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cgroup/cpuset: add sefltest for cpuset v1

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There is only hotplug test for cpuset v1, just add base read/write test
for cpuset v1.

Signed-off-by: Chen Ridong <chenridong@huawei.com>
Acked-by: Waiman Long <longman@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Chen Ridong 2024-08-30 10:02:29 +00:00 committed by Tejun Heo
parent 1abab1ba07
commit 3f9319c691
2 changed files with 78 additions and 0 deletions
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MAINTAINERS
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@ -5703,6 +5703,7 @@ F: kernel/cgroup/cpuset-v1.c
F: kernel/cgroup/cpuset.c
F: tools/testing/selftests/cgroup/test_cpuset.c
F: tools/testing/selftests/cgroup/test_cpuset_prs.sh
F: tools/testing/selftests/cgroup/test_cpuset_v1_base.sh
CONTROL GROUP - MEMORY RESOURCE CONTROLLER (MEMCG)
M: Johannes Weiner <hannes@cmpxchg.org>

77
tools/testing/selftests/cgroup/test_cpuset_v1_base.sh Executable file
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@ -0,0 +1,77 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Basc test for cpuset v1 interfaces write/read
#
skip_test() {
echo "$1"
echo "Test SKIPPED"
exit 4 # ksft_skip
}
write_test() {
dir=$1
interface=$2
value=$3
original=$(cat $dir/$interface)
echo "testing $interface $value"
echo $value > $dir/$interface
new=$(cat $dir/$interface)
[[ $value -ne $(cat $dir/$interface) ]] && {
echo "$interface write $value failed: new:$new"
exit 1
}
}
[[ $(id -u) -eq 0 ]] || skip_test "Test must be run as root!"
# Find cpuset v1 mount point
CPUSET=$(mount -t cgroup | grep cpuset | head -1 | awk '{print $3}')
[[ -n "$CPUSET" ]] || skip_test "cpuset v1 mount point not found!"
#
# Create a test cpuset, read write test
#
TDIR=test$$
[[ -d $CPUSET/$TDIR ]] || mkdir $CPUSET/$TDIR
ITF_MATRIX=(
#interface value expect root_only
'cpuset.cpus 0-1 0-1 0'
'cpuset.mem_exclusive 1 1 0'
'cpuset.mem_exclusive 0 0 0'
'cpuset.mem_hardwall 1 1 0'
'cpuset.mem_hardwall 0 0 0'
'cpuset.memory_migrate 1 1 0'
'cpuset.memory_migrate 0 0 0'
'cpuset.memory_spread_page 1 1 0'
'cpuset.memory_spread_page 0 0 0'
'cpuset.memory_spread_slab 1 1 0'
'cpuset.memory_spread_slab 0 0 0'
'cpuset.mems 0 0 0'
'cpuset.sched_load_balance 1 1 0'
'cpuset.sched_load_balance 0 0 0'
'cpuset.sched_relax_domain_level 2 2 0'
'cpuset.memory_pressure_enabled 1 1 1'
'cpuset.memory_pressure_enabled 0 0 1'
)
run_test()
{
cnt="${ITF_MATRIX[@]}"
for i in "${ITF_MATRIX[@]}" ; do
args=($i)
root_only=${args[3]}
[[ $root_only -eq 1 ]] && {
write_test "$CPUSET" "${args[0]}" "${args[1]}" "${args[2]}"
continue
}
write_test "$CPUSET/$TDIR" "${args[0]}" "${args[1]}" "${args[2]}"
done
}
run_test
rmdir $CPUSET/$TDIR
echo "Test PASSED"
exit 0