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cleanup

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This commit is contained in:
Simon Gardling
2026-03-03 19:21:31 -05:00
parent cdccab855d
commit d4b679d1a5
12 changed files with 256 additions and 265 deletions
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17
modules/zfs.nix
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@@ -27,15 +27,20 @@ in
boot.kernelParams =
let
gb = 32;
mb = gb * 1000;
kb = mb * 1000;
b = kb * 1000;
arc_gb = 32;
arc_mb = arc_gb * 1000;
arc_kb = arc_mb * 1000;
arc_b = arc_kb * 1000;
dirty_gb = 8; # Default value is 4GB, helps smooth writes
dirty_mb = dirty_gb * 1000;
dirty_kb = dirty_mb * 1000;
dirty_b = dirty_kb * 1000;
in
[
"zfs.zfs_arc_max=${builtins.toString b}"
"zfs.zfs_arc_max=${builtins.toString arc_b}"
"zfs.zfs_txg_timeout=120" # longer TXG open time = larger sequential writes
"zfs.zfs_dirty_data_max=8589934592" # 8GB dirty data buffer (default 4GB) for USB HDD write smoothing
"zfs.zfs_dirty_data_max=${builtins.toString dirty_b}"
"zfs.zfs_delay_min_dirty_percent=80" # delay write throttling until 80% dirty (default 60%)
"zfs.zfs_vdev_async_write_max_active=30" # more concurrent async writes to vdevs (default 10)
];