☐ ☐ SCALENE AI POWERED OPTIMIZATIONS! ## Coz: Finding Code that Counts with Causal Profiling by Charlie Curtsinger and Emery Berger R downloads 444k Coz is a profiler for native code (C/C++/Rust) (C/C++/Rust) that unlocks optimization opportunities missed by traditional profilers. Coz employs a novel technique called causal profiling that measures optimization potential. It predicts what the impact of optimizing optimizing code will have on overall throughput or latency. Profiles generated by Coz show the "bang for buck" of optimizing a line of code in an application. In the below profile, almost every effort

jpg) Luke wants to minimize response time. ## Coz: a Causal Profiler for Linux (ships with Debian / Ubuntu) > sudo apt install coz-profiler > coz run --- ./some_program args Random performance indexing S SSSSSS output ranking 5 ## What did Coz predict? ranking Increased from 16 to 22 threads 27% increase in ranking throughput ## What did Coz predict?  ranking 27% increase in ranking throughput Coz predicted a 21% improvement Exactly what we observed ## Using Causal Profiling on Ogle ![Image](/uploa

https://github.com/yse/easy_profiler Oprofile https://oprofile.sourceforge.io/examples/ Coz https://github.com/plasma-umass/coz VerySleepy https://github.com/VerySleepy/verysleepy LukeStackwalker http://lukestackwalker

https://github.com/yse/easy_profiler Oprofile https://oprofile.sourceforge.io/examples/ Coz https://github.com/plasma-umass/coz VerySleepy https://github.com/VerySleepy/verysleepy LukeStackwalker http://lukestackwalker