[Issue] SwiftOtter-SOP-348 Enable Compiled Configuration Cache for Test execution

[m2-assistant]

This issue is automatically created based on existing pull request: #40239: SwiftOtter-SOP-348 Enable Compiled Configuration Cache for Test execution

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Description (*)

The cache named compiled_config hosts all the di.xml compilation outcomes, including information about plugins, virtual classes etc.

With Magento 2.4.8 upgrade, the performance degradation of tests execution for multiple projects became significant. Mostly, due to the CPU usage.

Turning on compiled_config mitigates the issue, slightly improving the overall Integration Tests performance, without affecting areas such as Configured Object Manager.

2.4.6-p12

Wall Time     20.5s
I/O Wait      3.24s
CPU Time      17.2s
Memory        269MB
Network       1.27s  21.7KB    19rq
SQL           793ms  1871rq

2.4.8-p3

Wall Time  1min 32s
I/O Wait      1.69s
CPU Time   1min 30s
Memory        383MB
Network         n/a     n/a     n/a
SQL           501ms  1746rq

Related Pull Requests

Fixed Issues (if relevant)

1. Integration Tests performance degradation after 2.4.8 upgrade

Manual testing scenarios (*)

1. ...
2. ...

Questions or comments

Contribution checklist (*)

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• README.md files for modified modules are updated and included in the pull request if any README.md predefined sections require an update
• All automated tests passed successfully (all builds are green)