homework-jianmu/src/query/tests/histogramTest.cpp

122 lines
3.1 KiB
C++

#include <gtest/gtest.h>
#include <sys/time.h>
#include <cassert>
#include <iostream>
#include "taos.h"
#include "tsdb.h"
#include "tstoken.h"
#include "tutil.h"
#include "qhistogram.h"
/* test validate the names for table/database */
TEST(testCase, histogram_binary_search) {
SHistogramInfo* pHisto = tHistogramCreate(MAX_HISTOGRAM_BIN);
pHisto->numOfEntries = 10;
for (int32_t i = 0; i < 10; ++i) {
pHisto->elems[i].num = 1;
pHisto->elems[i].val = i;
}
int32_t idx = vnodeHistobinarySearch(pHisto->elems, pHisto->numOfEntries, 1);
assert(idx == 1);
idx = vnodeHistobinarySearch(pHisto->elems, pHisto->numOfEntries, 9);
assert(idx == 9);
idx = vnodeHistobinarySearch(pHisto->elems, pHisto->numOfEntries, 20);
assert(idx == 10);
idx = vnodeHistobinarySearch(pHisto->elems, pHisto->numOfEntries, -1);
assert(idx == 0);
idx = vnodeHistobinarySearch(pHisto->elems, pHisto->numOfEntries, 3.9);
assert(idx == 4);
free(pHisto);
}
TEST(testCase, histogram_add) {
SHistogramInfo* pHisto = NULL;
/**
* use arrayList, elapsed time is:
* before:
* 10,000,000 45sec, bin:1000 (-O0) / 17sec. bin:1000, (-O3)
*
* after:
*
*/
struct timeval systemTime;
gettimeofday(&systemTime, NULL);
int64_t st =
(int64_t)systemTime.tv_sec * 1000L + (uint64_t)systemTime.tv_usec / 1000;
for (int32_t i = 0; i < 10000; ++i) {
tHistogramAdd(&pHisto, i);
// tHistogramPrint(pHisto);
}
//
gettimeofday(&systemTime, NULL);
int64_t et =
(int64_t)systemTime.tv_sec * 1000L + (uint64_t)systemTime.tv_usec / 1000;
printf("total elapsed time: %ld\n", et - st);
printf("elements: %d, slot:%d \n", pHisto->numOfElems, pHisto->numOfEntries);
tHistogramPrint(pHisto);
printf("%ld\n", tHistogramSum(pHisto, 1.5));
printf("%ld\n", tHistogramSum(pHisto, 2));
printf("%ld\n", tHistogramSum(pHisto, 3));
printf("%ld\n", tHistogramSum(pHisto, 4));
printf("%ld\n", tHistogramSum(pHisto, 5));
printf("%ld\n", tHistogramSum(pHisto, 6));
for (int32_t i = 399; i < 400; ++i) {
printf("val:%d, %ld\n", i, tHistogramSum(pHisto, i));
}
double ratio[] = {0 / 100, 20.0 / 100, 88.0 / 100, 100 / 100};
double* res = tHistogramUniform(pHisto, ratio, 4);
for (int32_t i = 0; i < 4; ++i) {
printf("%f\n", res[i]);
}
SHistogramInfo* pHisto1 = NULL;
for (int32_t i = (90000 - 1); i >= 80000; --i) {
tHistogramAdd(&pHisto1, i);
}
tHistogramPrint(pHisto1);
SHistogramInfo* pRes = tHistogramMerge(pHisto1, pHisto, MAX_HISTOGRAM_BIN);
assert(pRes->numOfElems == pHisto->numOfElems + pHisto1->numOfElems);
tHistogramPrint(pRes);
tHistogramDestroy(&pHisto);
tHistogramDestroy(&pHisto1);
tHistogramDestroy(&pRes);
free(res);
}
TEST(testCase, heapsort) {
// int32_t num = 20;
//
// SHeapEntry* pEntry = tHeapCreate(num);
//
// for(int32_t i=0; i<num; ++i) {
// pEntry[i].val = num - 1 - i;
// }
//
// tHeapSort(pEntry, num);
//
// for(int32_t i=0; i<num; ++i) {
// printf("%lf, ", pEntry[i].val);
// }
//
// printf("\n");
//
// free(pEntry);
}