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Homebrew Performance Optimization

Homebrew Performance Optimization

1
posts
2018

This post details the use of Datadog APM to identify and resolve performance bottlenecks in the Homebrew package manager. The investigation focused on the `brew linkage` command, which was found to be slow due to the `LinkageChecker::check_dylibs` function. Two optimization solutions were explored: multi-threading (inviable due to the GIL) and caching. An initial caching mechanism using SQLite3 was implemented, significantly reducing execution time from 11.5 seconds to 182 milliseconds for 106 packages. A subsequent implementation using Ruby's `pstore` was also explored as a dependency-free alternative.

2018

Using Datadog APM to improve the performance of Homebrew | Datadog

4/24/2018

This post details the application of Datadog APM to diagnose performance issues in Homebrew's `brew linkage` command. It describes the instrumentation process using the `ddtrace` gem, the identification of `LinkageChecker::check_dylibs` as the bottleneck, and the implementation and performance evaluation of two caching strategies: SQLite3 and `pstore`. The SQLite3 implementation achieved a performance improvement from 11.5 seconds to 182 milliseconds for 106 packages.