E02: What a cache miss costs, by region
- Question
- When the nearby data center doesn’t have the page, how much longer does the reader wait?
- Prediction
- About one round trip to Singapore: ~2–5 ms from Singapore, ~160 ms from London, ~230 ms from the US East Coast. Written before the first run.
- Method
- TTFB of the never-cached
/__probeminus TTFB of the cached home page, same probe, seconds apart. - Scripts
- experiments/e02-miss-penalty
Results
Not run yet. The prediction above stands until it is.
What I learned
Not run yet.