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app/testpmd: display/clear forwarding stats on demand

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Add a new "show/clear fwd stats all" command to display fwd and port
statistics on the fly.

To be able to do so, the (testpmd only) rte_port structure can't be used
to maintain any statistics.
Moved the stats dump parts from stop_packet_forwarding() and merge with
fwd_port_stats_display() into fwd_stats_display().
fwd engine statistics are then aggregated into a local per port array.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
David Marchand 2019-03-25 09:51:46 +01:00 committed by Ferruh Yigit
parent 7718296d06
commit 53324971a1
4 changed files with 310 additions and 209 deletions
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49
app/test-pmd/cmdline.c
View File

@ -225,6 +225,11 @@ static void cmd_help_long_parsed(void *parsed_result,
"show port tm node stats (port_id) (node_id) (clear)\n"
" Display the port TM node stats.\n\n"
"show fwd stats all\n"
" Display statistics for all fwd engines.\n\n"
"clear fwd stats all\n"
" Clear statistics for all fwd engines.\n\n"
);
}
@ -7386,6 +7391,49 @@ cmdline_parse_inst_t cmd_showqueue = {
},
};
/* show/clear fwd engine statistics */
struct fwd_result {
cmdline_fixed_string_t action;
cmdline_fixed_string_t fwd;
cmdline_fixed_string_t stats;
cmdline_fixed_string_t all;
};
cmdline_parse_token_string_t cmd_fwd_action =
TOKEN_STRING_INITIALIZER(struct fwd_result, action, "show#clear");
cmdline_parse_token_string_t cmd_fwd_fwd =
TOKEN_STRING_INITIALIZER(struct fwd_result, fwd, "fwd");
cmdline_parse_token_string_t cmd_fwd_stats =
TOKEN_STRING_INITIALIZER(struct fwd_result, stats, "stats");
cmdline_parse_token_string_t cmd_fwd_all =
TOKEN_STRING_INITIALIZER(struct fwd_result, all, "all");
static void
cmd_showfwdall_parsed(void *parsed_result,
__rte_unused struct cmdline *cl,
__rte_unused void *data)
{
struct fwd_result *res = parsed_result;
if (!strcmp(res->action, "show"))
fwd_stats_display();
else
fwd_stats_reset();
}
static cmdline_parse_inst_t cmd_showfwdall = {
.f = cmd_showfwdall_parsed,
.data = NULL,
.help_str = "show|clear fwd stats all",
.tokens = {
(void *)&cmd_fwd_action,
(void *)&cmd_fwd_fwd,
(void *)&cmd_fwd_stats,
(void *)&cmd_fwd_all,
NULL,
},
};
/* *** READ PORT REGISTER *** */
struct cmd_read_reg_result {
cmdline_fixed_string_t read;
@ -18559,6 +18607,7 @@ cmdline_parse_ctx_t main_ctx[] = {
(cmdline_parse_inst_t *)&cmd_showqueue,
(cmdline_parse_inst_t *)&cmd_showportall,
(cmdline_parse_inst_t *)&cmd_showcfg,
(cmdline_parse_inst_t *)&cmd_showfwdall,
(cmdline_parse_inst_t *)&cmd_start,
(cmdline_parse_inst_t *)&cmd_start_tx_first,
(cmdline_parse_inst_t *)&cmd_start_tx_first_n,

425
app/test-pmd/testpmd.c
View File

@ -1360,91 +1360,6 @@ pkt_burst_stats_display(const char *rx_tx, struct pkt_burst_stats *pbs)
}
#endif /* RTE_TEST_PMD_RECORD_BURST_STATS */
static void
fwd_port_stats_display(portid_t port_id, struct rte_eth_stats *stats)
{
struct rte_port *port;
uint8_t i;
static const char *fwd_stats_border = "----------------------";
port = &ports[port_id];
printf("\n %s Forward statistics for port %-2d %s\n",
fwd_stats_border, port_id, fwd_stats_border);
