Re: HEADS UP: New ZFS in the tree.

From: Pawel Jakub Dawidek <pjd_at_FreeBSD.org>
Date: Fri, 21 Nov 2008 17:25:18 +0100
On Wed, Nov 19, 2008 at 01:58:49PM +0200, Nikolay Denev wrote:
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> 
> On 19 Nov, 2008, at 11:48 , Nikolay Denev wrote:
> >
> >Well, it looks like that on -current and a 4G amd64 machine probably  
> >there is no need
> >to tune anything. Here are my defaults with everything vm and zfs  
> >related in loader.conf commented :
> >
> >vm.kmem_size_max: 4509713203
> >vfs.zfs.arc_max: 863907840
> >
> 
> I was able to panic it again with "kmem_map too small" with these  
> settings (defaults).
> 
> This are the bonnie++ arguments that i've used:
> bonnie++  -d /tank -c 4 -r 4096 -x 9999999 -u 0:0

I wasn't able to panic my test machine running this command on i386
machine with this in /boot/loader.conf:

vm.kmem_size=1073741824
vm.kmem_size_max=1073741824

(1GB)

Although I now found that you were trying raidz2 and I had two two-way
mirrors. I'm retrying now.

PS. The panic is not yet fixed completely, unfortunately, but it should
be a bit harder to trigger it now.

-- 
Pawel Jakub Dawidek                       http://www.wheel.pl
pjd_at_FreeBSD.org                           http://www.FreeBSD.org
FreeBSD committer                         Am I Evil? Yes, I Am!

Received on Fri Nov 21 2008 - 15:25:25 UTC

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