build(ci): Show cgroup cpu after run

Author: bric3

.gitlab/cgroup-report.sh

@@ -38,7 +38,17 @@ if [ -f /sys/fs/cgroup/cgroup.controllers ]; then
     print_metric "cgroup v2 memory.events oom_kill" "$( (grep -E '^oom_kill\\s' /sys/fs/cgroup/memory.events | cut -d' ' -f2) 2>/dev/null || echo 'not found')"
     print_metric "cgroup v2 memory.events high" "$( (grep -E '^high\\s' /sys/fs/cgroup/memory.events | cut -d' ' -f2) 2>/dev/null || echo 'not found')"
   fi
-elif [ -d "/sys/fs/cgroup/memory" ]; then
+
+  # CPU metrics
+  print_metric "cgroup v2 cpu.max" "$(cat_file /sys/fs/cgroup/cpu.max)"
+  print_metric "cgroup v2 cpu.nr_throttled" "$( (grep -E "^nr_throttled[[:space:]]+" /sys/fs/cgroup/cpu.stat | cut -d' ' -f2) 2>/dev/null || echo 'not found')"
+  print_metric "cgroup v2 cpu.throttled_usec" "$( (grep -E "^throttled_usec[[:space:]]+" /sys/fs/cgroup/cpu.stat | cut -d' ' -f2) 2>/dev/null || echo 'not found')"
+  print_metric "cgroup v2 cpu.usage_usec" "$( (grep -E "^usage_usec[[:space:]]+" /sys/fs/cgroup/cpu.stat | cut -d' ' -f2) 2>/dev/null || echo 'not found')"
+  if [ -f /sys/fs/cgroup/cpu.pressure ]; then # cpu.pressure might not exist on older kernels/setups
+    print_metric "cgroup v2 cpu.pressure" "$(cat_file /sys/fs/cgroup/cpu.pressure)"
+  fi
+
+elif [ -d "/sys/fs/cgroup/memory" ]; then # Assuming if memory cgroup v1 exists, cpu might too
   # cgroup v1
   # Note: In cgroup v1, memory stats are typically found under /sys/fs/cgroup/memory/
   # The specific path might vary if inside a nested cgroup.
@@ -47,6 +57,24 @@ elif [ -d "/sys/fs/cgroup/memory" ]; then
   print_metric "cgroup v1 memory.limit_in_bytes" "$(cat_file /sys/fs/cgroup/memory/memory.limit_in_bytes)"
   print_metric "cgroup v1 memory.failcnt" "$(cat_file /sys/fs/cgroup/memory/memory.failcnt)"
   print_metric "cgroup v1 memory.max_usage_in_bytes" "$(cat_file /sys/fs/cgroup/memory/memory.max_usage_in_bytes)"
+
+  # Throttling stats from /sys/fs/cgroup/cpu/cpu.stat
+  if [ -f /sys/fs/cgroup/cpu/cpu.stat ]; then
+    print_metric "cgroup v1 cpu.nr_throttled" "$( (grep -E "^nr_throttled[[:space:]]+" /sys/fs/cgroup/cpu/cpu.stat | cut -d' ' -f2) 2>/dev/null || echo 'not found')"
+    print_metric "cgroup v1 cpu.throttled_time_ns" "$( (grep -E "^throttled_time[[:space:]]+" /sys/fs/cgroup/cpu/cpu.stat | cut -d' ' -f2) 2>/dev/null || echo 'not found')"
+  else
+    # Print not found for these specific metrics if cpu.stat is missing, to avoid ambiguity
+    print_metric "cgroup v1 cpu.nr_throttled" "not found (cpu.stat)"
+    print_metric "cgroup v1 cpu.throttled_time_ns" "not found (cpu.stat)"
+  fi
+  # CPU Quota settings from /sys/fs/cgroup/cpu/
+  print_metric "cgroup v1 cpu.cfs_period_us" "$(cat_file /sys/fs/cgroup/cpu/cpu.cfs_period_us)"
+  print_metric "cgroup v1 cpu.cfs_quota_us" "$(cat_file /sys/fs/cgroup/cpu/cpu.cfs_quota_us)"
+  # CPU usage from /sys/fs/cgroup/cpuacct/ (usually same hierarchy as cpu)
+  print_metric "cgroup v1 cpuacct.usage_ns" "$(cat_file /sys/fs/cgroup/cpuacct/cpuacct.usage)"
+  print_metric "cgroup v1 cpuacct.usage_user_ns" "$(cat_file /sys/fs/cgroup/cpuacct/cpuacct.usage_user)"
+  print_metric "cgroup v1 cpuacct.usage_sys_ns" "$(cat_file /sys/fs/cgroup/cpuacct/cpuacct.usage_sys)"
+
 else
   printf "cgroup memory paths not found. Neither cgroup v2 controller file nor cgroup v1 memory directory detected.\n"
 fi