By acrosman on
Change record status:
Published (View all published change records)
Project:
Introduced in branch:
8.0.x
Issue links:
Description:
Removed a Timer call from the core's DrupalKernel startup process to improve performance.
Before
Drupal 8 core created a timer during page startup to help with debugging and support the devel module.
After
Timer has been removed to improve performance.
To provide this is similar functionality a boot event subscriber or stack middle ware can be implemented instead.
Notes
KernelEvents::REQUEST occurs significantly later in the request and could obscure observable numbers by up to 50%
Impacts:
Module developers
