TIP: Time-Proportional Instruction Profiling
Björn Gottschall, Lieven Eeckhout, Magnus Jahre · 2021
A fundamental part of developing software is to understand what the application spends time on. This is typically determined using a performance profiler which essentially captures how execution time is distributed across the instructions of a program. At the same time, the highly parallel execution model of modern high-performance processors means that it is difficult to reliably attribute time to instructions — resulting in performance analysis being unnecessarily challenging.