Greetings,

I’m looking for somebody who has experience with Dtrace and KVM VM’s (Windows 
Specifically) to help debug some performance problems that I’m having with a 
database application.

I have a client/server application that uses SAP Advantage Database Server. 1 
VM is on 1 host and another VM is on another host.

Theres GB switching fabric in between the hosts and LACP driver being used in 
the global zone across two nics & two switches.

When I run the apps internal performance testing module on the server hosting 
the database directly the performance is great.

When I run it on the terminal server where the users access it the results are 
terrible.

I’m sure its network related and I’m looking for ways to tweak the virtio or 
change drivers entirely, but somehow need to figure out where the bottleneck is 
and I think that Dtrace is the only option at this point.

This is on self-hosted hardware BTW. Sunfire X4170 M2’s to be exact. 2 Sockets, 
6 Cores each, 144GB DDR3 Ram, SAS Drives with L2Arc and SAS SLC SLOG.

Let me know if you’re interested by direct email please and include your Skype 
ID.

Have a great day,


John Barfield / Sr Principal Engineer

+1 (214) 425-0783/ [email protected]<mailto:[email protected]>

BISS, Inc. Office: +1 (214) 506-8354

4925 Greenville Ave Suite 900

Dallas, TX 75206

support.bissinc.com<http://htmlsig.com/support.bissinc.com>

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