indent = format_get_indent (s) + 1;
s = format (s, "%Upacer: %U\n", format_white_space, indent,
format_transport_pacer, &tc->pacer, tc->thread_index);
+ s = format (s, "%Utransport: flags 0x%x\n", format_white_space, indent,
+ tc->flags);
}
return s;
}
now = transport_us_time_now (thread_index);
diff = now - pacer->last_update;
- s = format (s, "rate %lu bucket %lu t/p %.3f last_update %U",
+ s = format (s, "rate %lu bucket %lu t/p %.3f last_update %U idle %u",
pacer->bytes_per_sec, pacer->bucket, pacer->tokens_per_period,
- format_clib_us_time, diff);
+ format_clib_us_time, diff, pacer->idle_timeout_us);
return s;
}
u64 n_periods = (time_now - pacer->last_update);
u64 inc;
- if (PREDICT_FALSE (n_periods > 5e4))
+ if (PREDICT_FALSE (n_periods > pacer->idle_timeout_us))
{
pacer->last_update = time_now;
pacer->bucket = TRANSPORT_PACER_MIN_BURST;
return TRANSPORT_PACER_MIN_BURST;
}
- if (n_periods > 0
- && (inc = (f32) n_periods * pacer->tokens_per_period) > 10)
+ if ((inc = (f32) n_periods * pacer->tokens_per_period) > 10)
{
pacer->last_update = time_now;
pacer->bucket = clib_min (pacer->bucket + inc, pacer->bytes_per_sec);
}
static inline void
-spacer_set_pace_rate (spacer_t * pacer, u64 rate_bytes_per_sec)
+spacer_set_pace_rate (spacer_t * pacer, u64 rate_bytes_per_sec,
+ clib_us_time_t rtt)
{
ASSERT (rate_bytes_per_sec != 0);
pacer->bytes_per_sec = rate_bytes_per_sec;
pacer->tokens_per_period = rate_bytes_per_sec * CLIB_US_TIME_PERIOD;
+ pacer->idle_timeout_us = clib_max (rtt * TRANSPORT_PACER_IDLE_FACTOR,
+ TRANSPORT_PACER_MIN_IDLE);
}
static inline u64
void
transport_connection_tx_pacer_reset (transport_connection_t * tc,
- u64 rate_bytes_per_sec, u32 start_bucket)
+ u64 rate_bytes_per_sec, u32 start_bucket,
+ clib_us_time_t rtt)
{
- spacer_set_pace_rate (&tc->pacer, rate_bytes_per_sec);
+ spacer_set_pace_rate (&tc->pacer, rate_bytes_per_sec, rtt);
spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index),
start_bucket);
}
void
-transport_connection_tx_pacer_reset_bucket (transport_connection_t * tc)
+transport_connection_tx_pacer_reset_bucket (transport_connection_t * tc,
+ u32 bucket)
{
- spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index), 0);
+ spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index), bucket);
}
void
{
tc->flags |= TRANSPORT_CONNECTION_F_IS_TX_PACED;
transport_connection_tx_pacer_reset (tc, rate_bytes_per_sec,
- initial_bucket);
+ initial_bucket, 1e6);
}
void
transport_connection_tx_pacer_update (transport_connection_t * tc,
- u64 bytes_per_sec)
+ u64 bytes_per_sec, clib_us_time_t rtt)
{
- spacer_set_pace_rate (&tc->pacer, bytes_per_sec);
+ spacer_set_pace_rate (&tc->pacer, bytes_per_sec, rtt);
}
u32
transport_us_time_now (tc->thread_index));
}
-u32
-transport_connection_snd_space (transport_connection_t * tc, u16 mss)
-{
- u32 snd_space, max_paced_burst;
-
- snd_space = tp_vfts[tc->proto].send_space (tc);
- if (snd_space && transport_connection_is_tx_paced (tc))
- {
- clib_us_time_t now = transport_us_time_now (tc->thread_index);
- max_paced_burst = spacer_max_burst (&tc->pacer, now);
- max_paced_burst =
- (max_paced_burst < TRANSPORT_PACER_MIN_BURST) ? 0 : max_paced_burst;
- snd_space = clib_min (snd_space, max_paced_burst);
- return snd_space >= mss ? snd_space - snd_space % mss : snd_space;
- }
- return snd_space;
-}
-
u64
transport_connection_tx_pacer_rate (transport_connection_t * tc)
{
spacer_update_bucket (&tc->pacer, bytes);
}
+void
+transport_connection_reschedule (transport_connection_t * tc)
+{
+ tc->flags &= ~TRANSPORT_CONNECTION_F_DESCHED;
+ transport_connection_tx_pacer_reset_bucket (tc, TRANSPORT_PACER_MIN_BURST);
+ if (transport_max_tx_dequeue (tc))
+ sesssion_reschedule_tx (tc);
+ else
+ {
+ session_t *s = session_get (tc->s_index, tc->thread_index);
+ svm_fifo_unset_event (s->tx_fifo);
+ if (svm_fifo_max_dequeue_cons (s->tx_fifo))
+ if (svm_fifo_set_event (s->tx_fifo))
+ sesssion_reschedule_tx (tc);
+ }
+}
+
void
transport_update_time (clib_time_type_t time_now, u8 thread_index)
{