database/mariadb-columnstore-engine
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This patch introduces support for scanning/filtering vectorized execution for numeric-based

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data types TEXT, CHAR, VARCHAR, FLOAT and DOUBLE are not yet supported by vectorized path
This patch introduces an example for Google benchmarking suite to measure a perf diff
b/w legacy scan/filtering code and the templated version
This commit is contained in:
Roman Nozdrin
2021-09-08 17:59:20 +00:00
committed by Roman Nozdrin
parent cac23b0afc
commit af36f9940f
22 changed files with 2720 additions and 143 deletions
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6
primitives/primproc/columncommand.cpp
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@ -168,12 +168,11 @@ void ColumnCommand::_loadData()
_mask = mask;
// primMsg->RidFlags = 0xffff; // disables selective block loading
//cout <<__FILE__ << "::issuePrimitive() o: " << getOID() << " l:" << primMsg->LBID << " ll: " << oidLastLbid << endl;
//primMsg->RidFlags = 0xffff; // disables selective block loading
//cerr << "::ColumnCommand::_loadData OID " << getOID() << " l:" << primMsg->LBID << " ll: " << oidLastLbid << " primMsg->RidFlags " << primMsg->RidFlags << endl;
for (i = 0; i < W; ++i, _mask <<= shift)
{
if ((!lastBlockReached && _isScan) || (!_isScan && primMsg->RidFlags & _mask))
{
lbids[blocksToLoad] = primMsg->LBID + i;
@ -397,7 +396,6 @@ void ColumnCommand::_process_OT_BOTH()
{
using T = typename datatypes::WidthToSIntegralType<W>::type;
bpp->ridCount = outMsg->NVALS;
bpp->ridCount = outMsg->NVALS;
bpp->ridMap = outMsg->RidFlags;
uint8_t* outPtr = reinterpret_cast<uint8_t*>(&outMsg[1]);
auto* ridPos = primitives::getRIDArrayPosition(outPtr, 0);

4
primitives/primproc/dictstep.cpp
View File

@ -154,7 +154,7 @@ void DictStep::issuePrimitive(bool isFilter)
if (!(primMsg->LBID & 0x8000000000000000LL))
{
//cout << "DS issuePrimitive lbid: " << (uint64_t)primMsg->LBID << endl;
//std::cerr << "DS issuePrimitive lbid: " << (uint64_t)primMsg->LBID << endl;
primitiveprocessor::loadBlock(primMsg->LBID,
bpp->versionInfo,
bpp->txnID,
@ -577,7 +577,7 @@ void DictStep::_projectToRG(RowGroup& rg, uint32_t col)
for (i = curResultCounter; i < tmpResultCounter; i++)
{
rg.getRow(newRidList[i].pos, &r);
//cout << "serializing " << tmpStrings[i] << endl;
//std::cerr << "serializing " << tmpStrings[i] << endl;
r.setStringField(tmpStrings[i].getConstString(), col);
}
}