mirror of
https://github.com/u-boot/u-boot.git
synced 2024-11-25 21:24:21 +08:00
ca366d0e38
The 'time' command runs and reports execution time of commands. Sample usage: -------------------- u-boot# time crc 0x1000 1000 CRC32 for 00001000 ... 00001fff ==> ae94dc4b time: 0.004 seconds, 4 ticks -------------------- Signed-off-by: Che-Liang Chiou <clchiou@chromium.org> Acked-by: Mike Frysinger <vapier@gentoo.org>
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2011 The Chromium OS Authors.
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
|
|
/*
|
|
* TODO(clchiou): This function actually minics the bottom-half of the
|
|
* run_command() function. Since this function has ARM-dependent timer
|
|
* codes, we cannot merge it with the run_command() for now.
|
|
*/
|
|
static int run_command_and_time_it(int flag, int argc, char * const argv[],
|
|
ulong *cycles)
|
|
{
|
|
cmd_tbl_t *cmdtp = find_cmd(argv[0]);
|
|
int retval = 0;
|
|
|
|
if (!cmdtp) {
|
|
printf("%s: command not found\n", argv[0]);
|
|
return 1;
|
|
}
|
|
if (argc > cmdtp->maxargs)
|
|
return cmd_usage(cmdtp);
|
|
|
|
/*
|
|
* TODO(clchiou): get_timer_masked() is only defined in certain ARM
|
|
* boards. We could use the new timer API that Graeme is proposing
|
|
* so that this piece of code would be arch-independent.
|
|
*/
|
|
*cycles = get_timer_masked();
|
|
retval = cmdtp->cmd(cmdtp, flag, argc, argv);
|
|
*cycles = get_timer_masked() - *cycles;
|
|
|
|
return retval;
|
|
}
|
|
|
|
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, %lu ticks\n",
|
|
seconds, milliseconds, cycles);
|
|
}
|
|
|
|
static int do_time(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
ulong cycles = 0;
|
|
int retval = 0;
|
|
|
|
if (argc == 1)
|
|
return cmd_usage(cmdtp);
|
|
|
|
retval = run_command_and_time_it(0, argc - 1, argv + 1, &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");
|