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Joel Sherrill
dce430bb69
The CLOCK_DRIVER_USE_FAST_IDLE configure option is implemented in the shared clock driver implementation. Unfortunately, the spec files scattered the yaml to enable it for a specific BSP. This change adds the shared file spec/build/bsps/optclkfastidle.yml which is now the only place the CLOCK_DRIVER_USE_FAST_IDLE is specified. That file includes a master list of BSPs which are known to be able to run on simulators that are slow enough to benefit from this option. As a point of information, the entire riscv BSP family can run on both spike and qemu. None had the option do use fast idle. With this option enabled, the time taken for a full test run on spike for rv32i and rv64imadfc dropped by ~45%.
Real-Time Executive for Multiprocessing Systems
RTEMS is a real-time executive (kernel) which provides a high performance environment for embedded applications with the following features:
- Standards based user interfaces.
- Multitasking capabilities.
- Homogeneous and heterogeneous multiprocessor systems.
- Event-driven, priority-based, preemptive scheduling.
- Optional rate monotonic scheduling.
- Intertask communication and synchronisation.
- Priority inheritance.
- Responsive interrupt management.
- Dynamic memory allocation.
- High level of user configurability.
- Open source with a friendly user license.
Project git repositories are located at:
Online documentation is available at:
RTEMS Doxygen for CPUKit:
RTEMS POSIX 1003.1 Compliance Guide:
RTEMS Mailing Lists for general purpose use the users list and for developers use the devel list.
The version number for this software is indicated in the VERSION file.