Charles Stephan > Lenovo Press

Charles Stephan is a Senior Engineer and Technical Lead for the System Performance Verification team in the Lenovo Performance Laboratory at the Lenovo Infrastructure Solutions Group (ISG) campus in Morrisville, NC. His team is responsible for analyzing the performance of storage adapters, network adapters, various flash technologies, and complete x86 platforms. Before transitioning to Lenovo, Charles spent 16 years at IBM as a Performance Engineer analyzing storage subsystem performance of RAID adapters, Fibre Channel HBAs, and storage servers for all x86 platforms. He also analyzed performance of x86 rack systems, blades, and compute nodes. Charles holds a Master of Science degree in Computer Information Systems from the Florida Institute of Technology.

Charles Stephan has authored the following 5 documents. Click one of the links below to show just the documents of that type.

All Documents by Charles Stephan

Tuning UEFI Settings for Performance and Energy Efficiency on 4th Gen Intel Xeon Scalable Processor-Based ThinkSystem Servers
Planning / Implementation, first published 16 Nov 2023

Optimizing Memory Performance of Lenovo ThinkSystem Servers
Planning / Implementation, first published 11 Jul 2017

Optimizing Memory Performance of Lenovo Servers Based on Intel Xeon E7 v3 Processors
Planning / Implementation, first published 17 Nov 2015, last updated 4 Apr 2016

Quantifying the Power Savings by Upgrading to DDR4 Memory on Lenovo Servers
Positioning Information, first published 4 Feb 2016, last updated 10 Feb 2016

Optimizing Memory Performance of Intel Xeon E7 v2-based Servers (withdrawn)
Planning / Implementation, first published 4 Jun 2015