Help Center> Relational Database Service> FAQs> Database Monitoring> How Can I Calculate the Memory Usage of an RDS DB Instance?
How Can I Calculate the Memory Usage of an RDS DB Instance?
Click the target RDS DB instance. On the Advanced O&M page, you can view the memory usage of the DB instance.
Figure 1 Instance monitoring
The formula for calculating the memory usage is as follows:
Memory usage = (Total memory – (Available memory + Buffer memory + Cache memory))/Total memory
You can run cat /proc/meminfo to view the total memory, available memory, buffer memory, and cache memory.
Parent topic: Database Monitoring
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