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#!/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"
return
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
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