Performance Optimization Guide: Difference between revisions

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== Database queues ==
== Database queues ==


The database mode is an extension for large Allegro models with multiple CPU sockets and it is disabled by default. This mode is only recommended for Allegro 3500 rev1 and Allegro 5500 rev1. It helps improving very high database loads (millions of open connections and new connections) over multiple CPUs. See [[DB mode]] for more details.
The database mode is an extension for large Allegro models with multiple CPU sockets and it is disabled by default. This mode is only recommended for Allegro 3500 rev1 and Allegro 5500 rev1. The database mode helps to improve the performance for very high database loads. This could happen for millions of open and new connections in combination with NUMA bottlenecks. See [[DB mode]] for more details.


If enabled, you can check if there are message drops between the analyzer threads and the DB threads in the load statistics.
If enabled, you can check if there are message drops between the analyzer threads and the DB threads in the load statistics.
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