refactor: opt perf in tsdbread.
This commit is contained in:
Haojun Liao
parent
a0520d2a06
commit
22c32f76fc
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@ -192,6 +192,7 @@ static SVersionRange getQueryVerRange(SVnode* pVnode, SQueryTableDataCond* pCond
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static int64_t getCurrentKeyInLastBlock(SLastBlockReader* pLastBlockReader);
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static bool hasDataInLastBlock(SLastBlockReader* pLastBlockReader);
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static int32_t doBuildDataBlock(STsdbReader* pReader);
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static TSDBKEY getCurrentKeyInBuf(STableBlockScanInfo* pScanInfo, STsdbReader* pReader);
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static int32_t setColumnIdSlotList(STsdbReader* pReader, SSDataBlock* pBlock) {
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SBlockLoadSuppInfo* pSupInfo = &pReader->suppInfo;
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@ -682,12 +683,154 @@ static SFileDataBlockInfo* getCurrentBlockInfo(SDataBlockIter* pBlockIter) {
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static SDataBlk* getCurrentBlock(SDataBlockIter* pBlockIter) { return &pBlockIter->block; }
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int32_t binarySearchForTs(char* pValue, int num, TSKEY key, int order) {
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int32_t midPos = -1;
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int32_t numOfRows;
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ASSERT(order == TSDB_ORDER_ASC || order == TSDB_ORDER_DESC);
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TSKEY* keyList = (TSKEY*)pValue;
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int32_t firstPos = 0;
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int32_t lastPos = num - 1;
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if (order == TSDB_ORDER_DESC) {
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// find the first position which is smaller than the key
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while (1) {
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if (key >= keyList[firstPos]) return firstPos;
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if (key == keyList[lastPos]) return lastPos;
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if (key < keyList[lastPos]) {
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lastPos += 1;
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if (lastPos >= num) {
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return -1;
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} else {
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return lastPos;
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}
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}
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numOfRows = lastPos - firstPos + 1;
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midPos = (numOfRows >> 1) + firstPos;
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if (key < keyList[midPos]) {
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firstPos = midPos + 1;
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} else if (key > keyList[midPos]) {
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lastPos = midPos - 1;
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} else {
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break;
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}
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}
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} else {
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// find the first position which is bigger than the key
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while (1) {
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if (key <= keyList[firstPos]) return firstPos;
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if (key == keyList[lastPos]) return lastPos;
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if (key > keyList[lastPos]) {
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lastPos = lastPos + 1;
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if (lastPos >= num)
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return -1;
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else
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return lastPos;
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}
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numOfRows = lastPos - firstPos + 1;
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midPos = (numOfRows >> 1u) + firstPos;
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if (key < keyList[midPos]) {
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lastPos = midPos - 1;
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} else if (key > keyList[midPos]) {
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firstPos = midPos + 1;
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} else {
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break;
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}
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}
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}
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return midPos;
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}
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static int doBinarySearchKey(TSKEY* keyList, int num, int pos, TSKEY key, int order) {
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// start end position
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int s, e;
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s = pos;
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// check
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assert(pos >=0 && pos < num);
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assert(num > 0);
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if (order == TSDB_ORDER_ASC) {
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// find the first position which is smaller than the key
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e = num - 1;
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if (key < keyList[pos])
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return -1;
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while (1) {
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// check can return
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if (key >= keyList[e])
