Re: [PATCH 4/6] rt-tests: cyclicdeadline: Add options to usage

[John Kacur <jkacur@redhat.com>]

On Tue, 18 Jun 2019, Kurt Kanzenbach wrote:

> The current usage doesn't show the available options:
> 
>  $ sudo ./cyclicdeadline -h
>  usage: cyclicdeadline
> 
> So, add the options to the help text to see what can be configured.
> 
> Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de>
> ---
>  src/sched_deadline/cyclicdeadline.c | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/src/sched_deadline/cyclicdeadline.c b/src/sched_deadline/cyclicdeadline.c
> index 17786db45612..7cffe826b944 100644
> --- a/src/sched_deadline/cyclicdeadline.c
> +++ b/src/sched_deadline/cyclicdeadline.c
> @@ -631,8 +631,16 @@ static void usage(char **argv)
>  		p--;
>  	p++;
>  
> -	printf("usage: %s\n"
> -	       "\n",p);
> +	printf("usage: %s [options]\n"
> +	       " -h - Show this help menu\n"
> +	       " -a - Use all CPUs\n"
> +	       " -c cpulist - Comma/hyphen separated list of CPUs to run deadline tasks on\n"
> +	       " -i interval(us) - The shortest deadline for the tasks (default 1000us)\n"
> +	       " -s step(us) - The amount to increase the deadline for each task (default 500us)\n"
> +	       " -t threads - The number of threads to run as deadline (default 1)\n"
> +	       " -D time - Specify a length for the test run\n"
> +	       "           Append 'm', 'h', or 'd' to specify minutes, hours or days\n"
> +	       "\n", p);
>  	exit(-1);
>  }
>  
> -- 
> 2.11.0
> 
> 
Signed-off-by: John Kacur <jkacur@redhat.com>