f8fc109960
repo: https://github.com/u-boot/u-boot commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91 Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29
37 lines
836 B
C
37 lines
836 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2015 Google, Inc
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*/
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#include <common.h>
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#include <command.h>
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#include <div64.h>
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#include "dhry.h"
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static int do_dhry(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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ulong start, duration, vax_mips;
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u64 dhry_per_sec;
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int iterations = 1000000;
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if (argc > 1)
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iterations = dectoul(argv[1], NULL);
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start = get_timer(0);
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dhry(iterations);
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duration = get_timer(start);
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dhry_per_sec = lldiv(iterations * 1000ULL, duration);
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vax_mips = lldiv(dhry_per_sec, 1757);
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printf("%d iterations in %lu ms: %lu/s, %lu DMIPS\n", iterations,
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duration, (ulong)dhry_per_sec, vax_mips);
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return 0;
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}
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U_BOOT_CMD(
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dhry, 2, 1, do_dhry,
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"[iterations] - run dhrystone benchmark",
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"\n - run the Dhrystone 2.1 benchmark, a rough measure of CPU speed\n"
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);
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