github.com/opencontainers/runc@v1.2.0-rc.1.0.20240520010911-492dc558cdd6/libcontainer/intelrdt/mbm.go (about)

     1  package intelrdt
     2  
     3  // The flag to indicate if Intel RDT/MBM is enabled
     4  var mbmEnabled bool
     5  
     6  // Check if Intel RDT/MBM is enabled.
     7  func IsMBMEnabled() bool {
     8  	featuresInit()
     9  	return mbmEnabled
    10  }
    11  
    12  func getMBMNumaNodeStats(numaPath string) (*MBMNumaNodeStats, error) {
    13  	stats := &MBMNumaNodeStats{}
    14  	if enabledMonFeatures.mbmTotalBytes {
    15  		mbmTotalBytes, err := getIntelRdtParamUint(numaPath, "mbm_total_bytes")
    16  		if err != nil {
    17  			return nil, err
    18  		}
    19  		stats.MBMTotalBytes = mbmTotalBytes
    20  	}
    21  
    22  	if enabledMonFeatures.mbmLocalBytes {
    23  		mbmLocalBytes, err := getIntelRdtParamUint(numaPath, "mbm_local_bytes")
    24  		if err != nil {
    25  			return nil, err
    26  		}
    27  		stats.MBMLocalBytes = mbmLocalBytes
    28  	}
    29  
    30  	return stats, nil
    31  }