59 lines
1.1 KiB
C
59 lines
1.1 KiB
C
#include <common.h>
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#include <command.h>
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#include <clock.h>
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#include <asm-generic/div64.h>
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#include <malloc.h>
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static int do_time(int argc, char *argv[])
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{
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int i;
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unsigned char *buf;
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u64 start, end, diff64;
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unsigned long diff;
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int len = 1; /* '\0' */
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if (argc < 2)
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return COMMAND_ERROR_USAGE;
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for (i = 1; i < argc; i++)
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len += strlen(argv[i]) + 1;
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buf = xzalloc(len);
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for (i = 1; i < argc; i++) {
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strcat(buf, argv[i]);
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strcat(buf, " ");
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}
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start = get_time_ns();
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run_command(buf);
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end = get_time_ns();
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diff64 = end - start;
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do_div(diff64, 1000000);
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diff = diff64;
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printf("time: %lums\n", diff);
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free(buf);
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return 0;
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}
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BAREBOX_CMD_HELP_START(time)
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BAREBOX_CMD_HELP_TEXT("Note: This command depends on COMMAND being interruptible,")
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BAREBOX_CMD_HELP_TEXT("otherwise the timer may overrun resulting in incorrect results")
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BAREBOX_CMD_HELP_END
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BAREBOX_CMD_START(time)
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.cmd = do_time,
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BAREBOX_CMD_DESC("measure execution duration of a command")
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BAREBOX_CMD_OPTS("COMMAND")
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BAREBOX_CMD_GROUP(CMD_GRP_MISC)
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BAREBOX_CMD_HELP(cmd_time_help)
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BAREBOX_CMD_END
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