Performance Metrics - Development Environment vs PT Environment

2 copies of HL7Spy, one configured to listen on port 12000, one set to send on port 12000. Chicago data set (100K messages)

Send Machine	Receive Machine	Time to send 100K messages	Notes

Send Machine	Receive Machine	Time to send 100K messages	Notes
JR-PC	JR-PC	15 sec	4 Cores (8 Hyperthreaded Cores)
NICKWORK-PC	NICKWORK-PC	12 sec	4 Cores (8 Hyperthreaded Cores)
1st Gen I3 computer running a vm	1st Gen I3 computer running a vm	23 sec	2 Cores
PT Load Generator	PT Load Generator	57 sec	2 VM Cores
PT Application Server 02	PT Application Server 02	75 sec	4 VM Cores
PT Database Server 01	PT Database Server 01 (on H: drive)	78 sec	6 VM Cores very jerky performance as if the write to disk is conflicting with other writes Pauses in just copying a file from PT Load Generator to this machine.
JR-PC	NICKWORK-PC	36 sec
PT Load Generator	PT Application Server 02	127 sec	very jerky performance. At times no messages are sent for a period of 10 seconds or more Just copying a file from the Load Generator to this machine using windows file copy would take up to 20 seconds
PT Load Generator	PT Database Server 01 (on H: drive)	162 sec	very jerky performance. At times no messages are sent for a period of 10 seconds or more Just copying a file from the Load Generator to this machine using windows file copy would take up to 20 seconds
PT Application Server 02	PT Database Server 01 (on H: drive)	185 sec	very jerky performance. At times no messages are sent for a period of 10 seconds or more

We are expecting the best performance to be between the Application Servers and the Database Server since the Application Server must round-trip to the database for every messaging operation in Connexion. Yet we are seeing the worst performance between these 2 machines.
Counter-intuitively, the more cores we have the slower the performance
There seems to be an issue with the writing out to disk. Long pauses cause the applications to freeze intermittently and sometimes timeout.
In our local network we can copy a 90MB file in about 1 second. In the PT environment the time varied between 8 and 20 seconds with very jerky progress.
Here is a video of what it looks like to copy a 90MB file between 2 systems in the PT environment https://dl.dropboxusercontent.com/u/83119949/WP_20140217_008.mp4