Mark Seger is a retired master technologist with over four decades in high-performance computing and roughly 10 years of documented recent professional experience, known for designing and tuning complex Linux clusters and crafting bespoke management applications. He spent long tenures at DEC and Hewlett-Packard (including HP Enterprise and SUSE) consulting on architecture, analysis, testing and troubleshooting for some of the largest HPC deployments. Mark is the author of the open-source performance monitoring tool collectl, reflecting a practical, systems-first approach to observability and lightweight tooling. Based in West Hartford, Connecticut, he blends deep operational instincts with hands-on development—often solving problems at kernel, cluster and application layers that standard tools miss. An understated strength is his focus on performance data fidelity and low-overhead monitoring, enabling long-term, production-grade analysis in resource-constrained environments.
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