diff options
| author |   Florin Coras <fcoras@cisco.com> | 2018-11-05 11:06:53 -0800 |
|---|---|---|
| committer |   Marco Varlese <marco.varlese@suse.de> | 2018-11-06 08:10:22 +0000 |
| commit | 9ece3c03133309dda1f7f7f292bd071fa1ccb0f1 (patch) | |
| tree | d976d958c8ccba43506194c31ce65bd388902666 /src/vnet/tcp/tcp.h | |
| parent | 87ee947d0b053b33571c5e33617b138236bada59 (diff) | |
tcp: dequeue acked only once per burst
Avoid dequeuing acked bytes more than once per burst for a connection.
Although the fifos do not use locks, size decrements are atomic, so they
rely on locked instructions.
Change-Id: Id65f4ea40b2c10057461402dfd0393034e6472d5
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp.h')
| -rw-r--r-- | src/vnet/tcp/tcp.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h index bd5e4f71bdb..480b924c882 100644 --- a/src/vnet/tcp/tcp.h +++ b/src/vnet/tcp/tcp.h @@ -122,6 +122,7 @@ extern timer_expiration_handler tcp_timer_retransmit_syn_handler; _(FINPNDG, "FIN pending") \ _(FRXT_PENDING, "Fast-retransmit pending") \ _(FRXT_FIRST, "Fast-retransmit first again") \ + _(DEQ_PENDING, "Pending dequeue acked") \ typedef enum _tcp_connection_flag_bits { @@ -308,6 +309,7 @@ typedef struct _tcp_connection u32 prev_ssthresh; /**< ssthresh before congestion */ u32 prev_cwnd; /**< ssthresh before congestion */ u32 bytes_acked; /**< Bytes acknowledged by current segment */ + u32 burst_acked; /**< Bytes acknowledged in current burst */ u32 snd_rxt_bytes; /**< Retransmitted bytes */ u32 snd_rxt_ts; /**< Timestamp when first packet is retransmitted */ u32 tsecr_last_ack; /**< Timestamp echoed to us in last healthy ACK */ @@ -392,6 +394,7 @@ typedef struct tcp_worker_ctx_ now doing fast rxt */ u32 *postponed_fast_rxt; /**< vector of connections that will do fast rxt */ + u32 *pending_deq_acked; vlib_main_t *vm; /**< pointer to vm */ CLIB_CACHE_LINE_ALIGN_MARK (cacheline1); |