extremely slow disk I/O after updating to 12.0

[Robert Schulze]

Hi,

Am 03.07.19 um 16:33 schrieb David Demelier:
> Le 03/07/2019 à 13:43, Robert Schulze a écrit :
>> we have seen a drop in I/O performance beginning with 11.2-RELEASE.
>> Try disabling scattered ABD:
>>
>> sysctl vfs.zfs.abd_scatter_enabled=0
> 
> Thanks for the answer. I'm trying this.
> 
> Is this tunable available at boot (i.e. /boot/loader.conf) or do you put
> it in /etc/sysctl.conf?

I have set this tuneable in /boot/loader.conf.

with kind regards,
Robert Schulze