Benchmarks.md

Benchmarks

Below benchmark results were derived using the autocannon HTTP benchmarking utility. The benchmark source code is included in this repository in the benchmarks folder.

CLI Command

This command simulates a high stress situation where 2500 unique visitors visit your website at the same time and their browsers on average make 4 pipelined requests per TCP connection sustained for 30 seconds.

autocannon -c 2500 -d 30 -p 4 http://HOST:PORT/benchmark

Environment Specifications

• Machine: Ubuntu 21.04 | 1 vCPU | 1GB Mem | 32GB Nvme | Vultr Compute Instance @ $6/Month
• Node: v18.0.0
• Method: Two rounds; one to warm-up, one to measure
• Response Body: Small HTML page with a dynamic timestamp generated with Date. See more in HTML Test.
• Linux Optimizations: None.

Benchmark Results

Note! these benchmarks should be run over network for proper results as running these benchmarks on localhost significantly strains the C++ to Javascript communications and class initializations performance due to near no latency in request times which is unrealistic for real world scenarios.

	Version	Requests/s	Latency	Throughput/s
uWebsockets.js	20.8.0	196,544	464 ms	102 Mb/s
HyperExpress	6.0.0	195,832	469 ms	101 Mb/s
Fastify	3.28.0	13,329	746 ms	8 Mb/s
Express	4.17.3	5,608	1821 ms	3.7 Mb/s

Running Benchmarks

To run benchmarks in your own environments, you may follow the steps below.

1. Clone the HyperExpress repository to your machine.
2. Run npm install in the root of the HyperExpress directory.
3. Run the index.js file in the /benchmarks directory to start all webservers on neighboring ports.
4. You may run the autocannon command provided above yourself manually from any remote instance or you may customize and run the benchmarks.sh file to receive benchmark results for each webserver.