github-actions[bot] commented on code in PR #45284:
URL: https://github.com/apache/doris/pull/45284#discussion_r1880079008
##########
be/src/util/cgroup_util.cpp:
##########
@@ -264,4 +268,136 @@ void CGroupUtil::read_int_metric_from_cgroup_file(
}
}
+Status CGroupUtil::read_string_line_from_cgroup_file(const
std::filesystem::path& file_path,
+ std::string* line_ptr) {
+ std::ifstream file_stream(file_path, std::ios::in);
+ if (!file_stream.is_open()) {
+ return Status::CgroupError("Error open {}", file_path.string());
+ }
+ string line;
+ getline(file_stream, line);
+ if (file_stream.fail() || file_stream.bad()) {
+ return Status::CgroupError("Error reading {}: {}", file_path.string(),
get_str_err_msg());
+ }
+ *line_ptr = line;
+ return Status::OK();
+}
+
+Status CGroupUtil::parse_cpuset_line(std::string cpuset_line, int*
cpu_count_ptr) {
+ if (cpuset_line.empty()) {
+ return Status::CgroupError("cpuset line is empty");
+ }
+ std::vector<string> ranges;
+ boost::split(ranges, cpuset_line, boost::is_any_of(","));
+ int cpu_count = 0;
+
+ for (const std::string& range : ranges) {
+ std::vector<std::string> cpu_values;
+ boost::split(cpu_values, range, boost::is_any_of("-"));
+
+ if (cpu_values.size() == 2) {
+ int start = std::stoi(cpu_values[0]);
+ int end = std::stoi(cpu_values[1]);
+ cpu_count += (end - start) + 1;
+ } else {
+ cpu_count++;
+ }
+ }
+ *cpu_count_ptr = cpu_count;
+ return Status::OK();
+}
+
+int CGroupUtil::get_cgroup_limited_cpu_number(int physical_cores) {
Review Comment:
warning: function 'get_cgroup_limited_cpu_number' has cognitive complexity
of 52 (threshold 50) [readability-function-cognitive-complexity]
```cpp
int CGroupUtil::get_cgroup_limited_cpu_number(int physical_cores) {
^
```
<details>
<summary>Additional context</summary>
**be/src/util/cgroup_util.cpp:310:** +1, including nesting penalty of 0,
nesting level increased to 1
```cpp
if (physical_cores <= 0) {
^
```
**be/src/util/cgroup_util.cpp:319:** +1, including nesting penalty of 0,
nesting level increased to 1
```cpp
if (CGroupUtil::cgroupsv2_enable()) {
^
```
**be/src/util/cgroup_util.cpp:321:** +2, including nesting penalty of 1,
nesting level increased to 2
```cpp
if (cgroupv2_process_path.empty()) {
^
```
**be/src/util/cgroup_util.cpp:325:** +2, including nesting penalty of 1,
nesting level increased to 2
```cpp
while (current_cgroup_path != default_cgroups_mount.parent_path()) {
^
```
**be/src/util/cgroup_util.cpp:327:** +3, including nesting penalty of 2,
nesting level increased to 3
```cpp
if (cpu_max_file.is_open()) {
^
```
**be/src/util/cgroup_util.cpp:331:** +4, including nesting penalty of 3,
nesting level increased to 4
```cpp
if (cpu_limit_str != "max" && cpu_period != 0) {
^
```
**be/src/util/cgroup_util.cpp:331:** +1
```cpp
if (cpu_limit_str != "max" && cpu_period != 0) {
^
```
**be/src/util/cgroup_util.cpp:340:** +2, including nesting penalty of 1,
nesting level increased to 2
```cpp
while (current_cgroup_path != default_cgroups_mount.parent_path()) {
^
```
**be/src/util/cgroup_util.cpp:343:** +3, including nesting penalty of 2,
nesting level increased to 3
```cpp
if (cpuset_cpus_file.is_open()) {
^
```
**be/src/util/cgroup_util.cpp:346:** +4, including nesting penalty of 3,
nesting level increased to 4
```cpp
if (cpuset_line.empty()) {
^
```
**be/src/util/cgroup_util.cpp:355:** +1, nesting level increased to 1
```cpp
} else if (CGroupUtil::cgroupsv1_enable()) {
^
```
**be/src/util/cgroup_util.cpp:360:** +2, including nesting penalty of 1,
nesting level increased to 2
```cpp
if (cpu_quota_ret.ok() && !cpu_quota_path.empty()) {
^
```
**be/src/util/cgroup_util.cpp:360:** +1
```cpp
if (cpu_quota_ret.ok() && !cpu_quota_path.empty()) {
^
```
**be/src/util/cgroup_util.cpp:362:** +3, including nesting penalty of 2,
nesting level increased to 3
```cpp
while (current_cgroup_path !=
default_cgroups_mount.parent_path()) {
^
```
**be/src/util/cgroup_util.cpp:365:** +4, including nesting penalty of 3,
nesting level increased to 4
```cpp
if (cpu_quota_file.is_open() && cpu_period_file.is_open()) {
^
```
**be/src/util/cgroup_util.cpp:365:** +1
```cpp
if (cpu_quota_file.is_open() && cpu_period_file.is_open()) {
^
```
**be/src/util/cgroup_util.cpp:370:** +5, including nesting penalty of 4,
nesting level increased to 5
```cpp
if (cpu_quota_value > 0 && cpu_period_value > 0) {
^
```
**be/src/util/cgroup_util.cpp:370:** +1
```cpp
if (cpu_quota_value > 0 && cpu_period_value > 0) {
^
```
**be/src/util/cgroup_util.cpp:386:** +2, including nesting penalty of 1,
nesting level increased to 2
```cpp
if (cpuset_ret.ok() && !cpuset_path.empty()) {
^
```
**be/src/util/cgroup_util.cpp:386:** +1
```cpp
if (cpuset_ret.ok() && !cpuset_path.empty()) {
^
```
**be/src/util/cgroup_util.cpp:390:** +3, including nesting penalty of 2,
nesting level increased to 3
```cpp
if (cpuset_ret.ok() && !cpuset_line.empty()) {
^
```
**be/src/util/cgroup_util.cpp:390:** +1
```cpp
if (cpuset_ret.ok() && !cpuset_line.empty()) {
^
```
**be/src/util/cgroup_util.cpp:392:** +4, including nesting penalty of 3,
nesting level increased to 4
```cpp
if (cpuset_count > 0) {
^
```
</details>
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