Files
SDK_SG200x_V2/u-boot-2021.10/lib/dhry/cmd_dhry.c
carbon 0545e9dc6d init version 2024-05-07
commit d1edce71135cc6d98c0a4b5729774542b676e769
Author: sophgo-forum-service <forum_service@sophgo.com>
Date:   Fri Mar 15 16:07:33 2024 +0800

    [fix] recommend using ssh method to clone repo.
    [fix] fix sensor driver repo branch name.
2024-05-07 19:36:36 +08:00

37 lines
836 B
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2015 Google, Inc
*/
#include <common.h>
#include <command.h>
#include <div64.h>
#include "dhry.h"
static int do_dhry(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
ulong start, duration, vax_mips;
u64 dhry_per_sec;
int iterations = 1000000;
if (argc > 1)
iterations = dectoul(argv[1], NULL);
start = get_timer(0);
dhry(iterations);
duration = get_timer(start);
dhry_per_sec = lldiv(iterations * 1000ULL, duration);
vax_mips = lldiv(dhry_per_sec, 1757);
printf("%d iterations in %lu ms: %lu/s, %lu DMIPS\n", iterations,
duration, (ulong)dhry_per_sec, vax_mips);
return 0;
}
U_BOOT_CMD(
dhry, 2, 1, do_dhry,
"[iterations] - run dhrystone benchmark",
"\n - run the Dhrystone 2.1 benchmark, a rough measure of CPU speed\n"
);