Method AllocatedSizeSlow

tensorflow/core/framework/allocator.h:210–215

Returns the allocated size of the buffer at 'ptr' if known, otherwise returns 0. This method can be called when TracksAllocationSizes() is false, but can be extremely slow. REQUIRES: 'ptr!=nullptr' and points to a buffer previously allocated by this allocator.

  // REQUIRES: 'ptr!=nullptr' and points to a buffer previously
  // allocated by this allocator.
  virtual size_t AllocatedSizeSlow(const void* ptr) const {
    if (TracksAllocationSizes()) {
      return AllocatedSize(ptr);
    }
    return 0;
  }

  // Fills in 'stats' with statistics collected by this allocator.
  virtual absl::optional<AllocatorStats> GetStats() { return absl::nullopt; }