GC

1 instance methods 13 class methods

The GC module provides an interface to Ruby’s mark-and-sweep garbage collection mechanism.

Some of the underlying methods are also available via the ObjectSpace module.

You may obtain information about the operation of the GC through GC::Profiler.

Class methods 13

3.4
- GC.config added to allow setting configuration variables on the Garbage Collector. [Feature #20443]
- GC configuration parameter rgengc_allow_full_mark introduced. When false GC will only mark young objects. Default is true. [Feature #20443]
3.2
- Expose need_major_gc via GC.latest_gc_info. GH-6791
3.1
- “GC.measure_total_time = true” enables the measurement of GC. Measurement can introduce overhead. It is enabled by default. GC.measure_total_time returns the current setting. GC.stat[:time] or GC.stat(:time) returns measured time in milli-seconds. [[Feature #10917]]
- GC.total_time returns measured time in nano-seconds. [[Feature #10917]]
3.0
- GC.auto_compact= and GC.auto_compact have been added to control when compaction runs. Setting auto_compact= to true will cause compaction to occur during major collections. At the moment, compaction adds significant overhead to major collections, so please test first! [Feature #17176]