Module accounting_allocator

Track allocations and memory use.

Structs

• AccountingAllocator
  Install this as the global allocator to get memory usage tracking.
• AtomicCountAndSize 🔒
• GlobalStats 🔒
• TrackingStatistics

Constants

• IS_THREAD_IN_ALLOCATION_TRACKER 🔒
  Used to prevent re-entrancy when tracking allocations.
• MAX_CALLSTACKS 🔒
• MEDIUM_SIZE 🔒
  Allocations smaller than are stochastically sampled.
• SMALL_SIZE 🔒
  Only track allocations of at least this size.

Statics

• BIG_ALLOCATION_TRACKER 🔒
  Statistics about extant allocations larger than MEDIUM_SIZE.
• GLOBAL_STATS 🔒
• MEDIUM_ALLOCATION_TRACKER 🔒
  Statistics about some extant allocations larger than SMALL_SIZE but smaller than MEDIUM_SIZE.

Functions

• global_allocs
  Total number of live allocations, and the number of live bytes allocated as tracked by AccountingAllocator.
• is_tracking_callstacks
  Are we doing (slightly expensive) tracking of the callstacks of large allocations?
• note_alloc 🔒
• note_dealloc 🔒
• set_tracking_callstacks
  Should we do (slightly expensive) tracking of the callstacks of large allocations?
• tracking_stats
  Gather statistics from the live tracking, if enabled.
• turn_on_tracking_if_env_var
  Turn on callstack tracking (slightly expensive) if a given env-var is set.