Brocade Fabric OS Command Reference Guide v6.1.0 (53-1000599-02, June 2008)

Fabric OS Command Reference 511
53-1000599-02
portPerfShow
2
portPerfShow
Displays port throughput performance.
Synopsis portperfshow [interval]
Description Use this command to display throughput information for all ports on the switch. Output includes the
number of bytes received plus the number of bytes transmitted per interval. Throughput values are
displayed as either bytes, kilobytes (k), megabytes (m), or gigabytes (g). Values are always rounded
down.
The data is displayed in 8 or 16 columns, one column per port plus one column that displays the
total for these ports. Results display every second or over the specified interval. Enter, Ctrl-c, or
Ctrl-d to exit the display.
Operands This command has the following operand:
interval Specifies the interval, in seconds, between each sample. Default is one
second. This operand is optional.
When fastwrite or tape pipelining is enabled, the portPerfShow VE link output is different. The
acceleration entity (fastwrite or tape pipelining) responds by sending XFER_RDY and status well
ahead of the actual device's response to the host. The host sends data which is stored near the
device and is delivered to the device only when the device is ready. So the data may be stored near
the target for some brief period of time. In this case, the portPerfShow output on the VE link may
not match the output on the device port.
Examples To display port throughput for a switch:
switch:user> portperfshow 20
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Total
============================================================================
slot 1: 0 0 23k 0 0 134k 0 12m 0 7.3m 0 312m 0 1.1g 0 0 1.4g
slot 2: 0 212m 0 0 784k 0 0 0 43m 0 85m 0 275k 0 498 0 341m
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Total
============================================================================
slot 1: 0 0 26k 0 0 160k 0 13m 0 7.5m 0 310m 0 1.2g 0 0 1.3g
slot 2: 0 178m 0 0 812k 0 0 0 43m 0 87m 0 272k 0 330 0 310m
See Also portStatsShow