For the longest time, I thought Instruments on macOS wasn’t for me. Whenever I saw its icon show up in the /Applications folder or pop up in a launcher, I assumed it’s part of Xcode and Xcode is an IDE for Objective-C and Swift programmers and that’s not what I do and that’s why Instruments isn’t for me.

Continuous Profiling for Every Codebase

Polar Signals is a continuous profiling project for applications and infrastructure. It helps you save money, improve performance and understand incidents better.

Author describes how he was able to trace the long load times of GTA online to a bottleneck in the parsing of a JSON payload and patch the DLL to speed it up.

ACOVEA (Analysis of Compiler Options via Evolutionary Algorithm) implements a genetic algorithm to find the “best” options for compiling programs with the GNU Compiler Collection (GCC) C and C++ compilers. “Best”, in this context, is defined as those options that produce the fastest executable program from a given source code. Acovea is a C++ framework that can be extended to test other programming languages and non-GCC compilers.

Dowser is a CherryPy application that displays sparklines of Python object counts, and allows you to trace their referents. This helps you track memory usage and leaks in any Python program, but especially CherryPy sites.

RunSnakeRun is a small GUI utility that allows you to view (Python) cProfile or Profile profiler dumps in a sortable GUI view. It allows you to explore the profiler information using a “square map” visualization or sortable tables of data.