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Add new qlog type for l4s weight updates

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Summary:
This helps with tuning l4s reaction in Cubic and debugging l4s in general.

To avoid spamming the qlog, an l4s weights update is only logged if new CE marks are echoed from the peer.

Reviewed By: sharmafb

Differential Revision: D57874704

fbshipit-source-id: 9c3f139aec73fc0dbd8d38e2237d6a6478cf1e3d
This commit is contained in:
Joseph Beshay
2024-05-29 19:17:38 -07:00
committed by Facebook GitHub Bot
parent 05b4eb9238
commit 1ad1b0789b
7 changed files with 68 additions and 1 deletions
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10
quic/logging/FileQLogger.cpp
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@@ -499,6 +499,16 @@ void FileQLogger::addPriorityUpdate(
streamId, urgency, incremental, refTime));
}
void FileQLogger::addL4sWeightUpdate(
double l4sWeight,
uint32_t newEct1,
uint32_t newCe) {
auto refTime = std::chrono::duration_cast<std::chrono::microseconds>(
std::chrono::steady_clock::now().time_since_epoch());
handleEvent(std::make_unique<quic::QLogL4sWeightUpdateEvent>(
l4sWeight, newEct1, newCe, refTime));
}
void FileQLogger::outputLogsToFile(const std::string& path, bool prettyJson) {
if (streaming_) {
return;