https://github.com/cafjs/caf_profiler

CAF library for performance profiling
https://github.com/cafjs/caf_profiler

Last synced: 5 months ago
JSON representation

CAF library for performance profiling

• Host: GitHub
• URL: https://github.com/cafjs/caf_profiler
• Owner: cafjs
• Created: 2013-01-11T20:59:14.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2023-04-18T22:34:13.000Z (about 3 years ago)
• Last Synced: 2025-09-28T14:52:35.839Z (9 months ago)
• Language: JavaScript
• Size: 32.2 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGES.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE-2.0.txt

Awesome Lists containing this project

README

          
# Caf.js

Co-design cloud assistants with your web app and IoT devices.

See https://www.cafjs.com

## Profiler Library

[![Build Status](https://github.com/cafjs/caf_profiler/actions/workflows/push.yml/badge.svg)](https://github.com/cafjs/caf_profiler/actions/workflows/push.yml)

Library to profile the performance of your app.

It measures latency, throughput, and queue length for CA requests.

For an app called `root-helloworld` access performance data with:

```

    curl https://root-helloworld.cafjs.com/stats

```

and an example reply is:

```

    {"node_10_5_123_118:1000":

         {"requests":{"type":"counter","count":32},

          "pending":{"type":"counter","count":0},

          "stats":{"type":"timer",

               "duration":{"type":"histogram","min":10.468857362866402,

                           "max":25.201154872775078,"sum":520.6768773496151,

                           "variance":10.983277433789388,

                           "mean":16.271152417175472,

                           "std_dev":3.3141028097796523,

                           "count":32,"median":15.921283978968859,

                           "p75":18.803593004122376,"p95":21.699812030419697,

                           "p99":25.201154872775078,"p999":25.201154872775078},

               "rate":{"type":"meter","count":32,"m1":2.9644e-320,

                       "m5":4.612237719003562e-216,

                       "m15":1.2479503887084598e-73,

                       "mean":0.00021508800984629893,"unit":"seconds"}

          }

         }

    }

```

where:

* *requests* Number of of messages received.

* *pending* Number of requests queued.

* *duration* Latency time (in microseconds) to process your requests. See the `metrics` package for details.

* *rate* Number of requests processed per second. Averages over a moving window (1min, 5min, 15 min) using exponential decay.  See the `metrics` package for details.

## Configuration Example

### framework.json

 See {@link module:caf_profiler/plug_profiler}

### ca.json

  None