[quote="sagniknitr, post:3, topic:2655"] Why is it necessary for a intra-process service to share memory ? [/quote] Well, they don't need to share memory, but that's the most efficient thing to do when dealing with intra-process. [quote="sagniknitr, post:3, topic:2655"] I thought services are mainly used to call specific functions of a sub/pub in a node. [/quote] Services may or may not be implemented with pub/sub, but that's up to the middleware implementation. Even if services are implemented with pub/sub, that implementation would occur below where the intra-process optimizations for pub/sub occur. --- [Visit Topic](https://discourse.ros.org/t/intraprocess-communication-with-services/2655/4) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: