HAProxy Enterprise Documentation 1.8r2


The multi-threading model is a feature that allows HAProxy Enterprise to start multiple threads within a single process. With the multi-threading model, you benefit from the following features:

  • Information is shared between threads, such as configuration parameters, statistics, limits, and rates

  • Less health checking traffic

  • Runtime API commands become simpler compared with running in multi-process mode (e.g. nbproc) because you do not need to issue commands against multiple processes or script loops

Configure multi-threading

To change the number of threads HAProxy Enterprise runs, set the option nbthread in the global configuration section. Optionally, map threads to CPU cores using the configuration directive cpu-map.

   nbthread 4

   # bind all threads of the first process on the first 4 CPUs
   cpu-map 1/all 0-3

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