<trace>
-<event timestamp="0" name="set_aspects">
+<set_aspects>
<field name="cpu" value="1" type="int" />
-</event>
+</set_aspects>
<event timestamp="1" name="sched_switch">
<field name="cpu" value="0" type="int" />
<field name="prev_comm" value="proc1" type="string" />