diff options
Diffstat (limited to 'indra')
| -rwxr-xr-x | indra/newview/lltexturefetch.cpp | 54 | ||||
| -rw-r--r-- | indra/newview/lltexturefetch.h | 7 |
2 files changed, 56 insertions, 5 deletions
diff --git a/indra/newview/lltexturefetch.cpp b/indra/newview/lltexturefetch.cpp index eac6abc1ca..e96bcd2ad0 100755 --- a/indra/newview/lltexturefetch.cpp +++ b/indra/newview/lltexturefetch.cpp @@ -1162,8 +1162,7 @@ bool LLTextureFetchWorker::doWork(S32 param) //1, not openning too many file descriptors at the same time; //2, control the traffic of http so udp gets bandwidth. // - static const S32 MAX_NUM_OF_HTTP_REQUESTS_IN_QUEUE = 24 ; - if(mFetcher->getNumHTTPRequests() > MAX_NUM_OF_HTTP_REQUESTS_IN_QUEUE) + if(!mFetcher->canIssueHTTPRequest()) { return false ; //wait. } @@ -1275,6 +1274,7 @@ bool LLTextureFetchWorker::doWork(S32 param) // requests instead of returning 503... we already limit the number pending. ++mHTTPFailCount; max_attempts = mHTTPFailCount+1; // Keep retrying + mFetcher->adjustHTTPConcurrency(false); LL_INFOS_ONCE("Texture") << "Texture server busy (503): " << mUrl << LL_ENDL; } else @@ -1282,6 +1282,7 @@ bool LLTextureFetchWorker::doWork(S32 param) const S32 HTTP_MAX_RETRY_COUNT = 3; max_attempts = HTTP_MAX_RETRY_COUNT + 1; ++mHTTPFailCount; + mFetcher->adjustHTTPConcurrency(false); llinfos << "HTTP GET failed for: " << mUrl << " Status: " << mGetStatus << " Reason: '" << mGetReason << "'" << " Attempt:" << mHTTPFailCount+1 << "/" << max_attempts << llendl; @@ -1869,7 +1870,8 @@ LLTextureFetch::LLTextureFetch(LLTextureCache* cache, LLImageDecodeThread* image mQAMode(qa_mode), mFetchDebugger(NULL), mFetchSource(LLTextureFetch::FROM_ALL), - mOriginFetchSource(LLTextureFetch::FROM_ALL) + mOriginFetchSource(LLTextureFetch::FROM_ALL), + mHTTPConcurrency(24) { mCurlPOSTRequestCount = 0; mMaxBandwidth = gSavedSettings.getF32("ThrottleBandwidthKBPS"); @@ -2094,6 +2096,42 @@ S32 LLTextureFetch::getNumRequests() return size ; } +bool LLTextureFetch::canIssueHTTPRequest() +{ + LLMutexLock lock(&mNetworkQueueMutex); + + return (S32)mHTTPTextureQueue.size() < mHTTPConcurrency ; +} + +void LLTextureFetch::adjustHTTPConcurrency(bool success) +{ + static LLTimer timer; + + LLMutexLock lock(&mNetworkQueueMutex); + if(success) + { + if(mHTTPConcurrency < 21 && timer.getElapsedTimeF32() > 15.f) //seconds + { + mHTTPConcurrency += 4; //max is 24 + timer.reset(); + } + } + else + { + if(mHTTPConcurrency > 11 && timer.getElapsedTimeF32() > 2.0f) + { + mHTTPConcurrency -= 8; //min is 4 + timer.reset(); + } + } +} + +S32 LLTextureFetch::getHTTPConcurrency() +{ + LLMutexLock lock(&mNetworkQueueMutex); + return mHTTPConcurrency; +} + S32 LLTextureFetch::getNumHTTPRequests() { mNetworkQueueMutex.lock() ; @@ -2311,6 +2349,9 @@ S32 LLTextureFetch::update(F32 max_time_ms) { mFetchDebugger->tryToStopDebug(); //check if need to stop debugger. } + + adjustHTTPConcurrency(true); + return res; } @@ -3608,7 +3649,8 @@ S32 LLTextureFetchDebugger::fillCurlQueue() return 0; } - if (mNbCurlRequests == 24) + S32 max_concurrency = mFetcher->getHTTPConcurrency(); + if (mNbCurlRequests == max_concurrency) return mNbCurlRequests; S32 size = mFetchingHistory.size(); @@ -3630,7 +3672,7 @@ S32 LLTextureFetchDebugger::fillCurlQueue() mFetchingHistory[i].mCurlState = FetchEntry::CURL_IN_PROGRESS; mNbCurlRequests++; // Hack - if (mNbCurlRequests == 24) + if (mNbCurlRequests == max_concurrency) break; } else @@ -4007,6 +4049,8 @@ void LLTextureFetchDebugger::callbackHTTP(S32 id, const LLChannelDescriptors& ch mFetchingHistory[id].mCurlState = FetchEntry::CURL_DONE; mNbCurlCompleted++; } + + mFetcher->adjustHTTPConcurrency(false); } } diff --git a/indra/newview/lltexturefetch.h b/indra/newview/lltexturefetch.h index d7677295c0..3ac08ecbc2 100644 --- a/indra/newview/lltexturefetch.h +++ b/indra/newview/lltexturefetch.h @@ -109,6 +109,10 @@ public: inline void incrCurlPOSTCount() { mCurlPOSTRequestCount++; } inline void decrCurlPOSTCount() { mCurlPOSTRequestCount--; } + bool canIssueHTTPRequest(); + void adjustHTTPConcurrency(bool success); + S32 getHTTPConcurrency(); + protected: void addToNetworkQueue(LLTextureFetchWorker* worker); void removeFromNetworkQueue(LLTextureFetchWorker* worker, bool cancel); @@ -209,6 +213,9 @@ private: // use the LLCurl module's request counter as it isn't thread compatible. // *NOTE: Don't mix Atomic and static, apr_initialize must be called first. LLAtomic32<S32> mCurlPOSTRequestCount; + + //control http concurrency for texture fetching + S32 mHTTPConcurrency; //which is adaptive to the network situation at an instant public: // A probabilistically-correct indicator that the current |