2011/4/5 Andrey Zonov <[email protected]>:
> loader.conf:
> ahci_load="YES"
> zfs_load="YES"
> vfs.zfs.arc_max="2G"
> vfs.zfs.cache_flush_disable="1" # default: 0

Are you absolutely sure of what you're doing with the
vfs.zfs.cache_flush_disable tunable ? Since you have SATA disks, I
assume you don't have a controller with memory-backed write cache or
NVRAM.

> vfs.zfs.prefetch_disable="1"    # default: 0
> vfs.zfs.txg.timeout="5"         # default: 30
> vfs.zfs.zio.use_uma="0"         # default: 0 (earlier was 1)

-- 
Olivier Smedts                                                 _
                                        ASCII ribbon campaign ( )
e-mail: [email protected]        - against HTML email & vCards  X
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  "Il y a seulement 10 sortes de gens dans le monde :
  ceux qui comprennent le binaire,
  et ceux qui ne le comprennent pas."
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