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try to tune ZFS more

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Christoph Cullmann 2025-04-27 16:24:40 +02:00
parent 338d8c04d0
commit 04d38c28b3
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1 changed files with 17 additions and 10 deletions
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27
share/common.nix
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@ -114,20 +114,27 @@ in
# tweak ZFS
boot.extraModprobeConfig = ''
# maximal 4 GB ARC
options zfs zfs_arc_min=134217728
options zfs zfs_arc_max=4294967296
options zfs zfs_txg_timeout=30
# NVMe tuning
options zfs zfs_txg_timeout=100
options zfs zfs_vdev_async_read_max_active=2048
options zfs zfs_vdev_async_read_min_active=1024
options zfs zfs_vdev_async_write_max_active=2048
options zfs zfs_vdev_async_write_min_active=1024
options zfs zfs_vdev_queue_depth_pct=100
options zfs zfs_vdev_sync_read_max_active=2048
options zfs zfs_vdev_sync_read_min_active=1024
options zfs zfs_vdev_sync_write_max_active=2048
options zfs zfs_vdev_sync_write_min_active=1024
# less scrub impact on other IO
options zfs zfs_scrub_delay=32
options zfs zfs_top_maxinflight=1
options zfs zfs_vdev_scrub_min_active=1
options zfs zfs_vdev_scrub_max_active=1
options zfs zfs_vdev_sync_write_min_active=8
options zfs zfs_vdev_sync_write_max_active=32
options zfs zfs_vdev_sync_read_min_active=8
options zfs zfs_vdev_sync_read_max_active=32
options zfs zfs_vdev_async_read_min_active=8
options zfs zfs_vdev_async_read_max_active=32
options zfs zfs_vdev_async_write_min_active=8
options zfs zfs_vdev_async_write_max_active=32
options zfs zfs_vdev_def_queue_depth=128
'';
# tune the ZFS pool for NVMe