ae1f8f59ac
Before this CL, the RemoteEstimatorProxy used a std::map to track which arrival time a packet with a certain sequence number was received at. While this works, it's fairly slow as most manipulations and insertions are O(log(N)) and there were quite many of them. By taking advantage that sequence numbers generally are received in sequence, recording a packet is now amortized O(1). Also other operations such as creating the periodic feedback reports, are also much faster as it previously was done by searching quite a few times in that map. In highly loaded Media Servers, RemoteEstimatorProxy's usage of std::map attributes to around 0.52% CPU. Bug: webrtc:12689 Change-Id: I3dd58105f9fbfb111f176833cd4aa6b040c0e01d Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/217388 Reviewed-by: Björn Terelius <terelius@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Commit-Queue: Victor Boivie <boivie@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33979}
136 lines
4.0 KiB
Plaintext
136 lines
4.0 KiB
Plaintext
# Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
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#
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# Use of this source code is governed by a BSD-style license
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# that can be found in the LICENSE file in the root of the source
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# tree. An additional intellectual property rights grant can be found
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# in the file PATENTS. All contributing project authors may
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# be found in the AUTHORS file in the root of the source tree.
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import("../../webrtc.gni")
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rtc_library("remote_bitrate_estimator") {
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sources = [
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"aimd_rate_control.cc",
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"aimd_rate_control.h",
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"bwe_defines.cc",
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"include/bwe_defines.h",
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"include/remote_bitrate_estimator.h",
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"inter_arrival.cc",
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"inter_arrival.h",
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"overuse_detector.cc",
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"overuse_detector.h",
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"overuse_estimator.cc",
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"overuse_estimator.h",
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"packet_arrival_map.cc",
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"packet_arrival_map.h",
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"remote_bitrate_estimator_abs_send_time.cc",
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"remote_bitrate_estimator_abs_send_time.h",
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"remote_bitrate_estimator_single_stream.cc",
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"remote_bitrate_estimator_single_stream.h",
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"remote_estimator_proxy.cc",
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"remote_estimator_proxy.h",
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"test/bwe_test_logging.h",
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]
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if (rtc_enable_bwe_test_logging) {
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defines = [ "BWE_TEST_LOGGING_COMPILE_TIME_ENABLE=1" ]
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sources += [ "test/bwe_test_logging.cc" ]
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} else {
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defines = [ "BWE_TEST_LOGGING_COMPILE_TIME_ENABLE=0" ]
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}
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deps = [
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"../../api:network_state_predictor_api",
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"../../api:rtp_headers",
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"../../api/transport:field_trial_based_config",
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"../../api/transport:network_control",
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"../../api/transport:webrtc_key_value_config",
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"../../api/units:data_rate",
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"../../api/units:timestamp",
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"../../modules:module_api",
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"../../modules:module_api_public",
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"../../modules/congestion_controller/goog_cc:link_capacity_estimator",
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"../../modules/rtp_rtcp:rtp_rtcp_format",
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"../../rtc_base:checks",
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"../../rtc_base:rtc_base_approved",
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"../../rtc_base:rtc_numerics",
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"../../rtc_base:safe_minmax",
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"../../rtc_base/experiments:field_trial_parser",
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"../../rtc_base/synchronization:mutex",
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"../../system_wrappers",
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"../../system_wrappers:field_trial",
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"../../system_wrappers:metrics",
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]
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absl_deps = [
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"//third_party/abseil-cpp/absl/strings",
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"//third_party/abseil-cpp/absl/types:optional",
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]
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}
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if (!build_with_chromium) {
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rtc_library("bwe_rtp") {
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testonly = true
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sources = [
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"tools/bwe_rtp.cc",
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"tools/bwe_rtp.h",
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]
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deps = [
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":remote_bitrate_estimator",
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"../../rtc_base:rtc_base_approved",
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"../../test:rtp_test_utils",
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"../rtp_rtcp",
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]
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absl_deps = [
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"//third_party/abseil-cpp/absl/flags:flag",
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"//third_party/abseil-cpp/absl/flags:parse",
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]
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}
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rtc_executable("rtp_to_text") {
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testonly = true
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sources = [ "tools/rtp_to_text.cc" ]
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deps = [
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":bwe_rtp",
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"../../modules/rtp_rtcp",
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"../../rtc_base:macromagic",
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"../../rtc_base:stringutils",
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"../../test:rtp_test_utils",
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]
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}
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}
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if (rtc_include_tests) {
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rtc_library("remote_bitrate_estimator_unittests") {
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testonly = true
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sources = [
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"aimd_rate_control_unittest.cc",
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"inter_arrival_unittest.cc",
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"overuse_detector_unittest.cc",
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"packet_arrival_map_test.cc",
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"remote_bitrate_estimator_abs_send_time_unittest.cc",
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"remote_bitrate_estimator_single_stream_unittest.cc",
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"remote_bitrate_estimator_unittest_helper.cc",
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"remote_bitrate_estimator_unittest_helper.h",
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"remote_estimator_proxy_unittest.cc",
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]
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deps = [
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":remote_bitrate_estimator",
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"..:module_api_public",
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"../../api/transport:field_trial_based_config",
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"../../api/transport:mock_network_control",
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"../../api/transport:network_control",
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"../../rtc_base",
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"../../rtc_base:checks",
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"../../rtc_base:rtc_base_approved",
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"../../system_wrappers",
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"../../test:field_trial",
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"../../test:fileutils",
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"../../test:test_support",
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"../pacing",
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"../rtp_rtcp:rtp_rtcp_format",
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]
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}
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}
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