#Performance

OpenStack Cinder Performance Testing Approach Part 1 of 2

Published at February 13, 2019 ·  8 min read

NOTE: This post was initially written a few years ago, so something could be outdated. What is Cinder High-level Cinder Architecture Cinder contains 3 main components: Cinder API (c-api), Cinder Scheduler (c-sched) and Cinder Volume (c-vol). Cinder Backup is a bit different and will be described later. All Cinder components communicate between each other using RPC protocol. In our case, it’s an AMPQ protocol with RabbitMQ backend. All data is stored in the database (MySQL DB)....


I don't believe performance tests results

Published at February 9, 2019 ·  2 min read

Performance testing is one of the most complex and hard types of testing. It’s really hard to make fair tests which fit everyone. There are a lot of things which can impact the measurement result. That’s why I don’t believe any particular test result which I found on the Internet. If you are a software or hardware vendor, it’s a big temptation to test only your strengths. Even if you want to get fair results, you can miss something during the testing or don’t have enough results to see a performance impact....


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