excimer2trace.php
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Authored by Krinkle on Jan 23 2023, 10:25 PM.

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	F36455967: excimer2trace.php
	Jan 23 2023, 10:25 PM

	F36455965: excimer2trace.php
	Jan 23 2023, 10:25 PM

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	<?php

	$profiler = new ExcimerProfiler;
	$profiler->setPeriod( 0.001 ); // every 1ms
	$profiler->setEventType( EXCIMER_CPU );
	$profiler->start();
	register_shutdown_function( function () use ( $profiler ) {
	$profiler->stop();
	file_put_contents('trace.log', $profiler->getLog()->formatCollapsed() );
	} );

	/*

	KrinkleMac in ~/Development/less.php
	$ docker run -it --rm --entrypoint /bin/bash --volume $PWD:$PWD docker-registry.wikimedia.org/releng/php81:0.2.0
	…
	nobody:/less.php# php -d auto_prepend_file=excimer2trace.php bin/lessc test/Fixtures/bootstrap-3.2/less/bootstrap.less out.css


	Drag and drop trace.log into <https://www.speedscope.app/>, click "Left Heavy".

	*/

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