https://github.com/michalzalecki/test-async-hooks-perf

Compare performance of setting request id with Express context vs async_hooks (cls-hooked)
https://github.com/michalzalecki/test-async-hooks-perf

Last synced: 28 days ago
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Compare performance of setting request id with Express context vs async_hooks (cls-hooked)

• Host: GitHub
• URL: https://github.com/michalzalecki/test-async-hooks-perf
• Owner: MichalZalecki
• Created: 2020-05-02T12:54:36.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2022-12-12T16:03:11.000Z (about 2 years ago)
• Last Synced: 2024-10-25T12:38:06.885Z (3 months ago)
• Language: TypeScript
• Homepage:
• Size: 22.5 KB
• Stars: 0
• Watchers: 2
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        
# test-async-hooks-perf

Very simplistic synthetic benchmark to compare [performance](https://github.com/nodejs/benchmarking/issues/181) of setting Express request context and cls-hooked (async_hooks).

## Build & run

    yarn build

    node ./src/example1

    node ./src/example2

## Benchmark

**Express context (example1)**

    $ wrk -d 30 http://localhost:3000/hello

    Running 30s test @ http://localhost:3000/hello

      2 threads and 10 connections

      Thread Stats   Avg      Stdev     Max   +/- Stdev

        Latency   798.77us  402.65us  10.69ms   95.67%

        Req/Sec     6.61k   640.51     7.22k    96.01%

      396071 requests in 30.10s, 98.21MB read

    Requests/sec:  13158.10

    Transfer/sec:      3.26MB

**cls-hooked (example2)**

    $ wrk -d 30 http://localhost:3000/hello

    Running 30s test @ http://localhost:3000/hello

      2 threads and 10 connections

      Thread Stats   Avg      Stdev     Max   +/- Stdev

        Latency   618.40us  312.55us  12.55ms   85.30%

        Req/Sec     8.41k     0.97k   15.16k    82.86%

      502692 requests in 30.10s, 124.65MB read

    Requests/sec:  16700.19

    Transfer/sec:      4.14MB

**Result**

21% decressed performance on MacBook Pro (15-inch, 2018) using Node v14.1.0. Don't take this number too serious. Just keep it mind that there's a correlation between performance and using async_hooks.