Performance Comparison of Function-as-a-Service Triggers
Typ
Examensarbete för masterexamen
Program
Publicerad
2021
Författare
Bertilsson, Marcus
Grönqvist, Oskar
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Cloud computing paved the way for how servers are handled and maintained, and
recent developments in cloud computing have established a new paradigm shift to wards serverless computing. Through a subset called Function-as-a-Service (FaaS),
most operational concerns are abstracted away and allows developers to focus en tirely on the code (i.e. functions) to be executed. FaaS functions are triggered by
events (called triggers) and there are many types of triggers offered by each provider.
This thesis studied the latency of three trigger types through a trace-based approach.
The three triggers were HTTP triggers, storage triggers, and queue triggers. To fur ther contrast previous work, the comparisons were also made across two providers,
Amazon Web Services (AWS) and Microsoft Azure. Focus was also put on dis cussions justifying the comparison between two largely different providers and on
the reproducibility of the study. The HTTP trigger performed the best for both
providers, the Queue trigger second-best for AWS and third-best for Azure, and the
Storage trigger third-best for AWS and second-best for Azure. In terms of providers,
both performed relatively similarly in terms of mean delay but Microsoft Azure had
significantly more extreme outliers compared to Amazon Web Services. In conclu sion, the study performed in this thesis found that the choice of service and provider
can greatly affect a system’s performance and can, in extension, affect the usage of
cloud services.
Beskrivning
Ämne/nyckelord
Computer science , engineering , master thesis , serverless , cloud , FaaS , trigger , performance