diff options
Diffstat (limited to 'VNFs/DPPD-PROX/handle_lat.c')
| -rw-r--r-- | VNFs/DPPD-PROX/handle_lat.c | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/VNFs/DPPD-PROX/handle_lat.c b/VNFs/DPPD-PROX/handle_lat.c index 99740c11..550f3f55 100644 --- a/VNFs/DPPD-PROX/handle_lat.c +++ b/VNFs/DPPD-PROX/handle_lat.c @@ -86,6 +86,11 @@ struct rx_pkt_meta_data { uint32_t bytes_after_in_bulk; }; +struct loss_buffer { + uint32_t packet_id; + uint32_t n; +}; + struct task_lat { struct task_base base; uint64_t limit; @@ -111,11 +116,15 @@ struct task_lat { struct rx_pkt_meta_data *rx_pkt_meta; // Following fields are only used when starting or stopping, not in general runtime uint64_t *prev_tx_packet_index; + FILE *fp_loss; FILE *fp_rx; FILE *fp_tx; struct prox_port_cfg *port; uint64_t *bytes_to_tsc; uint64_t *previous_packet; + uint32_t loss_buffer_size; + struct loss_buffer *loss_buffer; + uint32_t loss_id; }; /* This function calculate the difference between rx and tx_time * Both values are uint32_t (see handle_lat_bulk) @@ -402,6 +411,12 @@ static void lat_stop(struct task_base *tbase) task_lat_reset_eld(task); memset(task->previous_packet, 0, sizeof(task->previous_packet) * task->generator_count); } + if (task->loss_id) { + for (uint i = 0; i < task->loss_id; i++) { + fprintf(task->fp_loss, "packet %d: %d\n", task->loss_buffer[i].packet_id, task->loss_buffer[i].n); + } + } + task->lat_test->lost_packets = 0; if (task->latency_buffer) lat_write_latency_to_file(task); } @@ -637,7 +652,14 @@ static int handle_lat_bulk(struct task_base *tbase, struct rte_mbuf **mbufs, uin } lat_test_check_ordering(task, task->lat_test, packet_id, generator_id); lat_test_check_duplicate(task, task->lat_test, packet_id, generator_id); - lat_test_add_lost(task->lat_test, task_lat_early_loss_detect(task, packet_id, generator_id)); + uint32_t loss = task_lat_early_loss_detect(task, packet_id, generator_id); + if (loss) { + lat_test_add_lost(task->lat_test, loss); + if (task->loss_id < task->loss_buffer_size) { + task->loss_buffer[task->loss_id].packet_id = packet_id; + task->loss_buffer[task->loss_id++].n = loss; + } + } } else { generator_id = 0; packet_id = task->rx_packet_index; @@ -780,6 +802,11 @@ static void init_task_lat(struct task_base *tbase, struct task_args *targ) init_task_lat_latency_buffer(task, targ->lconf->id); } + char name[256]; + sprintf(name, "loss_%u.txt", targ->lconf->id); + task->fp_loss = fopen(name, "w+"); + PROX_PANIC(task->fp_loss == NULL, "Failed to open %s\n", name); + if (targ->bucket_size < DEFAULT_BUCKET_SIZE) { targ->bucket_size = DEFAULT_BUCKET_SIZE; } @@ -832,9 +859,14 @@ static void init_task_lat(struct task_base *tbase, struct task_args *targ) (uint8_t)(port - prox_port_cfg), 8 * bytes_per_hz / 1000000); } } + task->loss_buffer_size = targ->loss_buffer_size; + task->loss_buffer = prox_zmalloc(task->loss_buffer_size * sizeof(struct loss_buffer), rte_lcore_to_socket_id(targ->lconf->id)); + PROX_PANIC(task->loss_buffer == NULL, + "Failed to allocate %lu bytes (in huge pages) for loss_buffer\n", task->loss_buffer_size * sizeof(struct loss_buffer)); + task->bytes_to_tsc = prox_zmalloc(max_frame_size * sizeof(task->bytes_to_tsc[0]) * MAX_PKT_BURST, rte_lcore_to_socket_id(targ->lconf->id)); PROX_PANIC(task->bytes_to_tsc == NULL, - "Failed to allocate %u bytes (in huge pages) for bytes_to_tsc\n", max_frame_size); + "Failed to allocate %lu bytes (in huge pages) for bytes_to_tsc\n", max_frame_size * sizeof(task->bytes_to_tsc[0]) * MAX_PKT_BURST); // There are cases where hz estimate might be slighly over-estimated // This results in too much extrapolation |