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The measurements are reported in term of packet per second unit. The forwarding will start after the end of insertion/deletion operations. The support has single and multi performance measurements. Signed-off-by: Wisam Jaddo --- app/test-flow-perf/main.c | 301 +++++++++++++++++++++++++ doc/guides/rel_notes/release_20_05.rst | 1 + doc/guides/tools/flow-perf.rst | 6 + 3 files changed, 308 insertions(+) diff --git a/app/test-flow-perf/main.c b/app/test-flow-perf/main.c index da54bbdef..3918cc132 100644 --- a/app/test-flow-perf/main.c +++ b/app/test-flow-perf/main.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include @@ -47,15 +48,45 @@ static uint8_t flow_group; static uint32_t flow_items; static uint32_t flow_actions; static uint32_t flow_attrs; + static volatile bool force_quit; static bool dump_iterations; static bool delete_flag; static bool dump_socket_mem_flag; +static bool enable_fwd; + static struct rte_mempool *mbuf_mp; static uint32_t nb_lcores; static uint32_t flows_count; static uint32_t iterations_number; static uint32_t hairpinq; +static uint32_t nb_lcores; + +#define MAX_PKT_BURST 32 +#define LCORE_MODE_PKT 1 +#define LCORE_MODE_STATS 2 +#define MAX_STREAMS 64 +#define MAX_LCORES 64 + +struct stream { + int tx_port; + int tx_queue; + int rx_port; + int rx_queue; +}; + +struct lcore_info { + int mode; + int streams_nb; + struct stream streams[MAX_STREAMS]; + /* stats */ + uint64_t tx_pkts; + uint64_t tx_drops; + uint64_t rx_pkts; + struct rte_mbuf *pkts[MAX_PKT_BURST]; +} __attribute__((__aligned__(64))); /* let it be cacheline aligned */ + +static struct lcore_info lcore_infos[MAX_LCORES]; static void usage(char *progname) @@ -69,6 +100,8 @@ usage(char *progname) printf(" --deletion-rate: Enable deletion rate" " calculations\n"); printf(" --dump-socket-mem: To dump all socket memory\n"); + printf(" --enable-fwd: To enable packets forwarding" + " after insertion\n"); printf("To set flow attributes:\n"); printf(" --ingress: set ingress attribute in flows\n"); @@ -253,6 +286,7 @@ args_parse(int argc, char **argv) { "dump-iterations", 0, 0, 0 }, { "deletion-rate", 0, 0, 0 }, { "dump-socket-mem", 0, 0, 0 }, + { "enable-fwd", 0, 0, 0 }, /* Attributes */ { "ingress", 0, 0, 0 }, { "egress", 0, 0, 0 }, @@ -366,6 +400,9 @@ args_parse(int argc, char **argv) if (strcmp(lgopts[opt_idx].name, "dump-socket-mem") == 0) dump_socket_mem_flag = true; + if (strcmp(lgopts[opt_idx].name, + "enable-fwd") == 0) + enable_fwd = true; break; default: fprintf(stderr, "Invalid option: %s\n", argv[optind]); @@ -635,6 +672,265 @@ signal_handler(int signum) } } +static inline uint16_t +do_rx(struct lcore_info *li, uint16_t rx_port, uint16_t rx_queue) +{ + uint16_t cnt = 0; + cnt = rte_eth_rx_burst(rx_port, rx_queue, li->pkts, MAX_PKT_BURST); + li->rx_pkts += cnt; + return cnt; +} + +static inline void +do_tx(struct lcore_info *li, uint16_t cnt, uint16_t tx_port, + uint16_t tx_queue) +{ + uint16_t nr_tx = 0; + uint16_t i; + + nr_tx = rte_eth_tx_burst(tx_port, tx_queue, li->pkts, cnt); + li->tx_pkts += nr_tx; + li->tx_drops += cnt - nr_tx; + + for (i = nr_tx; i < cnt; i++) + rte_pktmbuf_free(li->pkts[i]); +} + +/* + * Method to convert numbers into pretty numbers that easy + * to read. The design here is to add comma after each three + * digits and set all of this inside buffer. + * + * For example if n = 1799321, the output will be + * 1,799,321 after this method which is easier to read. + */ +static char * +pretty_number(uint64_t n, char *buf) +{ + char p[6][4]; + int i = 0; + int off = 0; + + while (n > 