DataCollector hit maximum execution time

[julien-maitan]

When I enable the DataCollector on my dev environment, each page call hit the maximum execution time and sometimes the memory limit. logs.txt

php version:

php -v
PHP 7.1.15-1+ubuntu16.04.1+deb.sury.org+2 (cli) (built: Mar  6 2018 11:10:13) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.1.15-1+ubuntu16.04.1+deb.sury.org+2, Copyright (c) 1999-2018, by Zend Technologies
    with Xdebug v2.6.0, Copyright (c) 2002-2018, by Derick Rethans

packages installed:

cache/adapter-bundle                 1.2.0              A bundle that registers cache implementations as Symfony services supporting PSR-6 and tagging
cache/adapter-common                 1.0.0              Common classes for PSR-6 adapters
cache/array-adapter                  1.0.1              A PSR-6 cache implementation using a php array. This implementation supports tags
cache/cache-bundle                   1.1.0              Symfony 2 bundle providing integration between PSR-6 compliant cache services and the framework. It supports cache f...
cache/chain-adapter                  1.0.0              A PSR-6 cache implementation using chain. This implementation supports tags
cache/hierarchical-cache             1.0.0              A helper trait and interface to your PSR-6 cache to support hierarchical keys.
cache/namespaced-cache               1.0.0              A decorator that makes your cache support namespaces
cache/predis-adapter                 1.0.0              A PSR-6 cache implementation using Redis (Predis). This implementation supports tags
cache/session-handler                1.0.0              An implementation of PHP's SessionHandlerInterface that allows PSR-6
cache/tag-interop                    1.0.0              Framework interoperable interfaces for tags
cache/taggable-cache                 1.0.0              Add tag support to your PSR-6 cache implementation

adapters configuration

cache_adapter:
    providers:
        api:
            factory: "cache.factory.array"
            options: []
            aliases: ["cache.api"]

[julien-maitan]

After upgrading from Symfony 2.8 to symfony 3.4, the problem has gone.