ibphoenix/tomsfastmath
6
0
Fork 1
Code Issues Pull Requests Packages Releases Wiki Activity

add possibility to only run timing for a specific operation

Browse Source
This commit is contained in:
Steffen Jaeckel 2017-09-13 17:20:27 +02:00
parent 0729166b25
commit 00bee4c975
1 changed files with 72 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

91
demo/timing.c
View File

@ -1,4 +1,5 @@
/* TFM timing analysis */
#define _GNU_SOURCE
#include <tfm.h>
#include <time.h>
#include <unistd.h>
@ -65,21 +66,11 @@ static void print_line(ulong64 b, ulong64 t)
printf("%llu;%s;%llu;%llu\n", ticks, p_str, b, t);
}
int main(void)
static void Addition(ulong64 t1)
{
fp_int a,b,c,d;
ulong64 t1, t2;
fp_digit fp;
fp_int a,b,c;
ulong64 t2;
unsigned long t, ix;
t1 = TIMFUNC();
sleep(1);
ticks = TIMFUNC() - t1;
fprintf(stderr, "Ticks per second: %llu\n", ticks);
printf("Ticks/sec;Algorithm;bits;time\n");
/* do some timings... */
print_start("Addition");
for (t = 2; t <= FP_SIZE / 2; t += 2) {
fp_zero(&a);
fp_zero(&b);
@ -109,7 +100,13 @@ int main(void)
}
print_line(t * DIGIT_BIT, t2);
}
print_start("Multiplication");
}
static void Multiplication(ulong64 t1)
{
fp_int a,b,c;
ulong64 t2;
unsigned long t, ix;
for (t = 2; t < FP_SIZE / 2; t += 2) {
fp_zero(&a);
fp_zero(&b);
@ -259,8 +256,13 @@ int main(void)
}
print_line(t * DIGIT_BIT, t2);
}
}
print_start("Squaring");
static void Squaring(ulong64 t1)
{
fp_int a,b;
ulong64 t2;
unsigned long t, ix;
for (t = 2; t < FP_SIZE / 2; t += 2) {
fp_zero(&a);
fp_zero(&b);
@ -407,8 +409,13 @@ int main(void)
}
print_line(t * DIGIT_BIT, t2);
}
}
print_start("Invmod");
static void Invmod(ulong64 t1)
{
fp_int a,b,c;
ulong64 t2;
unsigned long t, ix;
for (t = 2; t < FP_SIZE / 2; t += 2) {
fp_zero(&a);
for (ix = 0; ix < t; ix++) {
@ -497,8 +504,14 @@ int main(void)
}
print_line(t * DIGIT_BIT, t2);
}
}
print_start("Montgomery");
static void Montgomery(ulong64 t1)
{
fp_int a,b,c,d;
ulong64 t2;
fp_digit fp;
unsigned long t, ix;
for (t = 2; t <= (FP_SIZE / 2) - 4; t += 2) {
// printf("%5lu-bit: %9llu\n", t * DIGIT_BIT, t2);
fp_zero(&a);
@ -590,9 +603,13 @@ int main(void)
}
print_line(t * DIGIT_BIT, t2);
}
}
print_start("Exptmod");
static void Exptmod(ulong64 t1)
{
fp_int a,b,c,d;
ulong64 t2;
unsigned long t, ix;
for (t = 512 / DIGIT_BIT; t <= (FP_SIZE / 2) - 2; t += 256 / DIGIT_BIT) {
fp_zero(&a);
fp_zero(&b);
@ -621,5 +638,41 @@ int main(void)
}
print_line(t * DIGIT_BIT, t2);
}
}
#define FN(n) { n, #n }
struct {
void (*fn)(ulong64 t1);
const char* name;
} funcs[] = {
FN(Addition),
FN(Multiplication),
FN(Squaring),
FN(Invmod),
FN(Montgomery),
FN(Exptmod),
};
int main(int argc, char **argv)
{
ulong64 t1;
unsigned int t;
char* arg = NULL;
if (argc > 1) arg = argv[1];
t1 = TIMFUNC();
sleep(1);
ticks = TIMFUNC() - t1;
fprintf(stderr, "Ticks per second: %llu\n", ticks);
printf("Ticks/sec;Algorithm;bits;time\n");
/* do some timings... */
for (t = 0; t < sizeof(funcs)/sizeof(funcs[0]); ++t) {
if(arg != NULL && strcasestr(funcs[t].name, arg) == NULL) continue;
print_start(funcs[t].name);
funcs[t].fn(t1);
}
return 0;
}