ROSCURRENT2026-05-05

ipc_shared_ptr: A Publish/Subscribe-Aware Smart Pointer for Cross-Process Object Lifetime Management

Takahiro Ishikawa-Aso, Atsushi Yano, Koichi Imai, Takuya Azumi, Shinpei Kato

This paper solves the hard problem of zero-copy message passing in ROS 2 by providing a smart pointer that safely manages object lifetimes across processes without expensive global reference counting. For developers building large-scale Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. systems like Autoware, this means 3x lower Simulation & Sim-to-RealLatencyDelay between input, computation, and action. and dramatically simpler debugging of cross-process memory management.

THE PROBLEM

This paper focuses on ros. This paper solves the hard problem of zero-copy message passing in ROS 2 by providing a smart pointer that safely manages object lifetimes across processes without expensive global reference counting. For developers building large-scale Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. systems like Autoware, this means 3x lower Simulation & Sim-to-RealLatencyDelay between input, computation, and action. and dramatically simpler debugging of cross-process memory management. Read the paper by tracking the Core ConceptsTaskThe job the robot is supposed to complete, such as pick-and-place, navigation, or drawer opening. definition, the Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. or data assumptions, and the evidence that supports the claimed improvement.

HOW IT WORKS

1

Task framing

The paper frames the work as ros. Start here because it defines what success means and which assumptions the rest of the method inherits.

2

Core method

This paper solves the hard problem of zero-copy message passing in ROS 2 by providing a smart pointer that safely manages object lifetimes across processes without expensive global reference counting. For developers building large-scale Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. systems like Autoware, this means 3x lower Simulation & Sim-to-RealLatencyDelay between input, computation, and action. and dramatically simpler debugging of cross-process memory management. When reading the method section, identify the inputs, the learned or engineered representation, and the Core ConceptsActionA command the robot sends to its motors, controller, or low-level system. or prediction produced by the system.

3

Data and supervision

For robotics work, the data story is part of the method: check whether the system depends on Imitation & Reinforcement LearningTeleoperation (teleop)A human remotely controlling the robot, often to collect demonstrations., Simulation & Sim-to-RealSimulationA virtual environment where robots can be trained or tested., internet video, human labels, or Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. rollouts.

4

Evaluation evidence

The paper should be judged through its Simulation & Sim-to-RealEvaluationMeasuring how well a robot system performs. protocol: what data is used, what Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. or simulator is tested, and which Evaluation & ResearchBaselineA reference method used for comparison. comparisons support the claim. Look for the gap between the headline result and the Simulation & Sim-to-RealDeploymentPutting the trained system on a real robot. setting you would actually care about.

FIGURES

KEY RESULTS

Main contributionConceptual contribution

This paper solves the hard problem of zero-copy message passing in ROS 2 by providing a smart pointer that safely manages object lifetimes across processes without expensive global reference counting. For developers building large-scale Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. systems like Autoware, this means 3x lower Simulation & Sim-to-RealLatencyDelay between input, computation, and action. and dramatically simpler debugging of cross-process memory management.

WHY DEVELOPERS SHOULD CARE

This paper solves the hard problem of zero-copy message passing in ROS 2 by providing a smart pointer that safely manages object lifetimes across processes without expensive global reference counting. For developers building large-scale Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. systems like Autoware, this means 3x lower Simulation & Sim-to-RealLatencyDelay between input, computation, and action. and dramatically simpler debugging of cross-process memory management.

LIMITATIONS

The main limitation to check is whether the claimed behavior holds outside the paper's reported setup. That means testing across different Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. embodiments, scenes, objects, and data distributions.

WHAT COMES NEXT

The practical next step is independent reproduction with clear baselines, ablations, and stress tests. For a developer, the useful follow-up is to map the paper's ros assumptions onto a concrete Core ConceptsRobotA physical system with sensors and actuators that can observe the world and take actions. stack, then test the smallest version of the method that could run end to end.

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