1000) { + sprintf(p[i], "%03d", (int)(n % 1000)); + n /= 1000; + i += 1; + } + + sprintf(p[i++], "%d", (int)n); + + while (i--) + off += sprintf(buf + off, "%s,", p[i]); + buf[strlen(buf) - 1] = '\0'; + + return buf; +} + +static void +packet_per_second_stats(void) +{ + struct lcore_info *old; + struct lcore_info *li, *oli; + int nr_lines = 0; + int i; + + old = rte_zmalloc("old", + sizeof(struct lcore_info) * MAX_LCORES, 0); + if (old == NULL) + rte_exit(EXIT_FAILURE, "No Memory available!"); + + memcpy(old, lcore_infos, + sizeof(struct lcore_info) * MAX_LCORES); + + while (!force_quit) { + uint64_t total_tx_pkts = 0; + uint64_t total_rx_pkts = 0; + uint64_t total_tx_drops = 0; + uint64_t tx_delta, rx_delta, drops_delta; + char buf[3][32]; + int nr_valid_core = 0; + + sleep(1); + + if (nr_lines) { + char go_up_nr_lines[16]; + + sprintf(go_up_nr_lines, "%c[%dA\r", 27, nr_lines); + printf("%s\r", go_up_nr_lines); + } + + printf("\n%6s %16s %16s %16s\n", "core", "tx", "tx drops", "rx"); + printf("%6s %16s %16s %16s\n", "------", "----------------", + "----------------", "----------------"); + nr_lines = 3; + for (i = 0; i < MAX_LCORES; i++) { + li = &lcore_infos[i]; + oli = &old[i]; + if (li->mode != LCORE_MODE_PKT) + continue; + + tx_delta = li->tx_pkts - oli->tx_pkts; + rx_delta = li->rx_pkts - oli->rx_pkts; + drops_delta = li->tx_drops - oli->tx_drops; + printf("%6d %16s %16s %16s\n", i, + pretty_number(tx_delta, buf[0]), + pretty_number(drops_delta, buf[1]), + pretty_number(rx_delta, buf[2])); + + total_tx_pkts += tx_delta; + total_rx_pkts += rx_delta; + total_tx_drops += drops_delta; + + nr_valid_core++; + nr_lines += 1; + } + + if (nr_valid_core > 1) { + printf("%6s %16s %16s %16s\n", "total", + pretty_number(total_tx_pkts, buf[0]), + pretty_number(total_tx_drops, buf[1]), + pretty_number(total_rx_pkts, buf[2])); + nr_lines += 1; + } + + memcpy(old, lcore_infos, + sizeof(struct lcore_info) * MAX_LCORES); + } +} + +static int +start_forwarding(void *data __rte_unused) +{ + int lcore = rte_lcore_id(); + int stream_id; + uint16_t cnt; + struct lcore_info *li = &lcore_infos[lcore]; + + if (!li->mode) + return 0; + + if (li->mode == LCORE_MODE_STATS) { + printf(":: started stats on lcore %u\n", lcore); + packet_per_second_stats(); + return 0; + } + + while (!force_quit) + for (stream_id = 0; stream_id < MAX_STREAMS; stream_id++) { + if (li->streams[stream_id].rx_port == -1) + continue; + + cnt = do_rx(li, + li->streams[stream_id].rx_port, + li->streams[stream_id].rx_queue); + if (cnt) + do_tx(li, cnt, + li->streams[stream_id].tx_port, + li->streams[stream_id].tx_queue); + } + return 0; +} + +static void +init_lcore_info(void) +{ + int i, j; + unsigned int lcore; + uint16_t nr_port; + uint16_t queue; + int port; + int stream_id = 0; + int streams_per_core; + int unassigned_streams; + int nb_fwd_streams; + nr_port = rte_eth_dev_count_avail(); + + /* First logical core is reserved for stats printing */ + lcore = rte_get_next_lcore(-1, 0, 0); + lcore_infos[lcore].mode = LCORE_MODE_STATS; + + /* + * Initialize all cores + * All cores at first must have -1 value in all streams + * This means that this stream is not used, or not set + * yet. + */ + for (i = 0; i < MAX_LCORES; i++) + for (j = 0; j < MAX_STREAMS; j++) { + lcore_infos[i].streams[j].tx_port = -1; + lcore_infos[i].streams[j].rx_port = -1; + lcore_infos[i].streams[j].tx_queue = -1; + lcore_infos[i].streams[j].rx_queue = -1; + lcore_infos[i].streams_nb = 0; + } + + /* + * Calculate the total streams count. + * Also distribute those streams count between the available + * logical cores except first core, since