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Nasal GC Musings: Difference between revisions
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=== Understanding GC internals === | === Understanding GC internals === | ||
Additionally, it would be beneficial to improve the garbage collection mechanism itself, to provide better diagnostics and metrics at runtime. This would allow end-users to more easily understand if certain issues are related to Nasal or | Additionally, it would be beneficial to improve the garbage collection mechanism itself, to provide better diagnostics and metrics at runtime. This would allow end-users to more easily understand if certain issues are related to Nasal or its garbage collector, and to troubleshoot and debug performance problems more effectively. | ||
In FlightGear, the Nasal scripting language is used to create scripts that can be run inside the simulator. These scripts are executed via callbacks that are triggered by timers and listeners, which can cause the garbage collector to be triggered in a non-deterministic fashion. This means that the garbage collector may run at different times and in different ways depending on the specific actions and events that are happening in the simulator. | In FlightGear, the Nasal scripting language is used to create scripts that can be run inside the simulator. These scripts are executed via callbacks that are triggered by timers and listeners, which can cause the garbage collector to be triggered in a non-deterministic fashion. This means that the garbage collector may run at different times and in different ways depending on the specific actions and events that are happening in the simulator. | ||
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Overall, the non-deterministic execution of the garbage collector in FlightGear can make it difficult to reproduce and debug issues related to its performance and behavior. This can be a challenge for script developers and end-users, and it may require careful use of profilers | Overall, the non-deterministic execution of the garbage collector in FlightGear can make it difficult to reproduce and debug issues related to its performance and behavior. This can be a challenge for script developers and end-users, and it may require careful use of profilers | ||
Improving Nasal tooling would be a good idea because it would allow developers to more easily troubleshoot and debug issues in FlightGear. Nasal is integrated into FlightGear in such a way that problems can span multiple components of the simulator, making it difficult to understand and diagnose issues. By providing tools such as a profiler, debugger, and code optimizer, developers would be able to more easily identify and address issues. In addition, exposing garbage collector internals via properties would allow developers to gain a better understanding of how Nasal is working within FlightGear, and potentially provide a means of improving the efficiency of the scripting language. Overall, improving Nasal tooling would benefit FlightGear by making it easier for developers to identify and resolve issues, leading to a better user experience for those using the flight simulator. | |||
There are several potential benefits to providing tooling that is integrated with FlightGear as a whole. One benefit is that it would allow developers to more easily reproduce and understand issues that can only be identified or properly analyzed when running inside the FlightGear environment. This is because the tooling would be able to access the full range of FlightGear's functionality and components, which would enable developers to more accurately diagnose and troubleshoot issues. | |||
Another potential benefit of integrating tooling with FlightGear is that it would allow developers to more easily identify issues that span multiple architectural layers of FlightGear/SimGear. For example, if a problem is caused by interactions between the scripting layer and the property tree, having tooling that is integrated with FlightGear would allow developers to more easily analyze and understand these interactions. This would allow for more efficient and effective troubleshooting and debugging. | |||
=== Frame Spacing and Latency === | === Frame Spacing and Latency === | ||