Jails on ZFS yielding 100% load on gstat

[Mike Tancsa]

On 8/12/2018 2:50 PM, Marco Steinbach wrote:
> 
> These loads lead to the system suffering from very much delayed
> responses to even the basic task of echoing characters entered on the
> console, consequently rendering the services offered unusable to the
> users because of the delays.


Do you have a LOT of files and or metadata ? Have a look at the cache
stats to see if you are perhaps grinding away on big directory lookups?
Install sysutils/zfs-stats and post
zfs-stats -a

Also, does
top -mio -I
shed any light as to whats taking up the disk io ?

	---Mike



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Mike Tancsa, tel +1 519 651 3400 x203
Sentex Communications, mike at sentex.net
Providing Internet services since 1994 www.sentex.net
Cambridge, Ontario Canada