if ((!port->rx_queue_stats_mapping_enabled) && (!port->tx_queue_stats_mapping_enabled)) {
printf(" RX-packets: %-14"PRIu64" RX-dropped: %-14"PRIu64"RX-total: "
"%-"PRIu64"\n",
stats->ipackets, stats->imissed,
stats->ipackets + stats->imissed);
if (cur_fwd_eng == &csum_fwd_engine)
printf(" Bad-ipcsum: %-14"PRIu64" Bad-l4csum: %-14"PRIu64"Bad-outer-l4csum: %-14"PRIu64"\n",
port->rx_bad_ip_csum, port->rx_bad_l4_csum,
port->rx_bad_outer_l4_csum);
if ((stats->ierrors + stats->rx_nombuf) > 0) {
printf(" RX-error: %-"PRIu64"\n", stats->ierrors);
printf(" RX-nombufs: %-14"PRIu64"\n", stats->rx_nombuf);
}
printf(" TX-packets: %-14"PRIu64" TX-dropped: %-14"PRIu64"TX-total: "
"%-"PRIu64"\n",
stats->opackets, port->tx_dropped,
stats->opackets + port->tx_dropped);
}
else {
printf(" RX-packets: %14"PRIu64" RX-dropped:%14"PRIu64" RX-total:"
"%14"PRIu64"\n",
stats->ipackets, stats->imissed,
stats->ipackets + stats->imissed);
if (cur_fwd_eng == &csum_fwd_engine)
printf(" Bad-ipcsum:%14"PRIu64" Bad-l4csum:%14"PRIu64" Bad-outer-l4csum: %-14"PRIu64"\n",
port->rx_bad_ip_csum, port->rx_bad_l4_csum,
port->rx_bad_outer_l4_csum);
if ((stats->ierrors + stats->rx_nombuf) > 0) {
printf(" RX-error:%"PRIu64"\n", stats->ierrors);
printf(" RX-nombufs: %14"PRIu64"\n",
stats->rx_nombuf);
}
printf(" TX-packets: %14"PRIu64" TX-dropped:%14"PRIu64" TX-total:"
"%14"PRIu64"\n",
stats->opackets, port->tx_dropped,
stats->opackets + port->tx_dropped);
}
#ifdef RTE_TEST_PMD_RECORD_BURST_STATS
if (port->rx_stream)
pkt_burst_stats_display("RX",
&port->rx_stream->rx_burst_stats);
if (port->tx_stream)
pkt_burst_stats_display("TX",
&port->tx_stream->tx_burst_stats);
#endif
if (port->rx_queue_stats_mapping_enabled) {
printf("\n");
for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS; i++) {
printf(" Stats reg %2d RX-packets:%14"PRIu64
" RX-errors:%14"PRIu64
" RX-bytes:%14"PRIu64"\n",
i, stats->q_ipackets[i], stats->q_errors[i], stats->q_ibytes[i]);
}
printf("\n");
}
if (port->tx_queue_stats_mapping_enabled) {
for (i = 0; i < RTE_ETHDEV_QUEUE_STAT_CNTRS; i++) {
printf(" Stats reg %2d TX-packets:%14"PRIu64
" TX-bytes:%14"PRIu64"\n",
i, stats->q_opackets[i], stats->q_obytes[i]);
}
}
printf(" %s--------------------------------%s\n",
fwd_stats_border, fwd_stats_border);
}
static void
fwd_stream_stats_display(streamid_t stream_id)
{
@ -1480,6 +1395,224 @@ fwd_stream_stats_display(streamid_t stream_id)
#endif
}
void
fwd_stats_display(void)
{
static const char *fwd_stats_border = "----------------------";
static const char *acc_stats_border = "+++++++++++++++";
struct {
struct fwd_stream *rx_stream;
struct fwd_stream *tx_stream;
uint64_t tx_dropped;
uint64_t rx_bad_ip_csum;
uint64_t rx_bad_l4_csum;
uint64_t rx_bad_outer_l4_csum;
} ports_stats[RTE_MAX_ETHPORTS];
uint64_t total_rx_dropped = 0;
uint64_t total_tx_dropped = 0;
uint64_t total_rx_nombuf = 0;
struct rte_eth_stats stats;
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
uint64_t fwd_cycles = 0;
#endif
uint64_t total_recv = 0;
uint64_t total_xmit = 0;
struct rte_port *port;
streamid_t sm_id;
portid_t pt_id;
int i;
memset(ports_stats, 0, sizeof(ports_stats));
for (sm_id = 0; sm_id < cur_fwd_config.nb_fwd_streams; sm_id++) {
struct fwd_stream *fs = fwd_streams[sm_id];
