v2: linux: add device read performance test

Use 'hdparm -t' to perform timings of block device reads for
benchmark and comparison purposes

Change-Id: I8dbefc4c4b4ba5fb539cd6a3df037ff43666a45a
Signed-off-by: Chase Qi <chase.qi@linaro.org>

2 files changed, 90 insertions, 0 deletions

diff --git a/automated/linux/device-read-perf/device-read-perf.sh b/automated/linux/device-read-perf/device-read-perf.sh
new file mode 100755
index 0000000..dd00a2d
--- /dev/null
+++ b/automated/linux/device-read-perf/device-read-perf.sh
@@ -0,0 +1,60 @@
+#!/bin/sh -e
+
+. ../../lib/sh-test-lib
+OUTPUT="$(pwd)/output"
+RESULT_FILE="${OUTPUT}/result.txt"
+export RESULT_FILE
+
+usage() {
+    echo "Usage: $0 [-d <sda|mmcblk0>] [-s <true|false>]" 1>&2
+    exit 1
+}
+
+while getopts "d:s:" o; do
+  case "$o" in
+    d) device_list="${OPTARG}" ;;
+    s) SKIP_INSTALL="${OPTARG}" ;;
+    *) usage ;;
+  esac
+done
+
+! check_root && error_msg "You need to be root to run this script."
+[ -d "${OUTPUT}" ] && mv "${OUTPUT}" "${OUTPUT}_$(date +%Y%m%d%H%M%S)"
+mkdir -p "${OUTPUT}"
+
+install_deps "hdparm" "${SKIP_INSTALL}"
+
+# Test all block devices if device not specified.
+if [ -z "${device_list}" ]; then
+    if lsblk | egrep "^(sd|hd|mmcblk)[a-z0-9] "; then
+        device_list=$(lsblk \
+                      | egrep "^(sd|hd|mmcblk)[a-z0-9] " \
+                      | awk '{print $1}')
+    else
+        error_msg "Block device NOT found"
+    fi
+fi
+
+# Test run.
+# 'hdparm -t' should be repeated 2-3 times for meaningful result.
+for device in ${device_list}; do
+    echo
+    sum=0
+    for i in $(seq 3); do
+       info_msg "Running iteration $i on /dev/${device}"
+       output_file="${OUTPUT}/${device}-iteration$i-output.txt"
+       hdparm -t /dev/"${device}" > "${output_file}" 2>&1
+       result=$(grep "reads" "${output_file}" | awk '{print $(NF-1)}')
+       units=$(grep "reads" "${output_file}" | awk '{print substr($NF, 1, 2)}')
+
+       # Convert result to MB when units isn't MB.
+       result=$(convert_to_mb "${result}" "${units}")
+
+       echo "Device read timings: ${result} MB/sec"
+       sum=$(echo "${sum} ${result}" | awk '{print $1+$2}')
+    done
+
+    result_avg=$(echo "${sum}" | awk '{print $1/3}')
+    echo "${device} average read timings: ${result_avg}"
+    add_metric "${device}-read-perf" "pass" "${result_avg}" "MB/sec"
+done
diff --git a/automated/linux/device-read-perf/device-read-perf.yaml b/automated/linux/device-read-perf/device-read-perf.yaml
new file mode 100644
index 0000000..d66c787
--- /dev/null
+++ b/automated/linux/device-read-perf/device-read-perf.yaml
@@ -0,0 +1,30 @@
+metadata:
+    format: Lava-Test Test Definition 1.0
+    name: device-read-perf
+    description: "Use 'hdparm -t' to perform timings of block device reads for
+                  benchmark and comparison purposes."
+    maintainer:
+        - chase.qi@linaro.org
+    os:
+        - debian
+        - ubuntu
+        - fedora
+        - centos
+    scope:
+        - performance
+    devices:
+        - mustang
+        - d03
+        - d05
+        - ifc6410
+
+params:
+    # Specify test device. For example: sda
+    DEVICE: ""
+    SKIP_INSTALL: "False"
+
+run:
+    steps:
+        - cd ./automated/linux/device-read-perf/
+        - ./device-read-perf.sh -d "${DEVICE}" -s "${SKIP_INSTALL}"
+        - ../../utils/send-to-lava.sh ./output/result.txt