it's reserved for + * stats prints. + */ + nb_fwd_streams = nr_port * RXQ_NUM; + if ((int)(nb_lcores - 1) >= nb_fwd_streams) + for (i = 0; i < (int)(nb_lcores - 1); i++) { + lcore = rte_get_next_lcore(lcore, 0, 0); + lcore_infos[lcore].streams_nb = 1; + } + else { + streams_per_core = nb_fwd_streams / (nb_lcores - 1); + unassigned_streams = nb_fwd_streams % (nb_lcores - 1); + for (i = 0; i < (int)(nb_lcores - 1); i++) { + lcore = rte_get_next_lcore(lcore, 0, 0); + lcore_infos[lcore].streams_nb = streams_per_core; + if (unassigned_streams) { + lcore_infos[lcore].streams_nb++; + unassigned_streams--; + } + } + } + + /* + * Set the streams for the cores according to each logical + * core stream count. + * The streams is built on the design of what received should + * forward as well, this means that if you received packets on + * port 0 queue 0 then the same queue should forward the + * packets, using the same logical core. + */ + lcore = rte_get_next_lcore(-1, 0, 0); + for (port = 0; port < nr_port; port++) { + /* Create FWD stream */ + for (queue = 0; queue < RXQ_NUM; queue++) { + if (!lcore_infos[lcore].streams_nb || + !(stream_id % lcore_infos[lcore].streams_nb)) { + lcore = rte_get_next_lcore(lcore, 0, 0); + lcore_infos[lcore].mode = LCORE_MODE_PKT; + stream_id = 0; + } + lcore_infos[lcore].streams[stream_id].rx_queue = queue; + lcore_infos[lcore].streams[stream_id].tx_queue = queue; + lcore_infos[lcore].streams[stream_id].rx_port = port; + lcore_infos[lcore].streams[stream_id].tx_port = port; + stream_id++; + } + } + + /* Print all streams */ + printf(":: Stream -> core id[N]: (rx_port, rx_queue)->(tx_port, tx_queue)\n"); + for (i = 0; i < MAX_LCORES; i++) + for (j = 0; j < MAX_STREAMS; j++) { + /* No streams for this core */ + if (lcore_infos[i].streams[j].tx_port == -1) + break; + printf("Stream -> core id[%d]: (%d,%d)->(%d,%d)\n", + i, + lcore_infos[i].streams[j].rx_port, + lcore_infos[i].streams[j].rx_queue, + lcore_infos[i].streams[j].tx_port, + lcore_infos[i].streams[j].tx_queue); + } +} + static void init_port(void) { @@ -806,6 +1102,11 @@ main(int argc, char **argv) fprintf(stdout, ":: Memory allocation change(M): %.6lf\n", (alloc - last_alloc) / 1.0e6); + if (enable_fwd) { + init_lcore_info(); + rte_eal_mp_remote_launch(start_forwarding, NULL, CALL_MASTER); + } + RTE_ETH_FOREACH_DEV(port) { rte_flow_flush(port, &error); rte_eth_dev_stop(port); diff --git a/doc/guides/rel_notes/release_20_05.rst b/doc/guides/rel_notes/release_20_05.rst index aae1c5492..258b1e03e 100644 --- a/doc/guides/rel_notes/release_20_05.rst +++ b/doc/guides/rel_notes/release_20_05.rst @@ -220,6 +220,7 @@ New Features * Measure rte_flow insertion rate. * Measure rte_flow deletion rate. * Dump rte_flow memory consumption. + * Measure packet per second forwarding. Removed Items diff --git a/doc/guides/tools/flow-perf.rst b/doc/guides/tools/flow-perf.rst index c8cce187e..6eb3080a3 100644 --- a/doc/guides/tools/flow-perf.rst +++ b/doc/guides/tools/flow-perf.rst @@ -28,6 +28,8 @@ The current version has limitations which can be removed in future: The application also provide the ability to measure rte flow deletion rate, in addition to memory consumption before and after the flows creation. +The app supports single and multi core performance measurements. + Compiling the Application ========================= @@ -80,6 +82,10 @@ The command line options are: * ``--dump-socket-mem`` Dump the memory stats for each socket before the insertion and after. +* ``enable-fwd`` + Enable packets forwarding after insertion/deletion operations. + + Attributes: * ``--ingress`` -- 2.17.1