ZFS arc sizing (maybe related to kern/145229)

[Rich]

vm.kmem_size_scale: 3
vm.kmem_size_max: 329853485875
vm.kmem_size_min: 0
vm.kmem_size: 5033164800

- Rich

On Wed, Apr 7, 2010 at 11:36 PM, Jeremy Chadwick
<freebsd at jdc.parodius.com> wrote:
> On Wed, Apr 07, 2010 at 11:25:57PM -0400, Rich wrote:
>> kstat.zfs.misc.arcstats.memory_throttle_count: 673016
>>
>> Since UFS has no files of any reasonable size on it (it's literally
>> just rootFS)...
>>
>> ...
>>
>> > Rich wrote:
>> >>
>> >>        vfs.zfs.arc_meta_limit=1073741824
>> >>        vfs.zfs.arc_meta_used=548265792
>> >>        vfs.zfs.arc_min=536870912
>> >>        vfs.zfs.arc_max=3221225472
>> >>
>> >> So it very clearly limits to near the minimum size, but whether this
>> >> is design or accidental behavior, I'm unsure.
>
> I don't see a vm.kmem_size entry in there, so I can't see how you're
> going to reach arc_max ever.
>
> --
> | Jeremy Chadwick                                   jdc at parodius.com |
> | Parodius Networking                       http://www.parodius.com/ |
> | UNIX Systems Administrator                  Mountain View, CA, USA |
> | Making life hard for others since 1977.              PGP: 4BD6C0CB |
>
>