1d64377177
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>
45 lines
1.0 KiB
C
45 lines
1.0 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");
|