The current release of kvaser_interface suffers from very slow performance on reading and writing. The majority of this performance degradation comes from checking the on-bus status through the linuxcan API on every read and write. This PR removes the code to check the on-bus status with linuxcan every time, replacing it with a local status variable which is modified when the on-bus state changes. This does not fix the performance problem 100% but is a major improvement (approximately 200% reduction in latency).
The current release of
kvaser_interfacesuffers from very slow performance on reading and writing. The majority of this performance degradation comes from checking the on-bus status through thelinuxcanAPI on every read and write. This PR removes the code to check the on-bus status withlinuxcanevery time, replacing it with a local status variable which is modified when the on-bus state changes. This does not fix the performance problem 100% but is a major improvement (approximately 200% reduction in latency).