Blockchain HowTo

Here we indicates the steps necessary to add a new blockchain to Diablo. To make Diablo compatible with various blockchain implementations, we abstract away the main components of a blockchain. The Diablo benchmark specification interacts with the resulting blockchain abstraction. Let C be the set of clients. A blockchain is modelled as a tuple (E,R,I) where E is the finite set of endpoints that act as blockchain nodes, R is a finite set of resources (e.g., account balance, smart contract state) maintained in the blockchain state, and $I$ is a potentially infinite set of interactions types (e.g. asset transfer, smart contract function invocation) between a client and the blockchain. An interaction event is denoted as a tuple (c,i,r,t). The benchmark specification contains a function M mapping the Secondaries to the blockchain endpoints, a set P^R of resources needed for the test and the interactions.

To add a new blockchain, one has to implement at least one of these interaction types as well as 4 functions that convert the benchmark specification to an executable test program:

• s.create_client(E),
• create_resource(P^r),
• encode(P^i, r, t) and
• trigger(i, r, t).

Since these functions are relatively fine grained, the implementations for the blockchains we test are small sized: between 1,000 and 1,200 LOC of Go.