Ran into this at work last week. A team wanted to add an in-mem cache to speed things up. However, they have no way nor plan to measure its effectiveness. I ask

Ran into this at work last week. A team wanted to add an in-mem cache to speed things up. However, they have no way nor plan to measure its effectiveness. I asked how they will know the cache hit ratio or otherwise know how the queue is working and they pushed back that such monitoring would be work they weren't planning. Bananas.