Debugging Hardware Performance on Gen X Servers

In this text, hardware engineer Yasir Jamal from Cloudflare discusses an issue they faced when servers from one vendor (SKU-B) were consistently performing 5-10% worse than servers from another vendor (SKU-A). The team initially suspected CPU performance as the cause and ran AMD's DGEMM high-performance computing tool, but found that underperforming servers had lower Thermal Design Power (TDP) and floating-point computation rate. After trying various debugging options like disabling idle power saving mode, checking network interface, and enabling AMD Preferred I/O functionality, the team discovered a difference in memory clock frequency from Infinity Fabric system using AMD's HSMP tool. They asked the vendor to provide a new BIOS that set the frequency to 1467 MHz during compile time, which resolved the issue and improved performance of SKU-B servers to match or exceed SKU-A servers.

No tracked trend matches for this post yet.

Use this post, company, and trend context to find content marketing opportunities, perform competitive analysis, or address product feature gaps via the Plushcap MCP server or the Plushcap API.