Open-source alternatives to Stackprof

Find code blocking your Tokio workers. eBPF-powered, no instrumentation.

A stopwatch library for Rust. Used to time things.

Provides iteration per second benchmarking for Ruby

:zap: Powerful tool for avoiding N+1 DB or HTTP queries

Bullet is an Active Record performance monitor and query profiler for Ruby on Rails applications. It serves as a diagnostic utility to identify inefficient database access patterns, flag redundant requests, and suggest eager loading strategies to improve response times. The tool specifically detects N+1 queries, missing counter caches, and unused eager loading. It monitors these patterns across both standard web requests and background jobs, identifying records that are fetched but never accessed to reduce memory usage and query overhead. Analysis is supported by a system that intercepts dat

Bytehound is a Linux memory profiler that utilizes a custom global allocator to intercept memory requests and track allocations and deallocations. It records full call-stack traces for every memory operation to map allocations back to their originating source code. The project features a remote memory profiling system that streams capture data via network sockets to a separate machine, minimizing resource overhead on the target system. Analysis is supported by a specialized domain-specific query language used to automate the detection of memory patterns and anomalies. The tool covers heap al

An intrusive flamegraph profiling tool for rust.

This project is a performance analysis tool for Ruby applications using the Rack interface. It monitors request execution times and resource usage, serving as a profiler for web applications to measure latency and identify bottlenecks. The tool provides specific analyzers for database query performance, memory allocations, and garbage collection statistics. It generates call stack flamegraphs to visualize time distribution across methods and renders speed badges and timing metrics directly onto HTML pages. The system covers broader performance profiling capabilities including custom code blo

Fast and simple benchmarking for Rust projects

Ruby Tests Profiling Toolbox

Quickly find bottlenecks in Rust - one profiler for CPU, time, memory, and async code.

Take a peek into your Rails applications.

Sampling CPU profiler for Ruby

A ruby profiler. See https://ruby-prof.github.io for more information.

🐰 Bencher - Continuous Benchmarking

Hyperfine is a command-line benchmarking tool used to measure the execution time of shell commands through multiple runs and statistical analysis. It functions as a comparative benchmarking utility and a shell performance analyzer, allowing for the evaluation of multiple commands against a reference baseline to determine relative speed. The tool distinguishes itself by isolating actual command performance through shell overhead correction and the ability to bypass the shell entirely using system calls. It supports parameterized execution, enabling benchmarks to run across a range of varying i