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-rw-r--r--lib/librte_latencystats/rte_latencystats.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/librte_latencystats/rte_latencystats.c b/lib/librte_latencystats/rte_latencystats.c
index 1fdec68e..5715549e 100644
--- a/lib/librte_latencystats/rte_latencystats.c
+++ b/lib/librte_latencystats/rte_latencystats.c
@@ -125,8 +125,11 @@ add_time_stamps(uint16_t pid __rte_unused,
for (i = 0; i < nb_pkts; i++) {
diff_tsc = now - prev_tsc;
timer_tsc += diff_tsc;
- if (timer_tsc >= samp_intvl) {
+
+ if ((pkts[i]->ol_flags & PKT_RX_TIMESTAMP) == 0
+ && (timer_tsc >= samp_intvl)) {
pkts[i]->timestamp = now;
+ pkts[i]->ol_flags |= PKT_RX_TIMESTAMP;
timer_tsc = 0;
}
prev_tsc = now;
@@ -156,7 +159,7 @@ calc_latency(uint16_t pid __rte_unused,
now = rte_rdtsc();
for (i = 0; i < nb_pkts; i++) {
- if (pkts[i]->timestamp)
+ if (pkts[i]->ol_flags & PKT_RX_TIMESTAMP)
latency[cnt++] = now - pkts[i]->timestamp;
}