Verify the DTrace Installation
Check that DTrace installed to the correct location and verify the DTrace version.
Run ls -lah /usr/sbin/dtrace to verify that the DTrace utility is present:
ls -lah /usr/sbin/dtrace
Run the dtrace -V command to display the version number.
dtrace -V
DTrace 2.0.0 [Pre-Release with limited functionality]
dtrace: Oracle D 2.0