Place trigger for scheduling overhead benchmark.

1 files changed, 5 insertions, 3 deletions

diff --git a/include/linux/trace.h b/include/linux/trace.h
index 0d05e6eda2..e241ed45be 100644
--- a/include/linux/trace.h
+++ b/include/linux/trace.h
@@ -30,12 +30,14 @@ asmlinkage void save_timestamp(unsigned long event);
  * =========================
  * 
  * In order to process the trace files with a common tool, we use the following
- * convention to measure execution times. The start time of a code segment has
- * an even event ID, the corresponding end time has the consecutive odd ID.
+ * convention to measure execution times: The end time id of a code segment is
+ * always the next number after the start time event id.
  */
 
 #define TS_SCHED_START                  TIMESTAMP(100)
-#define TS_SCHED_END                    TIMESTAMP(101)
+#define TS_SCHED_END                    TIMESTAMP(101)
+#define TS_CXS_START                    TIMESTAMP(102)
+#define TS_CXS_END                      TIMESTAMP(103)
 
 #define TS_TICK_START                   TIMESTAMP(110)
 #define TS_TICK_END                     TIMESTAMP(111)