What testing metrics do you possess and apply in practice?

In testing practice, the following metrics are often used:

• Test Coverage — the percentage of code that has been tested. Helps assess the completeness of testing.
• Percentage of successful/failed tests — shows the stability and quality of the product at the current moment.
• Test execution time — important for evaluating the efficiency of the test suite, especially in automation.
• Number of defects found at different stages — helps understand the effectiveness of testing and product quality.
• Average time to fix a defect (MTTR) — a metric for evaluating the error correction process.

These metrics help control product quality and the efficiency of the testing process.