symfony/src/Symfony/Bundle/FrameworkBundle/Resources/config/collectors.xml

<?xml version="1.0" ?>

<container xmlns="http://www.symfony-project.org/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.symfony-project.org/schema/dic/services http://www.symfony-project.org/schema/dic/services/services-1.0.xsd">

    <parameters>
        <parameter key="data_collector.config.class">Symfony\Bundle\FrameworkBundle\DataCollector\ConfigDataCollector</parameter>
        <parameter key="data_collector.app.class">Symfony\Bundle\FrameworkBundle\DataCollector\AppDataCollector</parameter>
        <parameter key="data_collector.timer.class">Symfony\Bundle\FrameworkBundle\DataCollector\TimerDataCollector</parameter>
        <parameter key="data_collector.memory.class">Symfony\Component\HttpKernel\Profiler\DataCollector\MemoryDataCollector</parameter>
    </parameters>

    <services>
        <service id="data_collector.config" class="%data_collector.config.class%">
            <tag name="data_collector" core="true" />
            <argument type="service" id="service_container" />
        </service>

        <service id="data_collector.app" class="%data_collector.app.class%">
            <tag name="data_collector" core="true" />
            <argument type="service" id="service_container" />
        </service>

        <service id="data_collector.timer" class="%data_collector.timer.class%">
            <tag name="data_collector" core="true" />
            <argument type="service" id="service_container" />
        </service>

        <service id="data_collector.memory" class="%data_collector.memory.class%">
            <tag name="data_collector" core="true" />
        </service>
    </services>
</container>