A Clinic Flame example
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.


Flame Example

This is an example of a small real world-ish program.

The only setup required after cloning is to run npm install.

There are 3 iterations of a server that responds with a JSON payload containing an millisecond timestamp date, and an ID.

  1. Responds with a payload generated by a sub-optimal function
  2. Responds with a payload generated by an optimal function
  3. Responds with a payload generated by with a smaller call-graph
  4. Responds with a payload generated without a serializer (without JSON.stringify)

Each should produce different Flame results indicating the stack profiles of each.

Upon profiling 1 you should see a very few request per second.

Running 2 you should see much higher requests per second, about 50x faster than 1.

Running 3 you should see around double the amount of requests per second versus 2.

Running 4 you should see roughly a 10% improvement versus 3.

To get started, generate a flame graph for the first server:

clinic flame --on-port 'autocannon localhost:$PORT' -- node 1-server-with-slow-function.js