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#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Copyright (C) 2024 Yunsheng Lin <linyunsheng@huawei.com>
# Copyright (C) 2018 Uladzislau Rezki (Sony) <urezki@gmail.com>
#
# This is a test script for the kernel test driver to test the
# correctness and performance of page_frag's implementation.
# Therefore it is just a kernel module loader. You can specify
# and pass different parameters in order to:
# a) analyse performance of page fragment allocations;
# b) stressing and stability check of page_frag subsystem.
DRIVER="./page_frag/page_frag_test.ko"
CPU_LIST=$(grep -m 2 processor /proc/cpuinfo | cut -d ' ' -f 2)
TEST_CPU_0=$(echo $CPU_LIST | awk '{print $1}')
if [ $(echo $CPU_LIST | wc -w) -gt 1 ]; then
TEST_CPU_1=$(echo $CPU_LIST | awk '{print $2}')
NR_TEST=100000000
else
TEST_CPU_1=$TEST_CPU_0
NR_TEST=1000000
fi
# 1 if fails
exitcode=1
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
check_test_failed_prefix() {
if dmesg | grep -q 'page_frag_test failed:';then
echo "page_frag_test failed, please check dmesg"
exit $exitcode
fi
}
#
# Static templates for testing of page_frag APIs.
# Also it is possible to pass any supported parameters manually.
#
SMOKE_PARAM="test_push_cpu=$TEST_CPU_0 test_pop_cpu=$TEST_CPU_1"
NONALIGNED_PARAM="$SMOKE_PARAM test_alloc_len=75 nr_test=$NR_TEST"
ALIGNED_PARAM="$NONALIGNED_PARAM test_align=1"
check_test_requirements()
{
uid=$(id -u)
if [ $uid -ne 0 ]; then
echo "$0: Must be run as root"
exit $ksft_skip
fi
if ! which insmod > /dev/null 2>&1; then
echo "$0: You need insmod installed"
exit $ksft_skip
fi
if [ ! -f $DRIVER ]; then
echo "$0: You need to compile page_frag_test module"
exit $ksft_skip
fi
}
run_nonaligned_check()
{
echo "Run performance tests to evaluate how fast nonaligned alloc API is."
insmod $DRIVER $NONALIGNED_PARAM > /dev/null 2>&1
}
run_aligned_check()
{
echo "Run performance tests to evaluate how fast aligned alloc API is."
insmod $DRIVER $ALIGNED_PARAM > /dev/null 2>&1
}
run_smoke_check()
{
echo "Run smoke test."
insmod $DRIVER $SMOKE_PARAM > /dev/null 2>&1
}
usage()
{
echo -n "Usage: $0 [ aligned ] | [ nonaligned ] | | [ smoke ] | "
echo "manual parameters"
echo
echo "Valid tests and parameters:"
echo
modinfo $DRIVER
echo
echo "Example usage:"
echo
echo "# Shows help message"
echo "$0"
echo
echo "# Smoke testing"
echo "$0 smoke"
echo
echo "# Performance testing for nonaligned alloc API"
echo "$0 nonaligned"
echo
echo "# Performance testing for aligned alloc API"
echo "$0 aligned"
echo
exit 0
}
function validate_passed_args()
{
VALID_ARGS=`modinfo $DRIVER | awk '/parm:/ {print $2}' | sed 's/:.*//'`
#
# Something has been passed, check it.
#
for passed_arg in $@; do
key=${passed_arg//=*/}
valid=0
for valid_arg in $VALID_ARGS; do
if [[ $key = $valid_arg ]]; then
valid=1
break
fi
done
if [[ $valid -ne 1 ]]; then
echo "Error: key is not correct: ${key}"
exit $exitcode
fi
done
}
function run_manual_check()
{
#
# Validate passed parameters. If there is wrong one,
# the script exists and does not execute further.
#
validate_passed_args $@
echo "Run the test with following parameters: $@"
insmod $DRIVER $@ > /dev/null 2>&1
}
function run_test()
{
if [ $# -eq 0 ]; then
usage
else
if [[ "$1" = "smoke" ]]; then
run_smoke_check
elif [[ "$1" = "nonaligned" ]]; then
run_nonaligned_check
elif [[ "$1" = "aligned" ]]; then
run_aligned_check
else
run_manual_check $@
fi
fi
check_test_failed_prefix
echo "Done."
echo "Check the kernel ring buffer to see the summary."
}
check_test_requirements
run_test $@
exit 0
|
