What is tiered compilation?
PICTURE THIS: DJANGO MVT
Simple meaning
The runtime starts with quick JIT then recompiles hot methods more optimally.
WHY — Performance instead of guessing?
Why interviewers care about Performance:
who only read docs from people who shipped.
and tied to .NET work.
Name the idea, why it exists, then one short example.
End with when you use it and one common pitfall.
STEPS — What happens step by step?
Before you speak the answer, walk the interviewer through these steps:
- 1The runtime starts with
quick JIT then recompiles hot methods more optimally.
- 2Why it exists
It improves warm throughput.
- 3Cold start characteristics change
with settings.
- 4Give an example
One tiny concrete case you can say aloud.
- 5Common mistake
What juniors usually get wrong.
- 6Close
When you pick this over the alternative.
EXAMPLE — See it in action
Here's a short line you can speak, broken into clear beats:
Note: Adapt this scaffold to your own project — keep it under 60–90 seconds.
Key takeaway
The runtime starts with quick JIT then recompiles hot methods more optimally. It improves warm throughput.