James Melin wrote:
Alan, Thanks for the Clarification.
Based on that I shouldn't be seeing the performance I am seeing.
I'm just trying to figure out what in hell can cause a performance difference
of 227:1 at DR vs back home. Yes. That's correct 227:1 sometimes
slightly better, sometimes slightly worse. JITC is reporting that it is enabled.
An application that loads the initial page here in 1 second took 3:47 to load
at DR.
If we're under basic mode, w/2 levels of VM, we should not be getting the SIE
in software penalty. I understand that VM under VM will be slightly
slower unless you do certain tuning steps. The behaviour is certainly more like
I would expect in software SIE rather than in VM under VM.
The consensus of the learned here is that the problem lies in Java.
I disagree. There is no logical reason to explain why Java at DR would be
performing so poorly - we make no configuration changes to Linux except DNS
- and even then the major IP stuff is handled in /etc/hosts and got adjusted to
point to the correct IP address (Both wire and Hipersocket) of the
recovery system on a flat network. Same subnet.
I believe that the poor Java performance is a manifestation of a different
problem, be it VM levels, be it maintenance, be it configuration of the
environment - something. I cannot prove that this is the case without running
the Linux guests 'first level'. I can't get any buy-in from the people
who have more say in this than I, to execute the Linux in a first level guest
so we can see how it compares to running our VM under the DR VM - The
fact not withstanding that nobody here on the list recovers that way. For
similar reasons.
Can you try your DR setup at home?
--
Cheers
John
-- spambait
[EMAIL PROTECTED] [EMAIL PROTECTED]
Tourist pics http://portgeographe.environmentaldisasters.cds.merseine.nu/
do not reply off-list
----------------------------------------------------------------------
For LINUX-390 subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit
http://www.marist.edu/htbin/wlvindex?LINUX-390
