On Tue, 17 Apr 2018 at 12:45 Thomas Fecke <thomas.fecke@eset.de> wrote:

Okay,

it seems to be that the Storage IO is the Problem – every Write and Read Process takes a lot of time

Sometimes the copy Job stops with 0/Byte and the traffic goes up and down like a mountain.

But the Storage Read and Write M/s looking fine… I don’t get it

Any toughts?

Keep monitoring you storage backend interface and see what's going on there if you don't see anything special on the host. It could be the network that leads to slow IO as well, who knows.

If the initial VM creation is taking long you might want to create a pool from your template with Pre-Started VMs, and that would at least save you from the wait when you actually need the VM.

From: users-bounces@ovirt.org <users-bounces@ovirt.org> On Behalf Of Thomas Fecke
Sent: Dienstag, 17. April 2018 10:58
To: users@ovirt.org
Subject: [ovirt-users] Performance Issue

Hey Guys,

We Deploy a lot of Templates. We got our Training Environment build in Ovirt.

Our Problem – when we Deploy the Same Template. The VM´s getting slower every Time we deply a new VM from that Template.

And I really don’t know why. RAM locking good – CPU and Network looking good.

But it take about 15 Minute to create a new Template based VM – normaly it takes about 30 Seconds.

I checked nload and the Interface traffic – but its not really high.

Can someone explain why its getting so slow and how to troubleshoot?

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