Test dpdk-testpmd performance in loopback mode

Test dpdk-testpmd performance in loopback mode

1. Create testpmd job

2. Start the job

3. If dbells_supp :

   • Attach doorbells filters

4. Retrieve link speed from running testpmd

5. Initialize Tx and Rx statistics

6. Retrieve Tx stats from running testpmd

7. Check and log measurement results

Igor Romanov Igor.Romanov@oktetlabs.ru

Parameters:

testpmd_command_txpkts	Comma-separated list of segment lengths of transmitted packets, set by testpmd command set txpkts
n_fwd_cores	Number of CPU cores for testpmd on IUT
testpmd_command_loopback_mode	Driver-specific loopback mode, set by testpmd command port config all loopback; the iteration is skipped if IUT does not support it
testpmd_arg_forward_mode	Forwarding mode of testpmd on IUT (testpmd option --forward-mode)
testpmd_arg_tx_first	Whether to start forwarding by sending a burst of packets first (testpmd option --tx-first)
testpmd_arg_stats_period	Period in seconds of testpmd statistics display (testpmd option --stats-period)
testpmd_arg_no_lsc_interrupt	Whether to disable link status change interrupt (testpmd option --no-lsc-interrupt)
testpmd_arg_txd	Number of Tx ring descriptors (testpmd option --txd)
testpmd_arg_burst	Number of packets per burst (testpmd option --burst)
testpmd_arg_rxfreet	Free threshold of Rx rings, 0 means driver default (testpmd option --rxfreet)
testpmd_arg_txfreet	Free threshold of Tx rings, 0 means driver default (testpmd option --txfreet)

testpmd_loopback