System information

Manual:System/Resource
144
Properties
Property Description
cpu (auto | integer; Default: )
Specifies which CPU is assigned to the IRQ.
• auto - pick CPU based on number of interrupts. Uses NAPI
[1]
to optimize interrupts.
Read-only properties
Property Description
active-cpu (integer) Shows active CPU in multicore systems.
count (integer) Number of interrupts. On ethernet interfaces interrupt=packet.
irq (integer) IRQ identification number
users (string) Process assigned to IRQ
RPS
Sub-menu level: /system resource rps
This menu allows to enable Receive Packet Steering (RPS) to reduce single core usage.
NAPI
[1]
can become a bottleneck under high packet load, because of serialization per device queue. RPS distributes
the load of received packet processing across multiple cores.
USB
Sub-menu level: /system resource usb
This menu displays all available USB controllers on the board. Menu is available only if at least one USB controller
is present.
[admin@MikroTik] /system resource usb> print detail
0 device="2:1" name="RB400 EHCI" serial-number="rb400_usb" vendor-id="0x1d6b"
device-id="0x0002" speed="480 Mbps" ports=2 usb-version="2.00"
1 device="1:1" name="RB400 OHCI" serial-number="rb400_usb" vendor-id="0x1d6b"
device-id="0x0001" speed="12 Mbps" ports=2 usb-version="1.10"
Properties
Property Description
device (string)
device-id (hex) Hexadecimal device ID
name (string) Descriptive name of the device retrieved from driver
ports (integer) How many ports are supported by usb controller
serial-number (string)
speed (string) Max USB speed that can be used (480Mbps for USBv2 and 12Mbps for USBv1)
usb-version (string) Identifies max spported USB version
vendor (string) Device manufacturer's name.