Tag
performance-counters
- Sep 8, 2026 Virtualized Performance Counters and the Time They Do Not Count How a guest gets access to a PMU, what context switching the counters costs, and why the cycles reported inside a guest systematically omit the time the hypervisor spent on its behalf. virtualization
- Jan 22, 2026 Warp Stall Reasons and Cycle Attribution How a profiler turns idle issue slots into named stall categories, what each category actually means at the scheduler, and how to read the breakdown without over-interpreting it. gpu computing
- Jun 24, 2025 Measuring Remote Access with Hardware Counters Which performance events distinguish a local from a remote memory access, why per-node counters answer a different question than per-process ones, and how the two are combined to find misplaced data. memory systems
- Feb 4, 2025 Achieved Bandwidth Versus the Quoted Peak Why a measured stream rate falls short of the number on the datasheet, how to count the bytes a kernel really moved, and which part of the gap is structural. gpu computing
- Apr 6, 2022 Sector Counting and Why Cache Hit Rate Misleads How memory transactions are accounted in sectors, why a high hit rate can coexist with poor performance, and how to read the traffic counters that separate the two. gpu computing