Load Testing · Senior · Question 50 of 76
Production cache hit ratio is 85%; in the test it is 99%. What follows?
- 1The test is too optimistic: make the data and key spread realistic
- 2Cache ratio has no effect on backend load
- 3The test is better than production, so its results are safe
Show the answer
Correct answer: The test is too optimistic: make the data and key spread realistic
Explanation
Hit ratio drives backend load. A test with 1% misses puts ~15× less load on the DB than production does at the same RPS.