Linux 查看PCI-E插槽使用情況

[root@xnat1 ~]# dmidecode | grep -1 PCI
        Characteristics:
                PCI is supported
                PNP is supported
--
System Slot Information
        Designation: PCI-E Slot 1
        Type: x16 PCI Express 2 x16
        Current Usage: Available
--
System Slot Information
        Designation: PCI-E Slot 2
        Type: x16 PCI Express 2 x16
        Current Usage: In Use