if (cur_fwd_config.nb_fwd_streams >
cur_fwd_config.nb_fwd_ports) {
fwd_stream_stats_display(sm_id);
} else {
ports_stats[fs->tx_port].tx_stream = fs;
ports_stats[fs->rx_port].rx_stream = fs;
}
ports_stats[fs->tx_port].tx_dropped += fs->fwd_dropped;
ports_stats[fs->rx_port].rx_bad_ip_csum += fs->rx_bad_ip_csum;
ports_stats[fs->rx_port].rx_bad_l4_csum += fs->rx_bad_l4_csum;
ports_stats[fs->rx_port].rx_bad_outer_l4_csum +=
fs->rx_bad_outer_l4_csum;
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
fwd_cycles += fs->core_cycles;
#endif
}
for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++) {
uint8_t j;
pt_id = fwd_ports_ids[i];
port = &ports[pt_id];
rte_eth_stats_get(pt_id, &stats);
stats.ipackets -= port->stats.ipackets;
stats.opackets -= port->stats.opackets;
stats.ibytes -= port->stats.ibytes;
stats.obytes -= port->stats.obytes;
stats.imissed -= port->stats.imissed;
stats.oerrors -= port->stats.oerrors;
stats.rx_nombuf -= port->stats.rx_nombuf;
total_recv += stats.ipackets;
total_xmit += stats.opackets;
total_rx_dropped += stats.imissed;
total_tx_dropped += ports_stats[pt_id].tx_dropped;
total_tx_dropped += stats.oerrors;
total_rx_nombuf += stats.rx_nombuf;
printf("\n %s Forward statistics for port %-2d %s\n",
fwd_stats_border, pt_id, fwd_stats_border);
if (!port->rx_queue_stats_mapping_enabled &&
!port->tx_queue_stats_mapping_enabled) {
printf(" RX-packets: %-14"PRIu64
" RX-dropped: %-14"PRIu64
"RX-total: %-"PRIu64"\n",
stats.ipackets, stats.imissed,
stats.ipackets + stats.imissed);
if (cur_fwd_eng == &csum_fwd_engine)
printf(" Bad-ipcsum: %-14"PRIu64
" Bad-l4csum: %-14"PRIu64
"Bad-outer-l4csum: %-14"PRIu64"\n",
ports_stats[pt_id].rx_bad_ip_csum,
ports_stats[pt_id].rx_bad_l4_csum,
ports_stats[pt_id].rx_bad_outer_l4_csum);
if (stats.ierrors + stats.rx_nombuf > 0) {
printf(" RX-error: %-"PRIu64"\n",
stats.ierrors);
printf(" RX-nombufs: %-14"PRIu64"\n",
stats.rx_nombuf);
}
printf(" TX-packets: %-14"PRIu64
" TX-dropped: %-14"PRIu64
"TX-total: %-"PRIu64"\n",
stats.opackets, ports_stats[pt_id].tx_dropped,
stats.opackets + ports_stats[pt_id].tx_dropped);
} else {
printf(" RX-packets: %14"PRIu64
" RX-dropped:%14"PRIu64
" RX-total:%14"PRIu64"\n",
stats.ipackets, stats.imissed,
stats.ipackets + stats.imissed);
if (cur_fwd_eng == &csum_fwd_engine)
printf(" Bad-ipcsum:%14"PRIu64
" Bad-l4csum:%14"PRIu64
" Bad-outer-l4csum: %-14"PRIu64"\n",
ports_stats[pt_id].rx_bad_ip_csum,
ports_stats[pt_id].rx_bad_l4_csum,
ports_stats[pt_id].rx_bad_outer_l4_csum);
if ((stats.ierrors + stats.rx_nombuf) > 0) {
printf(" RX-error:%"PRIu64"\n", stats.ierrors);
printf(" RX-nombufs: %14"PRIu64"\n",
stats.rx_nombuf);
}
printf(" TX-packets: %14"PRIu64
" TX-dropped:%14"PRIu64
" TX-total:%14"PRIu64"\n",
stats.opackets, ports_stats[pt_id].tx_dropped,
stats.opackets + ports_stats[pt_id].tx_dropped);
}
#ifdef RTE_TEST_PMD_RECORD_BURST_STATS
if (ports_stats[pt_id].rx_stream)
pkt_burst_stats_display("RX",
&ports_stats[pt_id].rx_stream->rx_burst_stats);
if (ports_stats[pt_id].tx_stream)
pkt_burst_stats_display("TX",
&ports_stats[pt_id].tx_stream->tx_burst_stats);
#endif
if (port->rx_queue_stats_mapping_enabled) {
printf("\n");
for (j = 0; j < RTE_ETHDEV_QUEUE_STAT_CNTRS; j++) {
