mimas: limit zfs arc at 64 GiB
Per arcstat this should free up ~30 GiB more memory, which we can eventually allocate to the colocated postgresql instance.
Martin Weinelt committed
Jul 12, 2026 at 23:03 UTC
0b4b5e2ceed76115539c4c42001898e20180e14d
1 file changed
+3
build/mimas/boot.nix
+3
@@ -6,6 +6,9 @@
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"nvme"
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"usbhid"
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];
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+ kernelParams = [
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+ "zfs_arc_max=68719476736.0" # 64 GiB
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+ ];
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supportedFilesystems.zfs = true;
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loader = {
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efi.canTouchEfiVariables = false;