--- wikisrc/tutorials/how_to_enable_and_run_dtrace.mdwn	2017/04/08 21:38:18	1.18
+++ wikisrc/tutorials/how_to_enable_and_run_dtrace.mdwn	2017/10/13 04:38:31	1.21
@@ -128,3 +128,16 @@ in the kernel. Put it in sleep.d:
     
 
 Start the script running (dtrace -s sleep.d) and then execute a "sleep 2" in another shell. 
+
+## Tools included base
+
+Starting with NetBSD-8, on builds where `MKDTRACE=yes` is set, scripts from
+[Brendan Gregg's DTrace toolkit](https://github.com/opendtrace/toolkit/) are installed in base as standard.
+
+At present, the following scripts are installed in `/usr/sbin`: 
+
+    dtruss - An implementation of the truss utility in DTrace which traces the system calls
+    made by a process
+    execsnoop - snoop on execution of processes as they occur
+    opensnoop - snoop on openning of files as they occur
+    procsystime -  print process system call time details.