printf(" Stats reg %2d RX-packets:%14"PRIu64
" RX-errors:%14"PRIu64
" RX-bytes:%14"PRIu64"\n",
j, stats.q_ipackets[j],
stats.q_errors[j], stats.q_ibytes[j]);
}
printf("\n");
}
if (port->tx_queue_stats_mapping_enabled) {
for (j = 0; j < RTE_ETHDEV_QUEUE_STAT_CNTRS; j++) {
printf(" Stats reg %2d TX-packets:%14"PRIu64
" TX-bytes:%14"
PRIu64"\n",
j, stats.q_opackets[j],
stats.q_obytes[j]);
}
}
printf(" %s--------------------------------%s\n",
fwd_stats_border, fwd_stats_border);
}
printf("\n %s Accumulated forward statistics for all ports"
"%s\n",
acc_stats_border, acc_stats_border);
printf(" RX-packets: %-14"PRIu64" RX-dropped: %-14"PRIu64"RX-total: "
"%-"PRIu64"\n"
" TX-packets: %-14"PRIu64" TX-dropped: %-14"PRIu64"TX-total: "
"%-"PRIu64"\n",
total_recv, total_rx_dropped, total_recv + total_rx_dropped,
total_xmit, total_tx_dropped, total_xmit + total_tx_dropped);
if (total_rx_nombuf > 0)
printf(" RX-nombufs: %-14"PRIu64"\n", total_rx_nombuf);
printf(" %s++++++++++++++++++++++++++++++++++++++++++++++"
"%s\n",
acc_stats_border, acc_stats_border);
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
if (total_recv > 0)
printf("\n CPU cycles/packet=%u (total cycles="
"%"PRIu64" / total RX packets=%"PRIu64")\n",
(unsigned int)(fwd_cycles / total_recv),
fwd_cycles, total_recv);
#endif
}
void
fwd_stats_reset(void)
{
streamid_t sm_id;
portid_t pt_id;
int i;
for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++) {
pt_id = fwd_ports_ids[i];
rte_eth_stats_get(pt_id, &ports[pt_id].stats);
}
for (sm_id = 0; sm_id < cur_fwd_config.nb_fwd_streams; sm_id++) {
struct fwd_stream *fs = fwd_streams[sm_id];
fs->rx_packets = 0;
fs->tx_packets = 0;
fs->fwd_dropped = 0;
fs->rx_bad_ip_csum = 0;
fs->rx_bad_l4_csum = 0;
fs->rx_bad_outer_l4_csum = 0;
#ifdef RTE_TEST_PMD_RECORD_BURST_STATS
memset(&fs->rx_burst_stats, 0, sizeof(fs->rx_burst_stats));
memset(&fs->tx_burst_stats, 0, sizeof(fs->tx_burst_stats));
#endif
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
fs->core_cycles = 0;
#endif
}
}
static void
flush_fwd_rx_queues(void)
{
@ -1635,7 +1768,6 @@ start_packet_forwarding(int with_tx_first)
struct rte_port *port;
unsigned int i;
portid_t pt_id;
streamid_t sm_id;
if (strcmp(cur_fwd_eng->fwd_mode_name, "rxonly") == 0 && !nb_rxq)
rte_exit(EXIT_FAILURE, "rxq are 0, cannot use rxonly fwd mode\n");
@ -1686,32 +1818,12 @@ start_packet_forwarding(int with_tx_first)
pkt_fwd_config_display(&cur_fwd_config);
rxtx_config_display();
fwd_stats_reset();
for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++) {
pt_id = fwd_ports_ids[i];
port = &ports[pt_id];
rte_eth_stats_get(pt_id, &port->stats);
port->tx_dropped = 0;
map_port_queue_stats_mapping_registers(pt_id, port);
}
for (sm_id = 0; sm_id < cur_fwd_config.nb_fwd_streams; sm_id++) {
fwd_streams[sm_id]->rx_packets = 0;
fwd_streams[sm_id]->tx_packets = 0;
fwd_streams[sm_id]->fwd_dropped = 0;
fwd_streams[sm_id]->rx_bad_ip_csum = 0;
fwd_streams[sm_id]->rx_bad_l4_csum = 0;
fwd_streams[sm_id]->rx_bad_outer_l4_csum = 0;
#ifdef RTE_TEST_PMD_RECORD_BURST_STATS
memset(&fwd_streams[sm_id]->rx_burst_stats, 0,
sizeof(fwd_streams[sm_id]->rx_burst_stats));
memset(&fwd_streams[sm_id]->tx_burst_stats, 0,
sizeof(fwd_streams[sm_id]->tx_burst_stats));
#endif
