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- import gc
- import platform
- from typing import Iterable
- from .metrics_core import CounterMetricFamily, Metric
- from .registry import Collector, CollectorRegistry, REGISTRY
- class GCCollector(Collector):
- """Collector for Garbage collection statistics."""
- def __init__(self, registry: CollectorRegistry = REGISTRY):
- if not hasattr(gc, 'get_stats') or platform.python_implementation() != 'CPython':
- return
- registry.register(self)
- def collect(self) -> Iterable[Metric]:
- collected = CounterMetricFamily(
- 'python_gc_objects_collected',
- 'Objects collected during gc',
- labels=['generation'],
- )
- uncollectable = CounterMetricFamily(
- 'python_gc_objects_uncollectable',
- 'Uncollectable objects found during GC',
- labels=['generation'],
- )
- collections = CounterMetricFamily(
- 'python_gc_collections',
- 'Number of times this generation was collected',
- labels=['generation'],
- )
- for gen, stat in enumerate(gc.get_stats()):
- generation = str(gen)
- collected.add_metric([generation], value=stat['collected'])
- uncollectable.add_metric([generation], value=stat['uncollectable'])
- collections.add_metric([generation], value=stat['collections'])
- return [collected, uncollectable, collections]
- GC_COLLECTOR = GCCollector()
- """Default GCCollector in default Registry REGISTRY."""
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