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testHT.c
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testHT.c
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/*
*
* This file is part of project SmartNIC
*
* Copyright (C) 2015 Yigong Wang <yigwang@cs.stonybrook.edu>
*
*
* StupidNIC is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* StupidNIC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with StupidNIC. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <unistd.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <cuckoohash.h>
#define TABLE_SIZE (1 << CKHTABLE_IDX_BITS)
#define TEST_TIMES 10000
uint64_t get_entry(void *table, uint64_t idx)
{
uint64_t *table_ptr = (uint64_t *)table;
return table_ptr[idx];
}
uint64_t set_entry(void *table, uint64_t idx, uint64_t entry)
{
uint64_t *table_ptr = (uint64_t *)table;
table_ptr[idx] = entry;
return table_ptr[idx];
}
void dump_bin(uint64_t idx)
{
int i;
for (i = 63; i >=0; i--) printf("%d ", (int)((idx >> i) & 1));
printf("\n");
return;
}
void dump_ety(uint64_t entry)
{
printf("%llu ", (long long unsigned int)(entry >> (CKHTABLE_KEY_BITS)));
printf("%llx ", (long long unsigned int)((entry & ((1UL << CKHTABLE_KEY_BITS) - 1))));
}
float tableBenchmark(uint64_t * collision_times)
{
int i, j;
int upper, lower;
uint64_t table_a[TABLE_SIZE] = {0};
uint64_t table_b[TABLE_SIZE] = {0};
uint64_t table_c[TABLE_SIZE] = {0};
uint64_t table_d[TABLE_SIZE] = {0};
int times;
ckhtable_interfaces_t ckhti;
ckhti.table_a = table_a;
ckhti.table_b = table_b;
ckhti.table_c = table_c;
ckhti.table_d = table_d;
ckhti.idxhash_a = ckhtable_idxhash_a;
ckhti.idxhash_b = ckhtable_idxhash_b;
ckhti.idxhash_c = ckhtable_idxhash_c;
ckhti.idxhash_d = ckhtable_idxhash_d;
ckhti.getentry = get_entry;
ckhti.setentry = set_entry;
times = TEST_TIMES;
srand(time(NULL));
while (times--) {
memset(table_a, 0, sizeof(uint64_t) * TABLE_SIZE);
memset(table_b, 0, sizeof(uint64_t) * TABLE_SIZE);
memset(table_c, 0, sizeof(uint64_t) * TABLE_SIZE);
memset(table_d, 0, sizeof(uint64_t) * TABLE_SIZE);
for (i = 1; i < 1 + TABLE_SIZE * 4; i++) {
if (ckhtable_set(&ckhti, rand(), rand()) != 0) {
lower = i * 100 / (TABLE_SIZE * 4);
upper = (i+1) * 100 / (TABLE_SIZE * 4);
for (j = lower; j < upper; j++) {
collision_times[j] += 1;
}
}
}
}
//printf("Size: %d, Coverage: %d %%\n", TABLE_SIZE * 2, coverage_percent);
//printf("Collision rate: %f\n", 1.0*fail/((i - 1) * TEST_TIMES));
// printf("--Table A--\t\t--Table B--\t\t--Table C--\t\t--Table D--\n");
// for (i = 0; i < TABLE_SIZE; i ++) {
// dump_ety(table_a[i]);
// printf("\t\t\t");
// dump_ety(table_b[i]);
// printf("\t\t\t");
// dump_ety(table_c[i]);
// printf("\t\t\t");
// dump_ety(table_d[i]);
// printf("\n");
// }
return 0;
}
int main(int argc, char *argv[], char *envp[])
{
char op;
uint64_t key;
uint64_t val;
unsigned int i;
uint64_t table_a[TABLE_SIZE] = {0};
uint64_t table_b[TABLE_SIZE] = {0};
uint64_t table_c[TABLE_SIZE] = {0};
uint64_t table_d[TABLE_SIZE] = {0};
ckhtable_interfaces_t ckhti;
ckhti.table_a = table_a;
ckhti.table_b = table_b;
ckhti.table_c = table_c;
ckhti.table_d = table_d;
ckhti.idxhash_a = ckhtable_idxhash_a;
ckhti.idxhash_b = ckhtable_idxhash_b;
ckhti.idxhash_c = ckhtable_idxhash_c;
ckhti.idxhash_d = ckhtable_idxhash_d;
ckhti.getentry = get_entry;
ckhti.setentry = set_entry;
// uint64_t collision_times[101] = {0};
// tableBenchmark(collision_times);
// for (i=1; i<100; i++) {
// printf("%d %f\n", i, 1.0*collision_times[i]/TEST_TIMES);
// }
// return 0;
printf("Input mode (w, r, d, q): ");
while (1) {
switch ((op = getchar())) {
case 'w':
printf("Input [key, value]: ");
scanf("%p, %d", (void **)&key, (int *)&val);
if (ckhtable_set(&ckhti, key, val) != 0)
printf("Write failed!\n");
break;
case 'r':
printf("Input [key]: ");
scanf("%p", (void **)&key);
printf("%d\n", (int)ckhtable_get(&ckhti, key));
break;
case 'd':
printf("\t--Table A--\t\t\t--Table B--\t\t\t--Table C--\t\t\t--Table D--\n");
for (i = 0; i < TABLE_SIZE; i ++) {
printf("0x%x:\t", i);
dump_ety(table_a[i]);
printf("\t\t\t\t");
dump_ety(table_b[i]);
printf("\t\t\t\t");
dump_ety(table_c[i]);
printf("\t\t\t\t");
dump_ety(table_d[i]);
printf("\n");
}
break;
case 'q':
return 0;
break;
default:
printf("Input mode (w, r, d, q): ");
break;
}
}
printf("%d\n", (int)ckhtable_get(&ckhti, 0xfbbff));
return 0;
}