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First version of HTTP bandwidth throttling.

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Adds throttling based on on average bandwidth usage per HTTP service.
Since only HTTP textures are using this, they are still starved by other
services like inventory and mesh dowloads. Also, it will be needed to
move the maximum number of connections per service the to the PerService
class, and dynamically tune them: reducing the number of connections is
the first thing to do when using too much bandwidth.

I also added a graph for HTTP texture bandwidth to the stats floater.
For some reason the average bandwidth (over 1 second) look almost like
scattered noise... weird for something that is averaged...
This commit is contained in:
Aleric Inglewood
2013-04-24 22:04:21 +02:00
parent dc5e94812c
commit 45e6b7975f
20 changed files with 395 additions and 68 deletions
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6
indra/llmessage/aicurlprivate.h
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@@ -396,6 +396,9 @@ class BufferedCurlEasyRequest : public CurlEasyRequest {
// Post-initialization, set the parent to pass the events to.
void send_buffer_events_to(AIBufferedCurlEasyRequestEvents* target) { mBufferEventsTarget = target; }
// Called whenever new body data was (might be) received. Keeps track of the used HTTP bandwidth.
void update_body_bandwidth(void);
protected:
// Events from this class.
/*virtual*/ void received_HTTP_header(void);
@@ -411,13 +414,14 @@ class BufferedCurlEasyRequest : public CurlEasyRequest {
U32 mStatus; // HTTP status, decoded from the first header line.
std::string mReason; // The "reason" from the same header line.
U32 mRequestTransferedBytes;
U32 mResponseTransferedBytes;
size_t mTotalRawBytes; // Raw body data (still, possibly, compressed) received from the server so far.
AIBufferedCurlEasyRequestEvents* mBufferEventsTarget;
public:
static LLChannelDescriptors const sChannels; // Channel object for mInput (channel out()) and mOutput (channel in()).
static LLMutex sResponderCallbackMutex; // Locked while calling back any overridden ResponderBase::finished and/or accessing sShuttingDown.
static bool sShuttingDown; // If true, no additional calls to ResponderBase::finished will be made anymore.
static AIAverage sHTTPBandwidth; // HTTP bandwidth usage of all services combined.
private:
// This class may only be created by constructing a ThreadSafeBufferedCurlEasyRequest.