Diferentes protocolos de controle de concorrência impactam o desempenho do banco de dados, dependendo do perfil da carga de trabalho. Sem conhecimento prévio desta carga e suas mudanças, a decisão na escolha de um protocolo se torna desafiadora. Para tanto, criamos o FLEXMVCC, que integra dois protocolos de controle de concorrência multi-versão compatíveis, um otimista e um pessimista, capaz de se adaptar conforme as mudanças na carga de trabalho. Experimentos preliminares mostram que a troca entre protocolos é viável e representa um ganho de desempenho em relação aos protocolos estáticos.
Unit tests are one of the most widely used tools to assure a minimal level of quality and compliance during development. However, they are not used in many projects where development takes place at low-level contexts. The main reason is that unit test development itself demands more time and becomes expensive in this context and tools that assist test creation are rare or absent. In UEFI development this scenario matches the reality of most teams and unit testing as well as other testing techniques are often not used. To address this fault we propose UTTOS, a tool that parses EDKII build configuration files, mocks the UEFI-specific functions for C development and enables UEFI test suite code to run in the operating system. We show that UTTOS is able to run the test suit in the operating system and save development time.
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