Effect of os clock change on timers
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
I see that on Windows 7 and Matlab 2017a, timer execution can be thrown astray if OS clock jumps back. E.g., if timer callback was to execute at 09:00 and I set OS clock back by 5mins while timer is running, the callback will now execute at 0905 actual time (which is 0900 pc time). However if I advance the clock by 5min, the callback timing is unaffected and correctly triggers at 0900 actual time (which is 8:55pc time). On MacOS with 2022b timing is unaffected by os clock changes in either directions.
Questions:
- Why is the behaviour different across platforms? Would be interesting to know how is it on Linux.
- Why is the behaviour not symmetric across clock jump forwards and backwards on Windows? How do timers work in general?
- How does one ensure external factors affecting OS clock (e.g. daylight savings shifts, windows updates whacking locale settings, etc) don't affect callback schedule on windows systems?
Thanks.
0 commentaires
Réponse acceptée
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Clocks and Timers dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!