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Example code of totara/xhprof

Informations about the package xhprof

xhprof

This is a fork specifically for Totara projects.

XHProf is a function-level hierarchical profiler for PHP and has a simple HTML based navigational interface. The raw data collection component is implemented in C (as a PHP extension). The reporting/UI layer is all in PHP. It is capable of reporting function-level inclusive and exclusive wall times, memory usage, CPU times and number of calls for each function. Additionally, it supports ability to compare two runs (hierarchical DIFF reports), or aggregate results from multiple runs.

This version supports PHP8 and supports Totara 20 onwards only.

PHP Version

Installation

configuration add to your php.ini

php.ini configuration

    Options       Defaults Version Explain
xhprof.output_dir   "" All Output directory
xhprof.sampling_interval   100000 >= v2.* Sampling interval to be used by the sampling profiler, in microseconds
xhprof.sampling_depth   INT_MAX >= v2.* Depth to trace call-chain by the sampling profiler
xhprof.collect_additional_info   0 >= v2.1 Collect mysql_query, curl_exec internal info. The default is 0. Open value is 1

Turn on extra collection

php.ini adds xhprof.collect_additional_info

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Options

Example

PDO::exec

PDO::query

mysqli_query

Output data

PDO::prepare

Convert preprocessing placeholders for actual parameters, more intuitive analytic performance (does not change the zend execution process)

Output data

Curl

Output data

PECL Repository

All versions of xhprof with dependencies

PHP Build Version
Package Version
Requires php Version >=8.2.0
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