Hi, I'm newbe in ethercat and real-time world.
I installed etherlab master(1.5-stable) with xenomai environment on my linux box. And I tried to latency test of real-time task with etherlab master API. I also did it without a ehterlab master API. A stress is "while true;do ls -lR / > /tmp/list; done & > /dev/null" shell script; It's called repeatedly by bash shell script and making hard disk load. When I use etherlab API, the latest latency of cyclic task is above a 500us. But when I don't use etherlab API, latency is about "70us". According test result, etherlab API or EtherCAT-capable network device is interrupted by hard disk access on my system. I think hard disk access is making a huge latency. And other devices also also become a source of latency on my system. If anyone has any advice could you please leave your comment? Best regards. Donggu Kang. _______________________________________________ etherlab-users mailing list etherlab-users@etherlab.org http://lists.etherlab.org/mailman/listinfo/etherlab-users