stats: use runtime.NumCPU when percpu counters are not available
in the cgroup v2 implementation we don't have yet percpu times.
package libpod
import (
+ "runtime"
"strings"
"syscall"
"time"
@@ -105,7 +106,11 @@ func calculateCPUPercent(stats *cgroups.Metrics, previousCPU, previousSystem uin
if systemDelta > 0.0 && cpuDelta > 0.0 {
// gets a ratio of container cpu usage total, multiplies it by the number of cores (4 cores running
// at 100% utilization should be 400% utilization), and multiplies that by 100 to get a percentage
- cpuPercent = (cpuDelta / systemDelta) * float64(len(stats.CPU.Usage.PerCPU)) * 100
+ nCPUS := len(stats.CPU.Usage.PerCPU)
+ if nCPUS == 0 {
+ nCPUS = runtime.NumCPU()
+ }
+ cpuPercent = (cpuDelta / systemDelta) * float64(nCPUS) * 100
}
return cpuPercent
}
