Variances and correlations in analyzing the performance of DBMSs with different resources. Breaking points of the graphs
Experiment results
DBMS performance (long moving)
Moving variance of DBMS performance
Correlation between performance and DBMS expectations
Results and conclusions
Although the performance indicators for the test VMs differ by orders of magnitude, nevertheless, common features are noticeable:
The presence of a breaking point in the moving dispersion graph. This is especially noticeable for a less productive DBMS.
The presence of a breaking point in the correlation graph between performance and DBMS expectations. Although the nature of the graph is quite different.
A more detailed analysis of the DBMS expectations is needed.