u-boot/common/cmd_time.c
Masahiro Yamada 1d64377177 cmd_time: do not show ticks
The command "time" shows the execution time of the command given
to the argument, like this:

    time: 45.293 seconds, 45293 ticks

Since we adopted CONFIG_SYS_HZ = 1000 for all boards,
we always have a simple formula: "1 tick = 0.0001 second".

Showing ticks looks almost redundant.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-05-12 15:19:46 -04:00

44 lines
1 KiB
C

/*
* Copyright (c) 2011 The Chromium OS Authors.
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
static void report_time(ulong cycles)
{
ulong minutes, seconds, milliseconds;
ulong total_seconds, remainder;
total_seconds = cycles / CONFIG_SYS_HZ;
remainder = cycles % CONFIG_SYS_HZ;
minutes = total_seconds / 60;
seconds = total_seconds % 60;
/* approximate millisecond value */
milliseconds = (remainder * 1000 + CONFIG_SYS_HZ / 2) / CONFIG_SYS_HZ;
printf("\ntime:");
if (minutes)
printf(" %lu minutes,", minutes);
printf(" %lu.%03lu seconds\n", seconds, milliseconds);
}
static int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
ulong cycles = 0;
int retval = 0;
int repeatable;
if (argc == 1)
return CMD_RET_USAGE;
retval = cmd_process(0, argc - 1, argv + 1, &repeatable, &cycles);
report_time(cycles);
return retval;
}
U_BOOT_CMD(time, CONFIG_SYS_MAXARGS, 0, do_time,
"run commands and summarize execution time",
"command [args...]\n");