From 80acac0c4b708e1470216eb7e881ea9a8e32c052 Mon Sep 17 00:00:00 2001
From: Marek Marczykowski <marmarek@invisiblethingslab.com>
Date: Sun, 15 Jan 2012 04:42:35 +0100
Subject: [PATCH] dispvm: sleep as long as there is any disk activity (#82)

---
 vm_conf_files/dispvm-prerun.sh | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/vm_conf_files/dispvm-prerun.sh b/vm_conf_files/dispvm-prerun.sh
index 2cc5354..c0453f2 100755
--- a/vm_conf_files/dispvm-prerun.sh
+++ b/vm_conf_files/dispvm-prerun.sh
@@ -10,7 +10,15 @@ for app in $apps ; do
 done
 
 echo "Sleeping..."
-sleep 60
+PREV_IO=0
+while true; do
+	IO=`vmstat -D | awk '/read|write/ {IOs+=$1} END {print IOs}'`
+	if [ $IO -lt $[ $PREV_IO + 50 ] ]; then
+		break;
+	fi
+	PREV_IO=$IO
+	sleep 1
+done
 
 ps ax > /tmp/dispvm-prerun-proclist.log