Hi all,
Well we conducted another test (much better than the last one - it had too many
unpredictable variables):
1. 1 destination machine let's call it dest1
2. dest1 has 2 nics
2.1 vlan 411 access mode thru a VSWITCH
2.2 vlan 420 trunck mode directly thru osa devices
On 10/30/2011 at 12:42 PM, Offer Baruch offerbar...@gmail.com wrote:
We are having real performance issues and just can*t find the reason. CPU is
not utilize and we can still see stolen time on all guests.
Have you checked to see if an excessive amount of DIAGNOSE X'9C' (Voluntary
Time
Re performance, there has been no need to change time slice since qdio,
about 5 years ago.
Offer Baruch wrote:
Hi all,
Well we conducted another test (much better than the last one - it had too many
unpredictable variables):
1. 1 destination machine let's call it dest1
2. dest1 has 2 nics
Hi,
I am not a current S/390 customer, but when I was I spent quite some time
together with Rob vd Heij analysing VSwitch performance and the workings of the
virtualised instructions (none of them published by IBM) that go with them. At
that time (z/VM 5.3 ish) those instructions needed to
No... how can check that?
Thanks!
Offer
-Original Message-
From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Mark
Post
Sent: Sunday, October 30, 2011 7:27 PM
To: LINUX-390@VM.MARIST.EDU
Subject: Re: z/VM Switch performance
On 10/30/2011 at 12:42 PM, Offer Baruch
On 10/30/2011 at 02:47 PM, Offer Baruch offerbar...@gmail.com wrote:
No... how can check that?
With a z/VM performance monitor.
Mark Post
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