=== timeout_heap benchmark ===
Operations: 100 each

Push 100 items:
  Total time: 0.001 ms
  Average per push: 0.014 us
  Heap size after: 100

Cancel 50 items:
  Total time: 0.001 ms
  Average per cancel: 0.022 us
  Heap size: 100 (deleted marked)

Pop 50 items:
  Total time: 0.002 ms
  Average per pop: 0.049 us
  Heap size after: 0

=== Summary ===
Push:  0.001 ms total, 0.014 us/op
Cancel: 0.001 ms total, 0.022 us/op
Pop:   0.002 ms total, 0.049 us/op

Total operations: 250