diff options
Diffstat (limited to 'src/vnet/tcp')
| -rw-r--r-- | src/vnet/tcp/tcp.h | 14 | ||||
| -rw-r--r-- | src/vnet/tcp/tcp_bt.c | 17 |
2 files changed, 22 insertions, 9 deletions
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h index d736685771d..7ccc06aea9c 100644 --- a/src/vnet/tcp/tcp.h +++ b/src/vnet/tcp/tcp.h @@ -249,18 +249,24 @@ typedef struct tcp_bt_sample_ u32 prev; /**< Previous sample index in list */ u32 min_seq; /**< Min seq number in sample */ u32 max_seq; /**< Max seq number. Set for rxt samples */ - u64 delivered; /**< Total delivered when sample taken */ + u64 delivered; /**< Total delivered bytes for sample */ f64 delivered_time; /**< Delivered time when sample taken */ + f64 tx_time; /**< Transmit time for the burst */ u64 tx_rate; /**< Tx pacing rate */ tcp_bts_flags_t flags; /**< Sample flag */ } tcp_bt_sample_t; typedef struct tcp_rate_sample_ { - u64 sample_delivered; /**< Delivered of sample used for rate */ - u32 delivered; /**< Bytes delivered in ack time */ - f64 ack_time; /**< Time to ack the bytes delivered */ + u64 prior_delivered; /**< Delivered of sample used for rate, i.e., + total bytes delivered at prior_time */ + f64 prior_time; /**< Delivered time of sample used for rate */ + f64 interval_time; /**< Time to ack the bytes delivered */ + f64 rtt_time; /**< RTT for sample */ u64 tx_rate; /**< Tx pacing rate */ + u32 delivered; /**< Bytes delivered in interval_time */ + u32 acked_and_sacked; /**< Bytes acked + sacked now */ + u32 lost; /**< Bytes lost now */ tcp_bts_flags_t flags; /**< Rate sample flags from bt sample */ } tcp_rate_sample_t; diff --git a/src/vnet/tcp/tcp_bt.c b/src/vnet/tcp/tcp_bt.c index 74947474b53..dd3d9539d9a 100644 --- a/src/vnet/tcp/tcp_bt.c +++ b/src/vnet/tcp/tcp_bt.c @@ -242,6 +242,7 @@ tcp_bt_alloc_tx_sample (tcp_connection_t * tc, u32 min_seq) bts->delivered = tc->delivered; bts->delivered_time = tc->delivered_time; bts->tx_rate = transport_connection_tx_pacer_rate (&tc->connection); + bts->tx_time = tcp_time_now_us (tc->c_thread_index); bts->flags |= tc->app_limited ? TCP_BTS_IS_APP_LIMITED : 0; return bts; } @@ -268,7 +269,7 @@ tcp_bt_track_tx (tcp_connection_t * tc) tcp_bt_sample_t *bts, *tail; u32 bts_index; - if (!tcp_flight_size (tc)) + if (tc->snd_una == tc->snd_nxt) tc->delivered_time = tcp_time_now_us (tc->c_thread_index); bts = tcp_bt_alloc_tx_sample (tc, tc->snd_nxt); @@ -415,12 +416,12 @@ static void tcp_bt_sample_to_rate_sample (tcp_connection_t * tc, tcp_bt_sample_t * bts, tcp_rate_sample_t * rs) { - if (rs->sample_delivered && rs->sample_delivered >= bts->delivered) + if (rs->prior_delivered && rs->prior_delivered >= bts->delivered) return; - rs->sample_delivered = bts->delivered; - rs->delivered = tc->delivered - bts->delivered; - rs->ack_time = tc->delivered_time - bts->delivered_time; + rs->prior_delivered = bts->delivered; + rs->prior_time = bts->delivered_time; + rs->rtt_time = bts->tx_time; rs->tx_rate = bts->tx_rate; rs->flags = bts->flags; } @@ -527,6 +528,12 @@ tcp_bt_sample_delivery_rate (tcp_connection_t * tc, tcp_rate_sample_t * rs) if (tc->sack_sb.last_sacked_bytes) tcp_bt_walk_samples_ooo (tc, rs); + + rs->interval_time = tc->delivered_time - rs->prior_time; + rs->delivered = tc->delivered - rs->prior_delivered; + rs->rtt_time = tc->delivered_time - rs->rtt_time; + rs->acked_and_sacked = delivered; + rs->lost = tc->sack_sb.last_lost_bytes; } void |