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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# sched-migration python test
set -e
shelldir=$(dirname "$0")
# shellcheck source=lib/setup_python.sh
. "${shelldir}"/lib/setup_python.sh
if ! "$PYTHON" -c 'import perf' > /dev/null 2>&1; then
echo "Skipping test, perf python module not found"
exit 2
fi
script_dir="$(dirname "$0")/../../python"
script_path="${script_dir}/sched-migration.py"
if ! perf check feature -q libtraceevent > /dev/null 2>&1; then
echo "Skipping test, libtraceevent is disabled"
exit 2
fi
if [ ! -f "$script_path" ]; then
echo "Skipping test, sched-migration.py not found at $script_path"
exit 2
fi
err=0
temp_data=""
temp_out=""
cleanup() {
rm -f "${temp_data}" "${temp_out}"
}
trap 'cleanup' EXIT TERM INT
temp_data=$(mktemp /tmp/perf.data.XXXXXX)
temp_out=$(mktemp /tmp/perf.out.XXXXXX)
echo "Testing sched-migration.py..."
# Create a perf.data file. Force dropping a packet if tracepoint is available!
ev="sched:sched_switch,sched:sched_migrate_task"
ev="${ev},sched:sched_wakeup_new,sched:sched_wakeup"
has_sched=1
if ! perf record -B -N --no-bpf-event -e "$ev" -a -o "${temp_data}" \
-- sleep 0.1 >/dev/null 2>&1; then
has_sched=0
perf record -B -N --no-bpf-event -e cycles -o "${temp_data}" \
-- perf test -w noploop >/dev/null 2>&1 || \
{ echo "Skipping test, perf record failed"; exit 2; }
fi
if [ ! -s "${temp_data}" ]; then
echo "Skipping test, perf record failed to create data"
exit 2
fi
# Check that the script executes
if ! perf script sched-migration -v --no-gui -i "${temp_data}" > "${temp_out}"; then
echo "sched-migration.py test failed"
err=1
elif [ "$has_sched" -eq 1 ] && ! grep -q "Timeslices:" "${temp_out}"; then
echo "sched-migration.py missing Timeslices output"
err=1
else
echo "sched-migration test passed."
fi
rm -f "${temp_out}"
exit $err
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