From 9a4470fd16c413bd17564ee2873eae211d3aadde Mon Sep 17 00:00:00 2001
From: Pradyumna Kaushik <pkaushi1@binghamton.edu>
Date: Fri, 5 Oct 2018 22:49:23 -0400
Subject: [PATCH] Description for scheduling policy switch trace.

---
 .../withSpsEnabled/SchedulingPolicySwitchTrace.md | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/docs/data/withSpsEnabled/SchedulingPolicySwitchTrace.md b/docs/data/withSpsEnabled/SchedulingPolicySwitchTrace.md
index e69de29..b37661f 100644
--- a/docs/data/withSpsEnabled/SchedulingPolicySwitchTrace.md
+++ b/docs/data/withSpsEnabled/SchedulingPolicySwitchTrace.md
@@ -0,0 +1,15 @@
+# Scheduling Policy Switch Trace
+
+Every time _Elektron_ switches to a different scheduling policy, the name of the scheduling policy and the time at which the switch took place is logged.
+
+The logs are written to a file named _\<logFilePrefix\>\_\<timestamp\>_schedPolSwitch.log_, where
+* _logFilePrefix_ is the prefix provided using the `-logPrefix` option.
+* _timestamp_ corresponds to the time when _Elektron_ was run.
+
+The format of the data logged is as shown below.
+```
+<yyyy/mm/dd> <hh:mm:ss> <scheduling policy name>
+```
+
+_Note: The names of the scheduling policies can be found [here](https://gitlab.com/spdf/elektron/blob/master/schedulers/store.go#L14)_
+