wss://relay.ditto.pubPublished at
2026-06-21 08:30:09 UTCEvent JSON
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"pubkey": "76a830addb47903a3c8093772cd4b03d936ae4b4bb80810d42005249c84b517e",
"created_at": 1782030609,
"kind": 1,
"tags": [
[
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],
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"https://snac.smithies.me.uk/justine/p/1782030609.680411",
"activitypub"
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[
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"content": "Noticed that on my ThinkPad P14s AMD Gen 1 with #FreeBSD and ZFS as the filesystem that it would sometimes nearly use up all of the 16GB ram. So as I only have a 1TB NVME I decided to read up and found that really 1GB is sufficient for every 1TB of drive. So I set the maximum to 2GB and the minimum to 1Gb and hopefully this will be OK for my laptops desktop useage?\n\n/boot/loader.conf\n\n# Set Maximum for ZFS ARC\nvfs.zfs.arc_max=\"2147483648\"\n\n# Set Minimum for ZFS ARC\nvfs.zfs.arc_min=\"1073741824\"\n",
"sig": "b36f170a5748c426220d4b74fa28d3e2214aa993f45d698874874215bc8119121fe8c76e0f90b9e7f94fd4f883fade8d7da1c9d7e6c6bc95b8cb0d549de85b9d"
}