Measuring the potential overhead of PMM Client on MySQL workloads

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Having good historial metrics monitoring in place is critical for properly operating, maintaining and troubleshooting database systems, and Percona Monitoring and Management is one of the options we recommend to our clients for this. One common concern among potential users is how using this may impact their database’s performance. As I could not find any conclusive information about this, I set out to do some basic tests and this post shows my results. To begin, let me describe my setup. I used the following Google Cloud instances: One 4 vCPU instance for the MySQL server One 2 vCPU instance...