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wl2077 - ndb scan optimizations

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ndb/test/ndbapi/testScanPerf.cpp:
  Add reset_bounds option
  Impl. eq bound queries
This commit is contained in:
unknown
2004-11-18 22:41:31 +01:00
parent 6a87e0060d
commit f080e78f62
1 changed files with 54 additions and 24 deletions
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78
ndb/test/ndbapi/testScanPerf.cpp
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@ -39,8 +39,9 @@ struct Parameter {
#define P_LOOPS 8
#define P_CREATE 9
#define P_LOAD 10
#define P_RESET 11
#define P_MAX 11
#define P_MAX 12
static
Parameter
@ -55,7 +56,8 @@ g_paramters[] = {
{ "size", 1000000, 1, ~0 },
{ "iterations", 3, 1, ~0 },
{ "create_drop", 1, 0, 1 },
{ "data", 1, 0, 1 }
{ "data", 1, 0, 1 },
{ "q-reset bounds", 0, 1, 0 }
};
static Ndb* g_ndb = 0;
@ -218,21 +220,29 @@ run_scan(){
NDB_TICKS start1, stop;
int sum_time= 0;
int sample_rows = 0;
NDB_TICKS sample_start = NdbTick_CurrentMillisecond();
Uint32 tot = g_paramters[P_ROWS].value;
if(g_paramters[P_BOUND].value == 2 || g_paramters[P_FILT].value == 2)
iter *= g_paramters[P_ROWS].value;
NdbScanOperation * pOp = 0;
NdbIndexScanOperation * pIOp = 0;
NdbConnection * pTrans = 0;
NdbResultSet * rs = 0;
int check = 0;
for(int i = 0; i<iter; i++){
start1 = NdbTick_CurrentMillisecond();
NdbConnection * pTrans = g_ndb->startTransaction();
pTrans = pTrans ? pTrans : g_ndb->startTransaction();
if(!pTrans){
g_err << "Failed to start transaction" << endl;
err(g_ndb->getNdbError());
return -1;
}
NdbScanOperation * pOp;
NdbIndexScanOperation * pIOp;
NdbResultSet * rs;
int par = g_paramters[P_PARRA].value;
int bat = g_paramters[P_BATCH].value;
NdbScanOperation::LockMode lm;
@ -255,9 +265,17 @@ run_scan(){
assert(pOp);
rs = pOp->readTuples(lm, bat, par);
} else {
pOp = pIOp = pTrans->getNdbIndexScanOperation(g_indexname, g_tablename);
bool ord = g_paramters[P_ACCESS].value == 2;
rs = pIOp->readTuples(lm, bat, par, ord);
if(g_paramters[P_RESET].value == 0 || pIOp == 0)
{
pOp= pIOp= pTrans->getNdbIndexScanOperation(g_indexname, g_tablename);
bool ord = g_paramters[P_ACCESS].value == 2;
rs = pIOp->readTuples(lm, bat, par, ord);
}
else
{
pIOp->reset_bounds();
}
switch(g_paramters[P_BOUND].value){
case 0: // All
break;
@ -267,20 +285,22 @@ run_scan(){
case 2: { // 1 row
default:
assert(g_table->getNoOfPrimaryKeys() == 1); // only impl. so far
abort();
#if 0
int tot = g_paramters[P_ROWS].value;
int row = rand() % tot;
#if 0
fix_eq_bound(pIOp, row);
#else
pIOp->setBound((Uint32)0, NdbIndexScanOperation::BoundEQ, &row);
#endif
break;
}
}
if(g_paramters[P_RESET].value == 1)
goto execute;
}
assert(pOp);
assert(rs);
int check = 0;
switch(g_paramters[P_FILT].value){
case 0: // All
check = pOp->interpret_exit_ok();
@ -312,7 +332,7 @@ run_scan(){
for(int i = 0; i<g_table->getNoOfColumns(); i++){
pOp->getValue(i);
}
execute:
int rows = 0;
check = pTrans->execute(NoCommit);
assert(check == 0);
@ -333,19 +353,29 @@ run_scan(){
return -1;
}
assert(check == 1);
g_info << "Found " << rows << " rows" << endl;
pTrans->close();
if(g_paramters[P_RESET].value == 0)
{
pTrans->close();
pTrans = 0;
}
stop = NdbTick_CurrentMillisecond();
int time_passed= (int)(stop - start1);
g_err.println("Time: %d ms = %u rows/sec", time_passed,
(1000*tot)/time_passed);
sample_rows += rows;
sum_time+= time_passed;
if(sample_rows >= tot)
{
int sample_time = (int)(stop - sample_start);
g_info << "Found " << sample_rows << " rows" << endl;
g_err.println("Time: %d ms = %u rows/sec", sample_time,
(1000*sample_rows)/sample_time);
sample_rows = 0;
sample_start = stop;
}
}
sum_time= sum_time / iter;
g_err.println("Avg time: %d ms = %u rows/sec", sum_time,
(1000*tot)/sum_time);
g_err.println("Avg time: %d ms = %u rows/sec", sum_time/iter,
(1000*tot*iter)/sum_time);
return 0;
}