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The amount of memory that is needed depends on the number of users, repositories, branches, branching strategy, size of the projects and the size of the .sdf file. A general rule of thumb is that Studio allocates a maximum 12 times the size of the .sdf file in memory. For example, a database of 10MB on disk will take up to 120MB in memory. A well-chosen branching strategy, the functional architecture (as discussed in A maintainable and agile architecture and in DCM Foundation - v4 [editor]) and the system configuration will keep Studio performance optimal.

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Because there are a lot of variables it is not possible to give a general advice which applies to all environments but at the moment our largest customers have a .sdf file that is around 800MB which results in to a maximum of 10GB of memory used. Alternatively, if the teams are developing on completely different and isolated projects it should be considered to setup multiple Studio servers so each team has its own Studio environment.

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From our experience a single Blueriq Runtime could accommodate 10 active modellers business engineers in a development Blueriq modelling environment running on 4GB of memory. When developing modelling with more active developers business engineers it’s possible to increase the size of the memory but keep in mind that a restart of the servers will then take longer because the JVM needs to evict the allocated memory. Alternatively, if the teams are developing on completely different and isolated projects it should be considered to setup multiple Runtime environments so each team has its own Runtime environment and size it accordingly.