Redis performance

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Data-driven Redis performance

A simple Redis performance tuning can speed your application significantly. Before tuning, however, you need actionable data about your database's current performance.

A Redis performance checklist before tuning could look like this:

  • Verify your hosts’ health by looking at server data
  • Ensure that your virtualization works fine by analyzing virtual machine metrics
  • Optimize database access with application data
  • Analyze the network impact of database communication with network data
Redis performance metrics

Server data tells about your hosts’ health

By checking CPU, memory, and disk space metrics you make sure your Redis processes have sufficient resources available.

  • CPU - Redis will deliver better performance on faster CPUs. When monitoring virtual machines, also monitor the virtual host that the machines run on. Numbers like CPU ready time are of particular importance.

  • Page faults per seconds - Having thousands of page faults per second indicates that your hosts are out of memory.

  • Disk space - NoSQL databases eat up a lot more disk space than you would expect. For an optimal Redis performance make sure you have lots of disk space available on your hard drive.

Redis CPU metrics
Redis memory metrics
Redis disk metrics

Know which commands affect database performance

Knowing which services access your Redis is vital for finding database performance bottlenecks. If there is a single service that’s suffering from bad database response times, dig deeper into that service’s metrics to find out what’s causing the problem.

Take a deeper look into the service’s communication with the database and find out which commands affect the database performance the most.

Services accessing Redis
Redis service backtrace

Verify your app’s database connection

Even if the way you query your database is perfectly fine, you may still experience inferior database performance. Make sure if your application’s database connection is correctly sized.

Redis connections

Keep an eye on network metrics

If a database performance issue suddenly appears, process level visibility comes in handy in identifying a failing component.

Redis process metrics

Optimize your Redis performance with Dynatrace

Dynatrace monitors and analyzes the activity of your Redis databases across all platforms, providing visibility down to individual database statements.

Key benefits:

  • Auto-detect your Redis databases
  • Visualize how apps use your database
  • See detailed metrics for every single Redis database statement
  • Directly relate Redis performance metrics to queries

Your first 15 days of Redis monitoring are on us

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