vSTREAM-STL S2D Capabilities

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Test setup

Source: OPVXG Traffic Generator

Destination: ME: CRT-VIR-A-VVSTL62:if4

vSTREAM Standalone version 6.2.0-451 on NGS 6.2.0-658 with two MON interfaces (auto tsa 50/50)

OptiView XG Traffic Generator version 

vSphere: ESXi v6.7 with 300 IOS

Traffic type

 

OPVXGTGPayloadType.png
OPVXGTGPayloadType.png

 

Traffic measured

Graphically with Link Monitor for 60' at 5' AVG:

 

VSTSTLS2D.png
VSTSTLS2D.png

 

Conclusion

Because the unofficial default capacity of a VSphere Standard Virtual Switch (VSS) is considered to be around 250kpps, we must conclude  that vSTREAM-STL Stream to Disk capabilities are hardly affected by the number of CPU and memory assigned to the virtual machine

The 5' results show a high variation over time at 1488kpps (almost 500% of the assumed capacity of the VSS) is exeeded. 

We did experience instability issues whenever the memory size was not in line with the numer of virtual CPU.  You must provide 2GB of RAM per vCPU.  This is also a recommendation of VMware itself.