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Merged
real-or-random merged 1 commit into from
Nov 24, 2023
Merged

bench: add --help option to bench_internal #1445

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32 changes: 31 additions & 1 deletion src/bench_internal.c
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,25 @@
#include "ecmult_impl.h"
#include "bench.h"

static void help(int default_iters) {
printf("Benchmarks various internal routines.\n");
printf("\n");
printf("The default number of iterations for each benchmark is %d. This can be\n", default_iters);
printf("customized using the SECP256K1_BENCH_ITERS environment variable.\n");
printf("\n");
printf("Usage: ./bench_internal [args]\n");
printf("By default, all benchmarks will be run.\n");
printf("args:\n");
printf(" help : display this help and exit\n");
printf(" scalar : all scalar operations (add, half, inverse, mul, negate, split)\n");
printf(" field : all field operations (half, inverse, issquare, mul, normalize, sqr, sqrt)\n");
printf(" group : all group operations (add, double, to_affine)\n");
printf(" ecmult : all point multiplication operations (ecmult_wnaf) \n");
printf(" hash : all hash algorithms (hmac, rng6979, sha256)\n");
printf(" context : all context object operations (context_create)\n");
printf("\n");
}

typedef struct {
secp256k1_scalar scalar[2];
secp256k1_fe fe[4];
Expand Down Expand Up @@ -365,8 +384,19 @@ static void bench_context(void* arg, int iters) {

int main(int argc, char **argv) {
bench_inv data;
int iters = get_iters(20000);
int default_iters = 20000;
int iters = get_iters(default_iters);
int d = argc == 1; /* default */

if (argc > 1) {
if (have_flag(argc, argv, "-h")
|| have_flag(argc, argv, "--help")
|| have_flag(argc, argv, "help")) {
help(default_iters);
return 0;
}
}

print_output_table_header_row();

if (d || have_flag(argc, argv, "scalar") || have_flag(argc, argv, "half")) run_benchmark("scalar_half", bench_scalar_half, bench_setup, NULL, &data, 10, iters*100);
Expand Down