8 methods override CacheBackendInterface::garbageCollection()
- ApcuBackend::garbageCollection in core/
lib/ Drupal/ Core/ Cache/ ApcuBackend.php  - Performs garbage collection on a cache bin.
 - BackendChain::garbageCollection in core/
lib/ Drupal/ Core/ Cache/ BackendChain.php  - Performs garbage collection on a cache bin.
 - CacheBackendDecorator::garbageCollection in core/
modules/ system/ tests/ modules/ performance_test/ src/ Cache/ CacheBackendDecorator.php  - Performs garbage collection on a cache bin.
 - ChainedFastBackend::garbageCollection in core/
lib/ Drupal/ Core/ Cache/ ChainedFastBackend.php  - Performs garbage collection on a cache bin.
 - DatabaseBackend::garbageCollection in core/
lib/ Drupal/ Core/ Cache/ DatabaseBackend.php  - Performs garbage collection on a cache bin.
 - MemoryBackend::garbageCollection in core/
lib/ Drupal/ Core/ Cache/ MemoryBackend.php  - Performs garbage collection on a cache bin.
 - NullBackend::garbageCollection in core/
lib/ Drupal/ Core/ Cache/ NullBackend.php  - Performs garbage collection on a cache bin.
 - PhpBackend::garbageCollection in core/
lib/ Drupal/ Core/ Cache/ PhpBackend.php  - Performs garbage collection on a cache bin.
 
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