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return e;
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if (key <= keyList[s])
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return s;
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if (e - s <= 1)
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return s;
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// change start or end position
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int mid = s + (e - s + 1)/2;
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if (keyList[mid] > key)
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e = mid;
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else if(keyList[mid] < key)
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s = mid;
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else
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return mid;
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}
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} else { // DESC
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// find the first position which is bigger than the key
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e = 0;
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if (key > keyList[pos])
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return -1;
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while (1) {
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// check can return
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if (key <= keyList[e])
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return e;
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if (key >= keyList[s])
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return s;
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if (s - e <= 1)
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return s;
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// change start or end position
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int mid = s - (s - e + 1)/2;
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if (keyList[mid] < key)
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e = mid;
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else if(keyList[mid] > key)
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s = mid;
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else
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return mid;
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}
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}
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}
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int32_t getEndPosInDataBlock(STsdbReader* pReader, SBlockData* pBlockData, SDataBlk* pBlock, int32_t pos) {
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// NOTE: reverse the order to find the end position in data block
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int32_t endPos = -1;
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bool asc = ASCENDING_TRAVERSE(pReader->order);
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if (asc && pReader->window.ekey >= pBlock->maxKey.ts) {
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endPos = pBlock->nRow - 1;
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} else if (!asc && pReader->window.skey <= pBlock->minKey.ts) {
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endPos = 0;
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} else {
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endPos = doBinarySearchKey(pBlockData->aTSKEY, pBlock->nRow, pos, pReader->window.ekey, pReader->order);
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assert(endPos != -1);
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}
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return endPos;
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}
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static int32_t copyBlockDataToSDataBlock(STsdbReader* pReader, STableBlockScanInfo* pBlockScanInfo) {
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SReaderStatus* pStatus = &pReader->status;
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SDataBlockIter* pBlockIter = &pStatus->blockIter;
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SBlockData* pBlockData = &pStatus->fileBlockData;
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SFileDataBlockInfo* pFBlock = getCurrentBlockInfo(pBlockIter);
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SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(pBlockIter);
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SDataBlk* pBlock = getCurrentBlock(pBlockIter);
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SSDataBlock* pResBlock = pReader->pResBlock;
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int32_t numOfOutputCols = blockDataGetNumOfCols(pResBlock);
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@ -701,20 +844,27 @@ static int32_t copyBlockDataToSDataBlock(STsdbReader* pReader, STableBlockScanIn
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int32_t step = asc ? 1 : -1;
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int32_t rowIndex = 0;
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int32_t remain = asc ? (pBlockData->nRow - pDumpInfo->rowIndex) : (pDumpInfo->rowIndex + 1);
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int32_t endIndex = 0;
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if (remain <= pReader->capacity) {
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endIndex = pBlockData->nRow;
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if (asc && pReader->window.skey <= pBlock->minKey.ts) {
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pDumpInfo->rowIndex = 0;
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} else if (!asc && pReader->window.ekey >= pBlock->maxKey.ts) {
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pDumpInfo->rowIndex = pBlock->nRow - 1;
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} else {
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endIndex = pDumpInfo->rowIndex + step * pReader->capacity;
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int32_t pos = asc? pBlock->nRow-1:0;
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int32_t order = (pReader->order == TSDB_ORDER_ASC)? TSDB_ORDER_DESC:TSDB_ORDER_ASC;
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pDumpInfo->rowIndex = doBinarySearchKey(pBlockData->aTSKEY, pBlock->nRow, pos, pReader->window.skey, order);
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}
