SPX, which stands for Simple Profiling eXtension, is just another profiling extension for PHP.
It differentiates itself from other similar extensions as being:
* totally free and confined to your infrastructure (i.e. no data leaks to a SaaS). * very simple to use: just set an environment variable (command line) or switch on a radio button (web request) to profile your script. Thus, you are free of: * manually instrumenting your code (Ctrl-C a long running command line script is even supported). * using a dedicated browser extension or command line launcher. multi metrics capable: 22 are currently supported (various time & memory metrics, included files, objects in use, I/O...). * able to collect data without losing context. For example Xhprof (and potentially its forks) aggregates data per caller / callee pairs, which implies the loss of the full call stack and forbids timeline or Flamegraph based analysis. * shipped with its web UI which allows to: * enable / configure profiling for the current browser session * list profiled script reports * select a report for in-depth analysis, featuring these interactive visualizations: * timeline (scale to millions of function calls) * flat profile * Flamegraph
Package built for PHP 8.4 as Software Collection (php84 by remi).