60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include "../sha256/sha256_backend.h"
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static double now_seconds(void) {
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return (double)ts.tv_sec + (double)ts.tv_nsec / 1e9;
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}
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int main(int argc, char **argv) {
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uint8_t header_76[76];
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sha256d80_midstate_t mid;
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sha256_state_t states[4];
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uint32_t target_words[8];
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uint32_t nonce = 0;
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uint64_t hashes = 0;
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volatile uint32_t sink = 0;
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double seconds = 10.0;
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double t0;
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int i;
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if (argc > 1) {
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seconds = strtod(argv[1], NULL);
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if (seconds <= 0.0) {
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seconds = 10.0;
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}
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}
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for (i = 0; i < 76; i++) {
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header_76[i] = (uint8_t)(i * 13 + 7);
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}
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for (i = 0; i < 8; i++) {
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target_words[i] = 0xFFFFFFFFU;
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}
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sha256d80_midstate_init(&mid, header_76);
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t0 = now_seconds();
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while ((now_seconds() - t0) < seconds) {
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uint32_t mask = sha256d80_scan_4way(&mid, nonce, target_words, states);
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sink ^= states[0].h[0] ^ states[1].h[0] ^ states[2].h[0] ^ states[3].h[0] ^ mask;
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nonce += 4U;
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hashes += 4U;
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}
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{
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double elapsed = now_seconds() - t0;
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double khs = (double)hashes / elapsed / 1000.0;
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printf("bench_hash: %.2f kH/s | hashes=%llu | sink=%08x\n", khs, (unsigned long long)hashes, sink);
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}
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return 0;
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}
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