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// time window check
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int32_t endIndex = getEndPosInDataBlock(pReader, pBlockData, pBlock, pDumpInfo->rowIndex) + step;
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int32_t remain = asc ? (endIndex - pDumpInfo->rowIndex) : (pDumpInfo->rowIndex - endIndex);
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if (remain > pReader->capacity) { // output buffer check
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remain = pReader->capacity;
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}
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int32_t i = 0;
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int32_t i = 0;
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SColumnInfoData* pColData = taosArrayGet(pResBlock->pDataBlock, i);
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if (pColData->info.colId == PRIMARYKEY_TIMESTAMP_COL_ID) {
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for (int32_t j = pDumpInfo->rowIndex; j < endIndex && j >= 0; j += step) {
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for (int32_t j = pDumpInfo->rowIndex; rowIndex < remain; j += step) {
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colDataAppend(pColData, rowIndex++, (const char*)&pBlockData->aTSKEY[j], false);
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}
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i += 1;
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@ -730,7 +880,7 @@ static int32_t copyBlockDataToSDataBlock(STsdbReader* pReader, STableBlockScanIn
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if (pData->cid < pColData->info.colId) {
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colIndex += 1;
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} else if (pData->cid == pColData->info.colId) {
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for (int32_t j = pDumpInfo->rowIndex; j < endIndex && j >= 0; j += step) {
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for (int32_t j = pDumpInfo->rowIndex; rowIndex < remain; j += step) {
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tColDataGetValue(pData, j, &cv);
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doCopyColVal(pColData, rowIndex++, i, &cv, pSupInfo);
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}
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@ -752,7 +902,10 @@ static int32_t copyBlockDataToSDataBlock(STsdbReader* pReader, STableBlockScanIn
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pResBlock->info.rows = remain;
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pDumpInfo->rowIndex += step * remain;
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setBlockAllDumped(pDumpInfo, pBlock->maxKey.ts, pReader->order);
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if ((pDumpInfo->rowIndex >= pBlock->nRow && asc) ||(pDumpInfo->rowIndex < 0 && !asc)) {
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int64_t k = asc? pBlock->maxKey.ts:pBlock->minKey.ts;
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setBlockAllDumped(pDumpInfo, k, pReader->order);
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}
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double elapsedTime = (taosGetTimestampUs() - st) / 1000.0;
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pReader->cost.blockLoadTime += elapsedTime;
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@ -760,7 +913,7 @@ static int32_t copyBlockDataToSDataBlock(STsdbReader* pReader, STableBlockScanIn
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int32_t unDumpedRows = asc ? pBlock->nRow - pDumpInfo->rowIndex : pDumpInfo->rowIndex + 1;
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tsdbDebug("%p copy file block to sdatablock, global index:%d, table index:%d, brange:%" PRId64 "-%" PRId64
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", rows:%d, remain:%d, minVer:%" PRId64 ", maxVer:%" PRId64 ", elapsed time:%.2f ms, %s",
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pReader, pBlockIter->index, pFBlock->tbBlockIdx, pBlock->minKey.ts, pBlock->maxKey.ts, remain, unDumpedRows,
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pReader, pBlockIter->index, pBlockInfo->tbBlockIdx, pBlock->minKey.ts, pBlock->maxKey.ts, remain, unDumpedRows,
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pBlock->minVer, pBlock->maxVer, elapsedTime, pReader->idStr);
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return TSDB_CODE_SUCCESS;
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@ -1148,26 +1301,31 @@ static bool overlapWithDelSkyline(STableBlockScanInfo* pBlockScanInfo, const SDa
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}
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}
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// 1. the version of all rows should be less than the endVersion
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// 2. current block should not overlap with next neighbor block
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// 3. current timestamp should not be overlap with each other
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// 4. output buffer should be large enough to hold all rows in current block
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// 5. delete info should not overlap with current block data
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static bool fileBlockShouldLoad(STsdbReader* pReader, SFileDataBlockInfo* pFBlock, SDataBlk* pBlock,
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STableBlockScanInfo* pScanInfo, TSDBKEY key, SLastBlockReader* pLastBlockReader) {
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typedef struct {
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bool overlapWithNeighborBlock;
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bool hasDupTs;
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bool overlapWithDelInfo;
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bool overlapWithLastBlock;
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bool overlapWithKeyInBuf;
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bool partiallyRequired;
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bool moreThanCapcity;
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} SDataBlockToLoadInfo;
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static void getBlockToLoadInfo(SDataBlockToLoadInfo* pInfo, SFileDataBlockInfo* pBlockInfo, SDataBlk* pBlock,
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STableBlockScanInfo* pScanInfo, TSDBKEY keyInBuf, SLastBlockReader* pLastBlockReader,
