Reoccuring ZFS performance problems

[Adam Vande More]

On Mon, Mar 10, 2014 at 12:05 PM, Adrian Gschwend <ml-ktk at netlabs.org>wrote:

> First I thought disabling prefetch did solve the issue for a while. But
> it looks like I was too optimistic with that one. However, ls feels
> *much* faster when the system is happy since I disabled prefetch.
>
> I'm really totally lost on this one so I would appreciate hints about
> how to debug that.
>
> I'm willing to test whatever it takes to figure out where this issue is.
>

Are you using a ZFS backed swap device?



-- 
Adam