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 autodebug

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benchmark.cpp

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// Copyright 2013 The Emscripten Authors. All rights reserved.

// Emscripten is available under two separate licenses, the MIT license and the

// University of Illinois/NCSA Open Source License. Both these licenses can be

// found in the LICENSE file.

#include <stdlib.h>

#include <stdio.h>

#include <time.h>

typedef unsigned int uint32;

int cmp_uint(const void *i1, const void *i2) {

if (*static_cast<const uint32*>(i1) >

*static_cast<const uint32*>(i2))

return 1;

if (*static_cast<const uint32*>(i1) <

*static_cast<const uint32*>(i2))

return -1;

return 0;

}

int main() {

clock_t start = clock();

const size_t TIMES = 10000;

for (size_t i = 0; i < TIMES; i++) {

const size_t num = 100;

uint32 rnd[num] = { \

407, 236, 765, 529, 24, 13, 577, 900, 242, 245, \

782, 972, 514, 100, 596, 470, 680, 65, 370, 788, \

44, 330, 579, 314, 914, 399, 100, 945, 992, 412, \

308, 102, 895, 529, 216, 422, 851, 778, 28, 804, \

325, 975, 961, 623, 922, 667, 141, 755, 416, 575, \

712, 503, 174, 675, 14, 647, 544, 881, 858, 621, \

26, 283, 460, 252, 146, 16, 571, 570, 14, 143, \

674, 985, 477, 386, 932, 490, 611, 127, 702, 619, \

104, 892, 58, 635, 663, 424, 714, 740, 229, 538, \

167, 181, 193, 193, 657, 778, 217, 573, 764, 745};

qsort(rnd, num, sizeof(uint32), cmp_uint);

}

clock_t end = clock();

float diff = (((float)end - (float)start) / CLOCKS_PER_SEC ) * 1000;

printf("cost %fms\n", diff);

}