On Sun, Mar 7, 2010 at 9:48 PM, Carsten Emde <C.Emde@xxxxxxxxx> wrote:
> Add SMP testing option (-S, --smp) to svsematest, same as in
> cyclictest.
>
> Signed-off-by: Carsten Emde <C.Emde@xxxxxxxxx>
>
> Index: rt-tests/src/svsematest/svsematest.c
> ===================================================================
> --- rt-tests.orig/src/svsematest/svsematest.c
> +++ rt-tests/src/svsematest/svsematest.c
> @@ -248,6 +248,8 @@ static void display_help(void)
> "-i INTV --interval=INTV base interval of thread in us default=1000\n"
> "-l LOOPS --loops=LOOPS number of loops: default=0(endless)\n"
> "-p PRIO --prio=PRIO priority\n"
> + "-S --smp SMP testing: options -a -t and same priority\n"
> + " of all threads\n"
> "-t --threads one thread per available processor\n"
> "-t [NUM] --threads=NUM number of threads:\n"
> " without NUM, threads = max_cpus\n"
> @@ -263,6 +265,8 @@ static int num_threads = 1;
> static int max_cycles;
> static int interval = 1000;
> static int distance = 500;
> +static int smp;
> +static int sameprio;
>
> static void process_options (int argc, char *argv[])
> {
> @@ -281,16 +285,21 @@ static void process_options (int argc, c
> {"interval", required_argument, NULL, 'i'},
> {"loops", required_argument, NULL, 'l'},
> {"priority", required_argument, NULL, 'p'},
> + {"smp", no_argument, NULL, 'S'},
> {"threads", optional_argument, NULL, 't'},
> {"help", no_argument, NULL, '?'},
> {NULL, 0, NULL, 0}
> };
> - int c = getopt_long (argc, argv, "a::b:d:f::i:l:p:t::",
> + int c = getopt_long (argc, argv, "a::b:d:f::i:l:p:St::",
> long_options, &option_index);
> if (c == -1)
> break;
> switch (c) {
> case 'a':
> + if (smp) {
> + warn("-a ignored due to --smp\n");
> + break;
> + }
> if (optarg != NULL) {
> affinity = atoi(optarg);
> setaffinity = AFFINITY_SPECIFIED;
> @@ -317,7 +326,16 @@ static void process_options (int argc, c
> case 'i': interval = atoi(optarg); break;
> case 'l': max_cycles = atoi(optarg); break;
> case 'p': priority = atoi(optarg); break;
> + case 'S':
> + smp = 1;
> + num_threads = max_cpus;
> + setaffinity = AFFINITY_USEALL;
> + break;
> case 't':
> + if (smp) {
> + warn("-t ignored due to --smp\n");
> + break;
> + }
> if (optarg != NULL)
> num_threads = atoi(optarg);
> else if (optind<argc && atoi(argv[optind]))
> @@ -347,6 +365,9 @@ static void process_options (int argc, c
> if (priority < 0 || priority > 99)
> error = 1;
>
> + if (priority && smp)
> + sameprio = 1;
> +
> tracelimit = thistracelimit;
> }
> if (error)
> @@ -525,7 +546,7 @@ int main(int argc, char *argv[])
> }
> receiver[i].priority = priority;
> receiver[i].tracelimit = tracelimit;
> - if (priority > 0)
> + if (priority > 1 && !sameprio)
> priority--;
> receiver[i].delay.tv_sec = interval / USEC_PER_SEC;
> receiver[i].delay.tv_nsec = (interval % USEC_PER_SEC) * 1000;
>
> --
Acked-by: John Kacur <jkacur@xxxxxxxxxx>
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