diff --git a/DRAMSys/simulator/resources/scripts/dramSylva/dramSylva.sh b/DRAMSys/simulator/resources/scripts/dramSylva/dramSylva.sh
index 9bc79dfb..1d173313 100755
--- a/DRAMSys/simulator/resources/scripts/dramSylva/dramSylva.sh
+++ b/DRAMSys/simulator/resources/scripts/dramSylva/dramSylva.sh
@@ -34,21 +34,28 @@
 
 set -x
 
+# DRAMSys simulation files
 simfiles="
 ../../DRAMSys/simulator/resources/simulations/ddr3-example.xml
 ../../DRAMSys/simulator/resources/simulations/ddr3_postpone_test.xml
 "
 
+# Input trace files
 traces="
 ddr3_example.stl
 ddr3_postpone_ref_test_1.stl
 "
 
-clocks="200 1000"
+# Trace player frequencies ('clkMhz' in the tracesetup)
+clocks="
+200
+1000
+"
 
 out_prefix=output
 out_ext=txt
 
+# Test setup (e.g., clone, patch, build)
 function systole {
 	local current_time=$(date "+%Y.%m.%d-%H.%M.%S")
 	local dir="dram.vp.system_$current_time"
@@ -68,18 +75,22 @@ function systole {
 	cd simulator
 }
 
+# Run tests
 function heartbeat {
 	local elf=DRAMSys
+	# for every simulation file
 	for f in $simfiles; do
 
 		sf=$f
 		sfnameext=`basename $f`
 		sfn="${sfnameext%.*}"
 
+		# for every trace file
 		for t in $traces; do
 			replace=">$t</device>"
 			`sed -i.bak 's@>.*<\/device>@'"$replace"'@' $sf`
 
+			# for every trace player clock frequency
 			for c in $clocks; do
 				clk="clkMhz=\"${c}\""
 				`sed -i.bak 's@clkMhz=.*"@'"$clk"'@' $sf`
@@ -91,15 +102,23 @@ function heartbeat {
 
 				of="${out_prefix}_${sfn}_$t_${c}MHz.${out_ext}"
 				printf "$t\n" > $of
+				# a new instance of the program is executed
 				./$elf $sf >> $of &
 				sleep 1
 			done
 		done
+		# wait for the programs running to finish. This is a simple
+		# precaution in order to avoid overloading the system with too
+		# many instances of the program running simultaneously.
 		wait
 	done
+	# wait for all the still running programs to finish. This is really
+	# important for the last iteration since we have to wait the output
+	# files to be ready before parsing them.
 	wait
 }
 
+# Generate a CSV with contents extracted from output files
 function washup {
 	local csvoutfile="output.csv"
 	printf "SimulationFile,TotalEnergy[pJ],AveragePower[mW],TotalTime[ps],AverageBandwidth[Gbps],AverageBandwidthWithoutIdle[Gbps],MaximumBandwidth[Gbps]\n" >> $csvoutfile