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
fwd_streams[sm_id]->core_cycles = 0;
#endif
}
if (with_tx_first) {
port_fwd_begin = tx_only_engine.port_fwd_begin;
if (port_fwd_begin != NULL) {
@ -1735,23 +1847,10 @@ start_packet_forwarding(int with_tx_first)
void
stop_packet_forwarding(void)
{
struct rte_eth_stats stats;
struct rte_port *port;
port_fwd_end_t port_fwd_end;
port_fwd_end_t port_fwd_end;
lcoreid_t lc_id;
portid_t pt_id;
int i;
portid_t pt_id;
streamid_t sm_id;
lcoreid_t lc_id;
uint64_t total_recv;
uint64_t total_xmit;
uint64_t total_rx_dropped;
uint64_t total_tx_dropped;
uint64_t total_rx_nombuf;
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
uint64_t fwd_cycles;
#endif
static const char *acc_stats_border = "+++++++++++++++";
if (test_done) {
printf("Packet forwarding not started\n");
@ -1769,87 +1868,9 @@ stop_packet_forwarding(void)
(*port_fwd_end)(pt_id);
}
}
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
fwd_cycles = 0;
#endif
for (sm_id = 0; sm_id < cur_fwd_config.nb_fwd_streams; sm_id++) {
struct fwd_stream *fs = fwd_streams[sm_id];
if (cur_fwd_config.nb_fwd_streams >
cur_fwd_config.nb_fwd_ports) {
fwd_stream_stats_display(sm_id);
ports[fs->tx_port].tx_stream = NULL;
ports[fs->rx_port].rx_stream = NULL;
} else {
ports[fs->tx_port].tx_stream = fs;
ports[fs->rx_port].rx_stream = fs;
}
ports[fs->tx_port].tx_dropped += fs->fwd_dropped;
ports[fs->rx_port].rx_bad_ip_csum += fs->rx_bad_ip_csum;
ports[fs->rx_port].rx_bad_l4_csum += fs->rx_bad_l4_csum;
ports[fs->rx_port].rx_bad_outer_l4_csum +=
fs->rx_bad_outer_l4_csum;
fwd_stats_display();
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
fwd_cycles = (uint64_t) (fwd_cycles +
fwd_streams[sm_id]->core_cycles);
#endif
}
total_recv = 0;
total_xmit = 0;
total_rx_dropped = 0;
total_tx_dropped = 0;
total_rx_nombuf = 0;
for (i = 0; i < cur_fwd_config.nb_fwd_ports; i++) {
pt_id = fwd_ports_ids[i];
port = &ports[pt_id];
rte_eth_stats_get(pt_id, &stats);
stats.ipackets -= port->stats.ipackets;
port->stats.ipackets = 0;
stats.opackets -= port->stats.opackets;
port->stats.opackets = 0;
stats.ibytes -= port->stats.ibytes;
port->stats.ibytes = 0;
stats.obytes -= port->stats.obytes;
port->stats.obytes = 0;
stats.imissed -= port->stats.imissed;
port->stats.imissed = 0;
stats.oerrors -= port->stats.oerrors;
port->stats.oerrors = 0;
stats.rx_nombuf -= port->stats.rx_nombuf;
port->stats.rx_nombuf = 0;
total_recv += stats.ipackets;
total_xmit += stats.opackets;
total_rx_dropped += stats.imissed;
total_tx_dropped += port->tx_dropped;
total_rx_nombuf += stats.rx_nombuf;
fwd_port_stats_display(pt_id, &stats);
}
printf("\n %s Accumulated forward statistics for all ports"
"%s\n",
acc_stats_border, acc_stats_border);
printf(" RX-packets: %-14"PRIu64" RX-dropped: %-14"PRIu64"RX-total: "
"%-"PRIu64"\n"
" TX-packets: %-14"PRIu64" TX-dropped: %-14"PRIu64"TX-total: "
"%-"PRIu64"\n",
total_recv, total_rx_dropped, total_recv + total_rx_dropped,
total_xmit, total_tx_dropped, total_xmit + total_tx_dropped);
if (total_rx_nombuf > 0)
printf(" RX-nombufs: %-14"PRIu64"\n", total_rx_nombuf);
printf(" %s++++++++++++++++++++++++++++++++++++++++++++++"
"%s\n",
acc_stats_border, acc_stats_border);
#ifdef RTE_TEST_PMD_RECORD_CORE_CYCLES
