> -----Original Message-----
> From: Wang, Zhihong
> Sent: Wednesday, June 01, 2016 4:28 AM
> To: dev at dpdk.org
> Cc: Ananyev, Konstantin; Richardson, Bruce; De Lara Guarch, Pablo;
> thomas.monjalon at 6wind.com; Wang, Zhihong
> Subject: [PATCH v2 3/5] testpmd: show throughput in port stats
>
> This patch adds throughput numbers (in the period since last use of this
> command) in port statistics display for "show port stats (port_id|all)".
>
>
> Signed-off-by: Zhihong Wang <zhihong.wang at intel.com>
> ---
> app/test-pmd/config.c | 20 ++++++++++++++++++++
> 1 file changed, 20 insertions(+)
>
> diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
> index c611649..f487b87 100644
> --- a/app/test-pmd/config.c
> +++ b/app/test-pmd/config.c
> @@ -92,6 +92,7 @@
> #include <rte_ether.h>
> #include <rte_ethdev.h>
> #include <rte_string_fns.h>
> +#include <rte_cycles.h>
>
> #include "testpmd.h"
>
> @@ -150,6 +151,10 @@ print_ethaddr(const char *name, struct ether_addr
> *eth_addr)
> void
> nic_stats_display(portid_t port_id)
> {
> + static uint64_t sum_rx[RTE_MAX_ETHPORTS];
> + static uint64_t sum_tx[RTE_MAX_ETHPORTS];
> + static uint64_t cycles[RTE_MAX_ETHPORTS];
> + uint64_t pkt_rx, pkt_tx, cycle;
Could you rename some of these variables to something more specific?
Like:
pkt_rx -> diff_rx_pkts
sum_rx -> prev_rx_pkts
cycle -> diff_cycles
cycles -> prev_cycles
> struct rte_eth_stats stats;
> struct rte_port *port = &ports[port_id];
> uint8_t i;
> @@ -209,6 +214,21 @@ nic_stats_display(portid_t port_id)
> }
> }
>
> + cycle = cycles[port_id];
> + cycles[port_id] = rte_rdtsc();
> + if (cycle > 0)
> + cycle = cycles[port_id] - cycle;
> +
> + pkt_rx = stats.ipackets - sum_rx[port_id];
> + pkt_tx = stats.opackets - sum_tx[port_id];
> + sum_rx[port_id] = stats.ipackets;
> + sum_tx[port_id] = stats.opackets;
> + printf("\n Throughput (since last show)\n");
> + printf(" RX-pps: %12"PRIu64"\n"
> + " TX-pps: %12"PRIu64"\n",
> + cycle > 0 ? pkt_rx * rte_get_tsc_hz() / cycle : 0,
> + cycle > 0 ? pkt_tx * rte_get_tsc_hz() / cycle : 0);
> +
> printf(" %s############################%s\n",
> nic_stats_border, nic_stats_border);
> }
> --
> 2.5.0
