What is Hot Path?
The code path that runs most frequently or handles the most critical operations in your application.
Why It Matters
Optimising hot paths gives the biggest performance improvements because they affect the most users or requests.
Real-World Example
The product listing page that handles 80% of all traffic is the hot path that deserves the most optimisation effort.
“Understanding terms like Hot Path matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”
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Related Terms
Cache
A temporary storage that keeps copies of frequently accessed data for faster retrieval
Latency
The time delay between a request and its response
CDN
A network of servers around the world that stores copies of your content closer to users
Throttling
Slowing down requests instead of blocking them entirely when limits are approached
Throughput
The amount of work your system can handle in a given time period
Tree Shaking
Automatically removing unused code from your final bundle to make it smaller.