ubuntu: Add test to get Device timings of block devices.

- Dynamically gets all the block devices like sata, sd-card, etc,.
- Perform device timing operations on each device.

Test results are at https://validation.linaro.org/scheduler/job/206365

Change-Id: I861474c9409aa95f126d1b307bd49962702e2031
Signed-off-by: hnaradla <hanumantha.naradla@linaro.org>
Signed-off-by: Nicolas Dechesne <nicolas.dechesne@linaro.org>

1 files changed, 81 insertions, 0 deletions

diff --git a/ubuntu/scripts/device_read_perf.sh b/ubuntu/scripts/device_read_perf.sh
new file mode 100755
index 0000000..4ac0d5e
--- /dev/null
+++ b/ubuntu/scripts/device_read_perf.sh
@@ -0,0 +1,81 @@
+#!/bin/sh
+#
+# Test device timings for block devices on ubuntu
+#
+# Copyright (C) 2014, Linaro Limited.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# Author:  Hanumantha Naradla <hanumantha.naradla@linaro.org>
+
+if [ `whoami` != 'root' ] ; then
+    echo "You must be the superuser to run this script" >&2
+    exit 1
+fi
+
+. include/sh-test-lib
+
+## Test case definitions
+# Test device read timings (hdparm -t) and cache read timings (hdparm -T)
+
+test_func(){
+    test_cmd=$1
+    c_read=0
+    p_read=0
+    t_read=0
+
+    for i in 1 2 3;
+    do
+        echo ""
+        echo "device read timings: Iteration $i"
+        # Perform timings of cache reads
+        hdparm -T /dev/$test_cmd
+        # Perform timings of device reads in MB/sec
+        c_read=(`hdparm -t /dev/$test_cmd | grep 'reads' | awk -v col1=11 '{print $col1}'`)
+        if [ $c_read ]
+        then
+            echo "Device read timings: $c_read MB/sec"
+        else
+            echo "test_case_id:device_read_perf-$test_cmd units:none measurement:0 result:fail"
+            exit 0
+        fi
+        t_read=(`echo $t_read $c_read | awk '{print $1+$2}'`)
+    done
+        # Get average of device reads in MB/sec
+        t_read=(`echo $t_read | awk '{print $1/3}'`)
+        echo "Average device read timings: $t_read MB/sec"
+        echo "test_case_id:device_read_perf-$test_cmd units:MBperSecond measurement:$t_read result:pass"
+}
+
+# Get total block devices
+disk_count=(`lsblk | grep disk -c`)
+
+if [ $disk_count -ge 1 ]
+then
+    echo "total block devices are $disk_count"
+else
+    echo "there are no block devices"
+    echo "test_case_id:device_read_perf-* units:none measurement:0 result:skip" 
+    exit 0
+fi
+
+# Test device timings for all devices
+for i in `lsblk | grep 'disk' | awk -v col1=1 '{print $col1}'`
+do
+    test_func $i
+done
+
+# Clean exit so lava-test can trust the results
+exit 0