Move GetOutstandingBytes() call inside field trial check to avoid taking an unneccessary lock.
BUG=webrtc:7926
Review-Url: https://codereview.webrtc.org/3009673002
Cr-Original-Commit-Position: refs/heads/master@{#19540}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: a86f57e624100e8ca227fee8b726a59f3440f92f
diff --git a/modules/congestion_controller/send_side_congestion_controller.cc b/modules/congestion_controller/send_side_congestion_controller.cc
index c8fc990..fee4990 100644
--- a/modules/congestion_controller/send_side_congestion_controller.cc
+++ b/modules/congestion_controller/send_side_congestion_controller.cc
@@ -295,7 +295,8 @@
return;
transport_feedback_adapter_.OnSentPacket(sent_packet.packet_id,
sent_packet.send_time_ms);
- LimitOutstandingBytes(transport_feedback_adapter_.GetOutstandingBytes());
+ if (in_cwnd_experiment_)
+ LimitOutstandingBytes(transport_feedback_adapter_.GetOutstandingBytes());
}
void SendSideCongestionController::OnRttUpdate(int64_t avg_rtt_ms,
@@ -369,34 +370,32 @@
}
if (result.recovered_from_overuse)
probe_controller_->RequestProbe();
- LimitOutstandingBytes(transport_feedback_adapter_.GetOutstandingBytes());
+ if (in_cwnd_experiment_)
+ LimitOutstandingBytes(transport_feedback_adapter_.GetOutstandingBytes());
}
void SendSideCongestionController::LimitOutstandingBytes(
size_t num_outstanding_bytes) {
- if (!in_cwnd_experiment_)
+ RTC_DCHECK(in_cwnd_experiment_);
+ rtc::CritScope lock(&network_state_lock_);
+ rtc::Optional<int64_t> min_rtt_ms =
+ transport_feedback_adapter_.GetMinFeedbackLoopRtt();
+ // No valid RTT. Could be because send-side BWE isn't used, in which case
+ // we don't try to limit the outstanding packets.
+ if (!min_rtt_ms)
return;
- {
- rtc::CritScope lock(&network_state_lock_);
- rtc::Optional<int64_t> min_rtt_ms =
- transport_feedback_adapter_.GetMinFeedbackLoopRtt();
- // No valid RTT. Could be because send-side BWE isn't used, in which case
- // we don't try to limit the outstanding packets.
- if (!min_rtt_ms)
- return;
- const size_t kMinCwndBytes = 2 * 1500;
- size_t max_outstanding_bytes =
- std::max<size_t>((*min_rtt_ms + accepted_queue_ms_) *
- last_reported_bitrate_bps_ / 1000 / 8,
- kMinCwndBytes);
- LOG(LS_INFO) << clock_->TimeInMilliseconds()
- << " Outstanding bytes: " << num_outstanding_bytes
- << " pacer queue: " << pacer_->QueueInMs()
- << " max outstanding: " << max_outstanding_bytes;
- LOG(LS_INFO) << "Feedback rtt: " << *min_rtt_ms
- << " Bitrate: " << last_reported_bitrate_bps_;
- pause_pacer_ = num_outstanding_bytes > max_outstanding_bytes;
- }
+ const size_t kMinCwndBytes = 2 * 1500;
+ size_t max_outstanding_bytes =
+ std::max<size_t>((*min_rtt_ms + accepted_queue_ms_) *
+ last_reported_bitrate_bps_ / 1000 / 8,
+ kMinCwndBytes);
+ LOG(LS_INFO) << clock_->TimeInMilliseconds()
+ << " Outstanding bytes: " << num_outstanding_bytes
+ << " pacer queue: " << pacer_->QueueInMs()
+ << " max outstanding: " << max_outstanding_bytes;
+ LOG(LS_INFO) << "Feedback rtt: " << *min_rtt_ms
+ << " Bitrate: " << last_reported_bitrate_bps_;
+ pause_pacer_ = num_outstanding_bytes > max_outstanding_bytes;
}
std::vector<PacketFeedback>