test: dmafwd: packet cleanup counter add

dmafwd sends the packets in multiple of burst size. If the number of
packets to be sent are not in multiple of burst size,
(num pkts to send % burst size) packets are not sent.

This patch adds a stats counter "pkt_cleanup" for the packets that are
not sent.

Signed-off-by: Amit Prakash Shukla <[email protected]>
Reviewed-by: Tuomas Taipale <[email protected]>

test/performance/odp_dmafwd.c

@@ -84,6 +84,7 @@ typedef struct {
 	uint64_t sched_cc;
 	uint64_t tot_cc;
 	uint64_t sched_rounds;
+	uint64_t pkt_cleanup;
 } stats_t;
 
 typedef struct ODP_ALIGNED_CACHE {
@@ -1122,10 +1123,12 @@ static inline void pop_packets(pkt_vec_t *pkt_vec, int num_procd)
 		pkt_vec->pkts[i] = pkt_vec->pkts[j];
 }
 
-static void free_pending_packets(pkt_vec_t pkt_vecs[], uint32_t num_ifs)
+static void free_pending_packets(pkt_vec_t pkt_vecs[], uint32_t num_ifs, stats_t *stats)
 {
-	for (uint32_t i = 0U; i < num_ifs; ++i)
+	for (uint32_t i = 0U; i < num_ifs; ++i) {
+		stats->pkt_cleanup += pkt_vecs[i].num;
 		odp_packet_free_multi(pkt_vecs[i].pkts, pkt_vecs[i].num);
+	}
 }
 
 static int process_packets(void *args)
@@ -1198,7 +1201,7 @@ static int process_packets(void *args)
 	stats->sched_cc = cdiff;
 	stats->tot_cc = odp_cpu_cycles_diff(c2, c1);
 	stats->sched_rounds = rounds;
-	free_pending_packets(pkt_vecs, num_ifs);
+	free_pending_packets(pkt_vecs, num_ifs, stats);
 	odp_barrier_wait(&config->prog_config->term_barrier);
 
 	if (config->prog_config->drain_fn)
@@ -1351,12 +1354,14 @@ static void print_stats(const prog_config_t *config)
 
 		printf("        packets forwarded:%s%" PRIu64 "\n"
 		       "        packets dropped:  %s%" PRIu64 "\n"
+		       "        packets cleanup:  %s%" PRIu64 "\n"
 		       "        call cycles per schedule round:\n"
 		       "            total:    %" PRIu64 "\n"
 		       "            schedule: %" PRIu64 "\n"
 		       "            rounds:   %" PRIu64 "\n", align2, stats->fwd_pkts, align2,
-		       stats->discards, DIV_IF(stats->tot_cc, stats->sched_rounds),
-		       DIV_IF(stats->sched_cc, stats->sched_rounds), stats->sched_rounds);
+		       stats->discards, align2, stats->pkt_cleanup, DIV_IF(stats->tot_cc,
+		       stats->sched_rounds), DIV_IF(stats->sched_cc, stats->sched_rounds),
+		       stats->sched_rounds);
 	}
 
 	printf("\n==================\n");