zfs and vfs.zfs.prefetch_disable="1"

[Ivan Voras]

> i have in my incantations for zfs on i386 to stick the following in
> /boot/loader.conf.local
>=20
> vm.kmem_size=3D600M
> vm.kmem_size_max=3D600M
> zfs_load=3DYES
> vfs.zfs.prefetch_disable=3D1

Cannot say for sure but AFAIK it was mentioned during the Great ZFS
Flamewars as a possible way to reduce memory usage by ZFS, and also as a
possible way of avoiding some deadlocks (possibly py Pawel).

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