from __future__ import unicode_literals import gc import platform from .metrics_core import CounterMetricFamily from .registry import REGISTRY class GCCollector(object): """Collector for Garbage collection statistics.""" def __init__(self, registry=REGISTRY): if not hasattr(gc, 'get_stats') or platform.python_implementation() != 'CPython': return registry.register(self) def collect(self): collected = CounterMetricFamily( 'python_gc_objects_collected', 'Objects collected during gc', labels=['generation'], ) uncollectable = CounterMetricFamily( 'python_gc_objects_uncollectable', 'Uncollectable object found during GC', labels=['generation'], ) collections = CounterMetricFamily( 'python_gc_collections', 'Number of times this generation was collected', labels=['generation'], ) for generation, stat in enumerate(gc.get_stats()): generation = str(generation) 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."""