1. Alerting and On-Call Management for Dev&Ops Teams

  2. weighttp is a lightweight and small benchmarking tool for web servers.

  3. httpress is a high performance HTTP server stress and benchmark utility.

  4. Discover exploding trends before they take off

  5. Benchmark-ips offers an iterations per second enhancement to Benchmark.

  6. Derailed Benchmarks is a benchmarking tool for Rails.

  7. Callgrind is a profiling tool and KCachegrind is able to visualize output of the profilers.

  8. stackprof is a a sampling call-stack profiler for ruby 2.1+

  9. Apache ab is a tool for benchmarking Apache Hypertext Transfer Protocol (HTTP) server.

  10. Get Process Memory is a library that provides stats on the memory usage of a process.

  11. VisualVM is a visual tool integrating several commandline JDK tools and lightweight profiling...

  12. Oink is a Rails plugin and log parser to help narrow down the source(s) of increased memory usage in rails applications.