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Pass num of iters to benchmarks as variable, and define envvar

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This commit is contained in:
Elichai Turkel
2020-03-04 15:13:35 +02:00
parent 02dd5f1bbb
commit ca4906b02e
7 changed files with 150 additions and 123 deletions
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41
src/bench_ecmult.c
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@@ -18,7 +18,6 @@
#include "secp256k1.c"
#define POINTS 32768
#define ITERS 10000
typedef struct {
/* Setup once in advance */
@@ -55,13 +54,13 @@ static int bench_callback(secp256k1_scalar* sc, secp256k1_ge* ge, size_t idx, vo
return 1;
}
static void bench_ecmult(void* arg) {
static void bench_ecmult(void* arg, int iters) {
bench_data* data = (bench_data*)arg;
size_t count = data->count;
int includes_g = data->includes_g;
size_t iters = 1 + ITERS / count;
size_t iter;
int iter;
int count = data->count;
iters = iters / data->count;
for (iter = 0; iter < iters; ++iter) {
data->ecmult_multi(&data->ctx->error_callback, &data->ctx->ecmult_ctx, data->scratch, &data->output[iter], data->includes_g ? &data->scalars[data->offset1] : NULL, bench_callback, arg, count - includes_g);
@@ -76,10 +75,10 @@ static void bench_ecmult_setup(void* arg) {
data->offset2 = (data->count * 0x7f6f537b + 0x6a1a8f49) % POINTS;
}
static void bench_ecmult_teardown(void* arg) {
static void bench_ecmult_teardown(void* arg, int iters) {
bench_data* data = (bench_data*)arg;
size_t iters = 1 + ITERS / data->count;
size_t iter;
int iter;
iters = iters / data->count;
/* Verify the results in teardown, to avoid doing comparisons while benchmarking. */
for (iter = 0; iter < iters; ++iter) {
secp256k1_gej tmp;
@@ -104,10 +103,10 @@ static void generate_scalar(uint32_t num, secp256k1_scalar* scalar) {
CHECK(!overflow);
}
static void run_test(bench_data* data, size_t count, int includes_g) {
static void run_test(bench_data* data, size_t count, int includes_g, int num_iters) {
char str[32];
static const secp256k1_scalar zero = SECP256K1_SCALAR_CONST(0, 0, 0, 0, 0, 0, 0, 0);
size_t iters = 1 + ITERS / count;
size_t iters = 1 + num_iters / count;
size_t iter;
data->count = count;
@@ -130,7 +129,7 @@ static void run_test(bench_data* data, size_t count, int includes_g) {
/* Run the benchmark. */
sprintf(str, includes_g ? "ecmult_%ig" : "ecmult_%i", (int)count);
run_benchmark(str, bench_ecmult, bench_ecmult_setup, bench_ecmult_teardown, data, 10, count * (1 + ITERS / count));
run_benchmark(str, bench_ecmult, bench_ecmult_setup, bench_ecmult_teardown, data, 10, count * iters);
}
int main(int argc, char **argv) {
@@ -139,6 +138,8 @@ int main(int argc, char **argv) {
secp256k1_gej* pubkeys_gej;
size_t scratch_size;
int iters = get_iters(10000);
data.ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY);
scratch_size = secp256k1_strauss_scratch_size(POINTS) + STRAUSS_SCRATCH_OBJECTS*16;
data.scratch = secp256k1_scratch_space_create(data.ctx, scratch_size);
@@ -167,8 +168,8 @@ int main(int argc, char **argv) {
data.scalars = malloc(sizeof(secp256k1_scalar) * POINTS);
data.seckeys = malloc(sizeof(secp256k1_scalar) * POINTS);
data.pubkeys = malloc(sizeof(secp256k1_ge) * POINTS);
data.expected_output = malloc(sizeof(secp256k1_gej) * (ITERS + 1));
data.output = malloc(sizeof(secp256k1_gej) * (ITERS + 1));
data.expected_output = malloc(sizeof(secp256k1_gej) * (iters + 1));
data.output = malloc(sizeof(secp256k1_gej) * (iters + 1));
/* Generate a set of scalars, and private/public keypairs. */
pubkeys_gej = malloc(sizeof(secp256k1_gej) * POINTS);
@@ -185,14 +186,20 @@ int main(int argc, char **argv) {
free(pubkeys_gej);
for (i = 1; i <= 8; ++i) {
run_test(&data, i, 1);
run_test(&data, i, 1, iters);
}
for (p = 0; p <= 11; ++p) {
for (i = 9; i <= 16; ++i) {
run_test(&data, i << p, 1);
/* This is disabled with low count of iterations because the loop runs 77 times even with iters=1
* and the higher it goes the longer the computation takes(more points)
* So we don't run this benchmark with low iterations to prevent slow down */
if (iters > 2) {
for (p = 0; p <= 11; ++p) {
for (i = 9; i <= 16; ++i) {
run_test(&data, i << p, 1, iters);
}
}
}
if (data.scratch != NULL) {
secp256k1_scratch_space_destroy(data.ctx, data.scratch);
}