find_cgroups()
{
# try usual systemd slices first
- if [ -d /sys/fs/cgroup/system.slice -a -d /sys/fs/cgroup/user.slice ]; then
+ if [ -d /sys/fs/cgroup/system.slice ] && [ -d /sys/fs/cgroup/user.slice ]; then
test_cgroups="system.slice,user.slice"
return
fi
# try root and self cgroups
- local self_cgrp=$(grep perf_event /proc/self/cgroup | cut -d: -f3)
- if [ -z ${self_cgrp} ]; then
+ find_cgroups_self_cgrp=$(grep perf_event /proc/self/cgroup | cut -d: -f3)
+ if [ -z ${find_cgroups_self_cgrp} ]; then
# cgroup v2 doesn't specify perf_event
- self_cgrp=$(grep ^0: /proc/self/cgroup | cut -d: -f3)
+ find_cgroups_self_cgrp=$(grep ^0: /proc/self/cgroup | cut -d: -f3)
fi
- if [ -z ${self_cgrp} ]; then
+ if [ -z ${find_cgroups_self_cgrp} ]; then
test_cgroups="/"
else
- test_cgroups="/,${self_cgrp}"
+ test_cgroups="/,${find_cgroups_self_cgrp}"
fi
}
# Just check if it runs without failure and has non-zero results.
check_system_wide_counted()
{
- local output
-
- output=$(perf stat -a --bpf-counters --for-each-cgroup ${test_cgroups} -e cpu-clock -x, sleep 1 2>&1)
- if echo ${output} | grep -q -F "<not "; then
+ check_system_wide_counted_output=$(perf stat -a --bpf-counters --for-each-cgroup ${test_cgroups} -e cpu-clock -x, sleep 1 2>&1)
+ if echo ${check_system_wide_counted_output} | grep -q -F "<not "; then
echo "Some system-wide events are not counted"
if [ "${verbose}" = "1" ]; then
- echo ${output}
+ echo ${check_system_wide_counted_output}
fi
exit 1
fi
check_cpu_list_counted()
{
- local output
-
- output=$(perf stat -C 1 --bpf-counters --for-each-cgroup ${test_cgroups} -e cpu-clock -x, taskset -c 1 sleep 1 2>&1)
- if echo ${output} | grep -q -F "<not "; then
+ check_cpu_list_counted_output=$(perf stat -C 1 --bpf-counters --for-each-cgroup ${test_cgroups} -e cpu-clock -x, taskset -c 1 sleep 1 2>&1)
+ if echo ${check_cpu_list_counted_output} | grep -q -F "<not "; then
echo "Some CPU events are not counted"
if [ "${verbose}" = "1" ]; then
- echo ${output}
+ echo ${check_cpu_list_counted_output}
fi
exit 1
fi