IO - DSMFillZeroWrite
Waiting to fill a dynamic shared memory backing file with zeroes.
DSMFillZeroWrite is seen during the creation of Dynamic Shared Memory (DSM) segments. These segments are backed with a file on disk and this call covers the initialization when the memory and file are zero’d out.
If there is significant wait on this event:
- Check excessive for server I/O load
- Check for server disk related errors