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Document that we don't recommend multiple judgedaemons on a single machine #3021

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Jul 7, 2025
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Document that we don't recommend multiple judgedaemons on a single machine #3021

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7 changes: 5 additions & 2 deletions doc/manual/config-advanced.rst
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Expand Up @@ -338,8 +338,11 @@ systemd, then edit the ``domjudge-judgehost.target`` unit file and add
more judgedaemons there.

Although each judgedaemon process will be bound to one single CPU
core, shared use of other resources such as disk I/O might
still have effect on run times.
core, shared use of other resources such as disk I/O typically
still has an effect on run times.
Therefore we recommend running a single judgedaemon per physical
machine for contests where precise timing is important.


Multi-site contests
-------------------
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2 changes: 2 additions & 0 deletions doc/manual/install-judgehost.rst
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Expand Up @@ -19,6 +19,8 @@ System requirements
* A TCP/IP network which connects the DOMserver and the judgehosts.
The machines only need HTTP(S) access to the DOMserver.

We recommend running a single judgedaemon per physical machine.
For more details see the section :ref:`multiple-judgedaemons`.

.. _judgehost_software:

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