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STsdbReader* pReader) {
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int32_t neighborIndex = 0;
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SDataBlk* pNeighbor = getNeighborBlockOfSameTable(pFBlock, pScanInfo, &neighborIndex, pReader->order);
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SDataBlk* pNeighbor = getNeighborBlockOfSameTable(pBlockInfo, pScanInfo, &neighborIndex, pReader->order);
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// overlap with neighbor
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bool overlapWithNeighbor = false;
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if (pNeighbor) {
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overlapWithNeighbor = overlapWithNeighborBlock(pBlock, pNeighbor, pReader->order);
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pInfo->overlapWithNeighborBlock = overlapWithNeighborBlock(pBlock, pNeighbor, pReader->order);
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taosMemoryFree(pNeighbor);
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}
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// has duplicated ts of different version in this block
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bool hasDup = (pBlock->nSubBlock == 1) ? pBlock->hasDup : true;
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bool overlapWithDel = overlapWithDelSkyline(pScanInfo, pBlock, pReader->order);
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pInfo->hasDupTs = (pBlock->nSubBlock == 1) ? pBlock->hasDup : true;
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pInfo->overlapWithDelInfo = overlapWithDelSkyline(pScanInfo, pBlock, pReader->order);
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// todo here we need to each key in the last files to identify if it is really overlapped with last block
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// todo
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@ -1179,25 +1337,48 @@ static bool fileBlockShouldLoad(STsdbReader* pReader, SFileDataBlockInfo* pFBloc
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}
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#endif
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bool moreThanOutputCapacity = pBlock->nRow > pReader->capacity;
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bool partiallyRequired = dataBlockPartiallyRequired(&pReader->window, &pReader->verRange, pBlock);
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bool overlapWithKey = keyOverlapFileBlock(key, pBlock, &pReader->verRange);
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pInfo->moreThanCapcity = pBlock->nRow > pReader->capacity;
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pInfo->partiallyRequired = dataBlockPartiallyRequired(&pReader->window, &pReader->verRange, pBlock);
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pInfo->overlapWithKeyInBuf = keyOverlapFileBlock(keyInBuf, pBlock, &pReader->verRange);
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}
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bool loadDataBlock = (overlapWithNeighbor || hasDup || partiallyRequired || overlapWithKey ||
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moreThanOutputCapacity || overlapWithDel || overlapWithlastBlock);
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// 1. the version of all rows should be less than the endVersion
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// 2. current block should not overlap with next neighbor block
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// 3. current timestamp should not be overlap with each other
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// 4. output buffer should be large enough to hold all rows in current block
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// 5. delete info should not overlap with current block data
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// 6. current block should not contain the duplicated ts
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static bool fileBlockShouldLoad(STsdbReader* pReader, SFileDataBlockInfo* pBlockInfo, SDataBlk* pBlock,
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STableBlockScanInfo* pScanInfo, TSDBKEY keyInBuf, SLastBlockReader* pLastBlockReader) {
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SDataBlockToLoadInfo info = {0};
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getBlockToLoadInfo(&info, pBlockInfo, pBlock, pScanInfo, keyInBuf, pLastBlockReader, pReader);
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bool loadDataBlock =
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(info.overlapWithNeighborBlock || info.hasDupTs || info.partiallyRequired || info.overlapWithKeyInBuf ||
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info.moreThanCapcity || info.overlapWithDelInfo || info.overlapWithLastBlock);
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// log the reason why load the datablock for profile
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if (loadDataBlock) {
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tsdbDebug("%p uid:%" PRIu64
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" need to load the datablock, overlapwithneighborblock:%d, hasDup:%d, partiallyRequired:%d, "
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"overlapWithKey:%d, greaterThanBuf:%d, overlapWithDel:%d, overlapWithlastBlock:%d, %s",
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pReader, pFBlock->uid, overlapWithNeighbor, hasDup, partiallyRequired, overlapWithKey,
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moreThanOutputCapacity, overlapWithDel, overlapWithlastBlock, pReader->idStr);
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pReader, pBlockInfo->uid, info.overlapWithNeighborBlock, info.hasDupTs, info.partiallyRequired,
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info.overlapWithKeyInBuf, info.moreThanCapcity, info.overlapWithDelInfo, info.overlapWithLastBlock,
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pReader->idStr);
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}
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return loadDataBlock;
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}
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static bool isCleanFileDataBlock(STsdbReader* pReader, SFileDataBlockInfo* pBlockInfo, SDataBlk* pBlock,
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STableBlockScanInfo* pScanInfo, TSDBKEY keyInBuf, SLastBlockReader* pLastBlockReader) {
