Impact of Meltdown Patches to DSE Performance

Recent security vulnerabilities Meltdown and Spectre pose threats to sensitive information exposure and have led to fixes in operating systems and CPUs that may affect the performance of DataStax Enterprise. The overall performance impact on Linux distributions patched for Meltdown and Spectre was usually below 5% and did not exceed 10%. To determine the impact for your production workload, you will need to run tests in your performance test environment with a workload that matches your production workload.