if (total_recv > 0)
printf("\n CPU cycles/packet=%u (total cycles="
"%"PRIu64" / total RX packets=%"PRIu64")\n",
(unsigned int)(fwd_cycles / total_recv),
fwd_cycles, total_recv);
#endif
printf("\nDone.\n");
test_done = 1;
}

9
app/test-pmd/testpmd.h
View File

@ -164,19 +164,12 @@ struct rte_port {
struct rte_eth_conf dev_conf; /**< Port configuration. */
struct ether_addr eth_addr; /**< Port ethernet address */
struct rte_eth_stats stats; /**< Last port statistics */
uint64_t tx_dropped; /**< If no descriptor in TX ring */
struct fwd_stream *rx_stream; /**< Port RX stream, if unique */
struct fwd_stream *tx_stream; /**< Port TX stream, if unique */
unsigned int socket_id; /**< For NUMA support */
uint16_t parse_tunnel:1; /**< Parse internal headers */
uint16_t tso_segsz; /**< Segmentation offload MSS for non-tunneled packets. */
uint16_t tunnel_tso_segsz; /**< Segmentation offload MSS for tunneled pkts. */
uint16_t tx_vlan_id;/**< The tag ID */
uint16_t tx_vlan_id_outer;/**< The outer tag ID */
uint64_t rx_bad_ip_csum; /**< rx pkts with bad ip checksum */
uint64_t rx_bad_l4_csum; /**< rx pkts with bad l4 checksum */
uint64_t rx_bad_outer_l4_csum;
/**< rx pkts with bad outer l4 checksum */
uint8_t tx_queue_stats_mapping_enabled;
uint8_t rx_queue_stats_mapping_enabled;
volatile uint16_t port_status; /**< port started or not */
@ -767,6 +760,8 @@ char *list_pkt_forwarding_modes(void);
char *list_pkt_forwarding_retry_modes(void);
void set_pkt_forwarding_mode(const char *fwd_mode);
void start_packet_forwarding(int with_tx_first);
void fwd_stats_display(void);
void fwd_stats_reset(void);
void stop_packet_forwarding(void);
void dev_set_link_up(portid_t pid);
void dev_set_link_down(portid_t pid);

36
doc/guides/testpmd_app_ug/testpmd_funcs.rst
View File

@ -336,6 +336,42 @@ Example::
Set rxonly packet forwarding mode
show fwd
~~~~~~~~
When running, forwarding engines maintain statistics from the time they have been started.
Example for the io forwarding engine, with some packet drops on the tx side::
testpmd> show fwd stats all
------- Forward Stats for RX Port= 0/Queue= 0 -> TX Port= 1/Queue= 0 -------
RX-packets: 274293770 TX-packets: 274293642 TX-dropped: 128
------- Forward Stats for RX Port= 1/Queue= 0 -> TX Port= 0/Queue= 0 -------
RX-packets: 274301850 TX-packets: 274301850 TX-dropped: 0
---------------------- Forward statistics for port 0 ----------------------
RX-packets: 274293802 RX-dropped: 0 RX-total: 274293802
TX-packets: 274301862 TX-dropped: 0 TX-total: 274301862
----------------------------------------------------------------------------
---------------------- Forward statistics for port 1 ----------------------
RX-packets: 274301894 RX-dropped: 0 RX-total: 274301894
TX-packets: 274293706 TX-dropped: 128 TX-total: 274293834
----------------------------------------------------------------------------
+++++++++++++++ Accumulated forward statistics for all ports+++++++++++++++
RX-packets: 548595696 RX-dropped: 0 RX-total: 548595696
TX-packets: 548595568 TX-dropped: 128 TX-total: 548595696
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
clear fwd
~~~~~~~~~
Clear the forwarding engines statistics::
testpmd> clear fwd stats all
read rxd
~~~~~~~~