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SDataBlockToLoadInfo info = {0};
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getBlockToLoadInfo(&info, pBlockInfo, pBlock, pScanInfo, keyInBuf, pLastBlockReader, pReader);
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bool isCleanFileBlock = !(info.overlapWithNeighborBlock || info.hasDupTs || info.overlapWithKeyInBuf ||
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info.overlapWithDelInfo || info.overlapWithLastBlock);
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return isCleanFileBlock;
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}
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static int32_t buildDataBlockFromBuf(STsdbReader* pReader, STableBlockScanInfo* pBlockScanInfo, int64_t endKey) {
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if (!(pBlockScanInfo->iiter.hasVal || pBlockScanInfo->iter.hasVal)) {
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return TSDB_CODE_SUCCESS;
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@ -2020,20 +2201,29 @@ static int32_t buildComposedDataBlock(STsdbReader* pReader) {
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SSDataBlock* pResBlock = pReader->pResBlock;
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SFileDataBlockInfo* pBlockInfo = getCurrentBlockInfo(&pReader->status.blockIter);
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SLastBlockReader* pLastBlockReader = pReader->status.fileIter.pLastBlockReader;
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int64_t st = taosGetTimestampUs();
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STableBlockScanInfo* pBlockScanInfo = NULL;
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if (pBlockInfo != NULL) {
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pBlockScanInfo = taosHashGet(pReader->status.pTableMap, &pBlockInfo->uid, sizeof(pBlockInfo->uid));
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} else {
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SDataBlk* pBlock = getCurrentBlock(&pReader->status.blockIter);
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TSDBKEY keyInBuf = getCurrentKeyInBuf(pBlockScanInfo, pReader);
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// it is a clean block, load it directly
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if (isCleanFileDataBlock(pReader, pBlockInfo, pBlock, pBlockScanInfo, keyInBuf, pLastBlockReader)) {
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copyBlockDataToSDataBlock(pReader, pBlockScanInfo);
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goto _end;
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}
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} else { // file blocks not exist
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pBlockScanInfo = pReader->status.pTableIter;
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}
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SLastBlockReader* pLastBlockReader = pReader->status.fileIter.pLastBlockReader;
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SFileBlockDumpInfo* pDumpInfo = &pReader->status.fBlockDumpInfo;
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SBlockData* pBlockData = &pReader->status.fileBlockData;
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int32_t step = ASCENDING_TRAVERSE(pReader->order) ? 1 : -1;
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int64_t st = taosGetTimestampUs();
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while (1) {
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// todo check the validate of row in file block
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@ -2076,6 +2266,7 @@ static int32_t buildComposedDataBlock(STsdbReader* pReader) {
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}
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}
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_end:
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pResBlock->info.uid = pBlockScanInfo->uid;
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blockDataUpdateTsWindow(pResBlock, 0);
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@ -2179,7 +2370,7 @@ _err:
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return code;
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}
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static TSDBKEY getCurrentKeyInBuf(STableBlockScanInfo* pScanInfo, STsdbReader* pReader) {
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TSDBKEY getCurrentKeyInBuf(STableBlockScanInfo* pScanInfo, STsdbReader* pReader) {
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TSDBKEY key = {.ts = TSKEY_INITIAL_VAL};
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TSDBROW* pRow = getValidMemRow(&pScanInfo->iter, pScanInfo->delSkyline, pReader);
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if (pRow != NULL) {
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@ -2375,12 +2566,12 @@ static int32_t doBuildDataBlock(STsdbReader* pReader) {
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}
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initLastBlockReader(pLastBlockReader, pScanInfo, pReader);
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TSDBKEY key = getCurrentKeyInBuf(pScanInfo, pReader);
|
||||
TSDBKEY keyInBuf = getCurrentKeyInBuf(pScanInfo, pReader);
|
||||
|
||||
if (pBlockInfo == NULL) { // build data block from last data file
|
||||
ASSERT(pBlockIter->numOfBlocks == 0);
|
||||
code = buildComposedDataBlock(pReader);
|
||||
} else if (fileBlockShouldLoad(pReader, pBlockInfo, pBlock, pScanInfo, key, pLastBlockReader)) {
|
||||
} else if (fileBlockShouldLoad(pReader, pBlockInfo, pBlock, pScanInfo, keyInBuf, pLastBlockReader)) {
|
||||
tBlockDataReset(&pStatus->fileBlockData);
|
||||
code = tBlockDataInit(&pStatus->fileBlockData, pReader->suid, pScanInfo->uid, pReader->pSchema);
|
||||
if (code != TSDB_CODE_SUCCESS) {
|
||||
|
|
@ -2394,7 +2585,7 @@ static int32_t doBuildDataBlock(STsdbReader* pReader) {
|
|||
|
||||
// build composed data block
|
||||
code = buildComposedDataBlock(pReader);
|
||||
} else if (bufferDataInFileBlockGap(pReader->order, key, pBlock)) {
|
||||
} else if (bufferDataInFileBlockGap(pReader->order, keyInBuf, pBlock)) {
|
||||
// data in memory that are earlier than current file block
|
||||
// todo rows in buffer should be less than the file block in asc, greater than file block in desc
|
||||
int64_t endKey = (ASCENDING_TRAVERSE(pReader->order)) ? pBlock->minKey.ts : pBlock->maxKey.ts;
|
||||
|
|
|
|||
Loading…
Reference in New Issue