Scalable and accelerated function as a service calling architecture

Examples described herein relate to requesting execution of a workload by a next function with data transport overhead tailored based on memory sharing capability with the next function. In some examples, data transport overhead is one or more of: sending a memory address pointer, virtual memory address pointer or sending data to the next function. In some examples, the memory sharing capability with the next function is based on one or more of: whether the next function shares an enclave with a sender function, the next function shares physical memory domain with a sender function, or the next function shares virtual memory domain with a sender function. In some examples, selection of the next function from among multiple instances of the next function based on one or more of: sharing of memory domain, throughput performance, latency, cost, load balancing, or service legal agreement (SLA) requirements.