[dpdk-dev] [PATCH v3 3/5] testpmd: show throughput in port stats
Zhihong Wang
zhihong.wang at intel.com
Wed Jun 15 01:08:04 CEST 2016
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 | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index a85bb5f..ede7c78 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 +151,11 @@ print_ethaddr(const char *name, struct ether_addr *eth_addr)
void
nic_stats_display(portid_t port_id)
{
+ static uint64_t prev_pkts_rx[RTE_MAX_ETHPORTS];
+ static uint64_t prev_pkts_tx[RTE_MAX_ETHPORTS];
+ static uint64_t prev_cycles[RTE_MAX_ETHPORTS];
+ uint64_t diff_pkts_rx, diff_pkts_tx, diff_cycles;
+ uint64_t mpps_rx, mpps_tx;
struct rte_eth_stats stats;
struct rte_port *port = &ports[port_id];
uint8_t i;
@@ -209,6 +215,23 @@ nic_stats_display(portid_t port_id)
}
}
+ diff_cycles = prev_cycles[port_id];
+ prev_cycles[port_id] = rte_rdtsc();
+ if (diff_cycles > 0)
+ diff_cycles = prev_cycles[port_id] - diff_cycles;
+
+ diff_pkts_rx = stats.ipackets - prev_pkts_rx[port_id];
+ diff_pkts_tx = stats.opackets - prev_pkts_tx[port_id];
+ prev_pkts_rx[port_id] = stats.ipackets;
+ prev_pkts_tx[port_id] = stats.opackets;
+ mpps_rx = diff_cycles > 0 ?
+ diff_pkts_rx * rte_get_tsc_hz() / diff_cycles : 0;
+ mpps_tx = diff_cycles > 0 ?
+ diff_pkts_tx * rte_get_tsc_hz() / diff_cycles : 0;
+ printf("\n Throughput (since last show)\n");
+ printf(" Rx-pps: %12"PRIu64"\n Tx-pps: %12"PRIu64"\n",
+ mpps_rx, mpps_tx);
+
printf(" %s############################%s\n",
nic_stats_border, nic_stats_border);
}
--
2.5.0
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