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Microservice architectures became very popular in the last years. These small services can be developed, tested and deployed more easily than a single complex monolith. Another aspect which favors microservice architectures is their vast horizontal scalability under high load. But it is often overlooked if their performance is really superior compared to monolithic applications. We investigated test strategies on microservices and defined performance metrics in order to compare the performance of a web-based test application implemented as a monolith as well as a microservices re-implementation. The goal is to decide whether the effort was worth to re-implement our audience response system as microservices or not. [ABSTRACT FROM AUTHOR]

Today, majority of Ukrainian mining companies realized that the production yield of suitable for sale blocks using explosions method constitutes not more than 30%. It can be increased up to 80 % by means of using modern equipment for stone extraction, this method is proved to be effective granite extraction. Diamond-sawing rope belongs to such equipment. Techniques for soft and solid rock extraction have significant differences. For example, diamond wire can be used with stone-cutting machines (bar, ring or circular saws) in extraction of soft rocks. Whereas, drilling equipment and gas burners are traditionally used in the hard rock mining. There are a lot of different technological nuances in mining solid rocks by diamond-wire saws. The publication describes the main options for separating natural stone monoliths from an array using the diamond-cable technology in granite quarries of Ukraine. The losses and waste with are created in the result of separation of stone monoliths, from an array using diamond-tipped ropes, are calculated. [ABSTRACT FROM AUTHOR]