Tag
issue-width
- Sep 10, 2026 Issue Width and Its Diminishing Returns Why widening an out-of-order issue window costs area and energy faster than it buys performance, and where the wakeup, select, and bypass networks set the ceiling. computer architecture
- May 30, 2025 Simultaneous Multithreading and the Slots It Fills How several threads share one out-of-order pipeline, which structures must be replicated to make that useful, and why adding a second thread buys less than doubling the issue width. computer architecture
- Dec 24, 2024 Issue Width and the Structural Ceiling on Instructions per Cycle How a superscalar core decides how many instructions to start per cycle, which pipeline stage usually sets the limit, and why a four-wide machine rarely retires four instructions per cycle. computer architecture