node package manager


Performance profiling of CAF

CAF (Cloud Assistant Framework)

Co-design permanent, active, stateful, reliable cloud proxies with your web app.


Library to profile the performance of your app.

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

Performance data is accessible using HTTP GET requests.

If your app is called foo-helloworld the url to access latency and throughput info (using GET) is:

and an example reply:



  • requests Number of of messages received.
  • pending Number of requests queued.
  • duration Latency time in microsec 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.
         "module": "caf_profiler#plug",
         "name": "profiler",
         "description": "Performance profiling of CA requests\n Properties:\n",
         "env" : {