Hi,
'some File I/O' every 100ms? Even when excluding your data directory from scanning this may lead to problems!
Modern harddiscs need 10 to 20ms for head positioning (aka seek time). When accessing 2 files in parallel (LabView and Norton!) you need ~40ms just for seeking operations. How much time do you need for your file io? Seeking file, finding write position, writing data, updating file system entries and so on...
I would suggest to redesign file operation!
Best regards,
GerdW
using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019