1 files changed, 49 insertions, 0 deletions
diff --git a/automated/linux/cyclictest/cyclictest.sh b/automated/linux/cyclictest/cyclictest.sh
new file mode 100755
index 0000000..7586a84
--- /dev/null
+++ b/automated/linux/cyclictest/cyclictest.sh
@@ -0,0 +1,49 @@
+#!/bin/sh -e
+# cyclictest measures event latency in Linux kernel by measuring the amount of
+# time that passes between when a timer expires and when the thread which set
+# the timer actually runs.
+
+# shellcheck disable=SC1091
+. ../../lib/sh-test-lib
+
+OUTPUT="$(pwd)/output"
+LOGFILE="${OUTPUT}/cyclictest.txt"
+RESULT_FILE="${OUTPUT}/result.txt"
+
+PRIORITY="99"
+INTERVAL="10000"
+THREADS="1"
+LOOPS="10000"
+
+usage() {
+    echo "Usage: $0 [-p priority] [-i interval] [-t threads] [-l loops]" 1>&2
+    exit 1
+}
+
+while getopts ":p:i:t:l:" opt; do
+    case "${opt}" in
+        p) PRIORITY="${OPTARG}" ;;
+        i) INTERVAL="${OPTARG}" ;;
+        t) THREADS="${OPTARG}" ;;
+        l) LOOPS="${OPTARG}" ;;
+        *) usage ;;
+    esac
+done
+
+! check_root && error_msg "Please run this script as root."
+[ -d "${OUTPUT}" ] && mv "${OUTPUT}" "${OUTPUT}_$(date +%Y%m%d%H%M%S)"
+mkdir -p "${OUTPUT}"
+
+# Run cyclictest.
+detect_abi
+# shellcheck disable=SC2154
+./bin/"${abi}"/cyclictest -p "${PRIORITY}" -i "${INTERVAL}" -t "${THREADS}" \
+    -l "${LOOPS}" | tee "${LOGFILE}"
+
+# Parse test log.
+tail -n "${THREADS}" "${LOGFILE}" \
+    | sed 's/T:/T: /' \
+    | awk '{printf("t%s-min-latency pass %s us\n", $2, $(NF-6))};
+           {printf("t%s-avg-latency pass %s us\n", $2, $(NF-2))};
+           {printf("t%s-max-latency pass %s us\n", $2, $NF)};'  \
+    | tee -a "${RESULT_FILE}"