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Issue 1408803002: relnote: Measure HOL blocking in QUIC headers stream. Flag protected by quic_measure_headers_hol_bl… (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@uma_for_hol_merge
Patch Set: get rid of git certs leakage Created 5 years, 2 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "net/quic/quic_flags.h" 5 #include "net/quic/quic_flags.h"
6 6
7 bool FLAGS_quic_allow_oversized_packets_for_test = false; 7 bool FLAGS_quic_allow_oversized_packets_for_test = false;
8 8
9 // When true, the use time based loss detection instead of nack. 9 // When true, the use time based loss detection instead of nack.
10 bool FLAGS_quic_use_time_loss_detection = false; 10 bool FLAGS_quic_use_time_loss_detection = false;
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78 bool FLAGS_shift_quic_cubic_epoch_when_app_limited = true; 78 bool FLAGS_shift_quic_cubic_epoch_when_app_limited = true;
79 79
80 // If true, accounts for available (implicitly opened) streams under a separate 80 // If true, accounts for available (implicitly opened) streams under a separate
81 // quota from open streams, which is 10 times larger. 81 // quota from open streams, which is 10 times larger.
82 bool FLAGS_allow_many_available_streams = true; 82 bool FLAGS_allow_many_available_streams = true;
83 83
84 // If true, QuicPacketReader::ReadAndDispatchPackets will only return true if 84 // If true, QuicPacketReader::ReadAndDispatchPackets will only return true if
85 // recvmmsg fills all of the passed in messages. Otherwise, it will return true 85 // recvmmsg fills all of the passed in messages. Otherwise, it will return true
86 // if recvmmsg read any messages. 86 // if recvmmsg read any messages.
87 bool FLAGS_quic_read_packets_full_recvmmsg = true; 87 bool FLAGS_quic_read_packets_full_recvmmsg = true;
88
89 // If true, QUIC will measure head of line (HOL) blocking due between
90 // streams due to packet losses on the headers stream. The
91 // measurements will be surfaced via UMA histogram
92 // Net.QuicSession.HeadersHOLBlockedTime.
93 bool FLAGS_quic_measure_headers_hol_blocking_time = true;
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