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authorFlorin Coras <fcoras@cisco.com>2020-03-11 18:30:48 +0000
committerDave Barach <openvpp@barachs.net>2020-03-23 22:21:36 +0000
commitdb88ffba2a713442cb632382889c768e682fd47f (patch)
treea6986024ae149e7cd4ac6924fd7a414ec87988a6 /src/vnet/tcp/tcp_bt.c
parent8ceb44a893e05c53e6d7de36a32215f549953eb0 (diff)
tcp: add lost and in flight to byte tracker
Type: improvement Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I3b0041d72d835cbb11e803cc56ac4c68a68238a0
Diffstat (limited to 'src/vnet/tcp/tcp_bt.c')
-rw-r--r--src/vnet/tcp/tcp_bt.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/src/vnet/tcp/tcp_bt.c b/src/vnet/tcp/tcp_bt.c
index b6649444eb5..e8dc5c9c068 100644
--- a/src/vnet/tcp/tcp_bt.c
+++ b/src/vnet/tcp/tcp_bt.c
@@ -275,6 +275,8 @@ tcp_bt_alloc_tx_sample (tcp_connection_t * tc, u32 min_seq, u32 max_seq)
bts->tx_time = tcp_time_now_us (tc->c_thread_index);
bts->first_tx_time = tc->first_tx_time;
bts->flags |= tc->app_limited ? TCP_BTS_IS_APP_LIMITED : 0;
+ bts->tx_in_flight = tcp_flight_size (tc);
+ bts->tx_lost = tc->lost;
return bts;
}
@@ -475,6 +477,8 @@ tcp_bt_sample_to_rate_sample (tcp_connection_t * tc, tcp_bt_sample_t * bts,
rs->interval_time = bts->tx_time - bts->first_tx_time;
rs->rtt_time = tc->delivered_time - bts->tx_time;
rs->flags = bts->flags;
+ rs->tx_in_flight = bts->tx_in_flight;
+ rs->tx_lost = bts->tx_lost;
tc->first_tx_time = bts->tx_time;
}
@@ -586,6 +590,8 @@ tcp_bt_sample_delivery_rate (tcp_connection_t * tc, tcp_rate_sample_t * rs)
if (PREDICT_FALSE (tc->flags & TCP_CONN_FINSNT))
return;
+ tc->lost += tc->sack_sb.last_lost_bytes;
+
delivered = tc->bytes_acked + tc->sack_sb.last_sacked_bytes;
if (!delivered || tc->bt->head == TCP_BTS_INVALID_INDEX)
return;
@@ -607,7 +613,8 @@ tcp_bt_sample_delivery_rate (tcp_connection_t * tc, tcp_rate_sample_t * rs)
rs->interval_time);
rs->delivered = tc->delivered - rs->prior_delivered;
rs->acked_and_sacked = delivered;
- rs->lost = tc->sack_sb.last_lost_bytes;
+ rs->last_lost = tc->sack_sb.last_lost_bytes;
+ rs->lost = tc->lost - rs->tx_lost;
}
void