<procedure id="systemtapsession">
<title>SystemTap Session</title>
- <step><para>SystemTap first translates the script to C, running the system C compiler to create a kernel module from it.</para></step>
+
+ <step><para>First, SystemTap checks the script against the existing tapset library (normally in <filename>/usr/share/systemtap/tapset/</filename> for any tapsets used.</para></step>
+
+ <step><para>SystemTap then translates the script to C, running the system C compiler to create a kernel module from it.</para></step>
<step><para>SystemTap loads the module, then enables all the probed events by "hooking" those events into the kernel.</para></step>