On Thu, Mar 27, 2014 at 07:50:17PM -0400, Ramkumar Ramachandra wrote:
> Currently,
> 
>   $ perf bench numa mem
> 
> errors out with usage information. To make this more user-friendly, let
> us provide a minimum set of default values required for a test
> run. As an added bonus,
> 
>   $ perf bench all
> 
> now goes all the way to completion.
> 
> Cc: Ingo Molnar <[email protected]>
> Cc: Jiri Olsa <[email protected]>
> Cc: David Ahern <[email protected]>
> Cc: Arnaldo Carvalho de Melo <[email protected]>
> Signed-off-by: Ramkumar Ramachandra <[email protected]>
> ---
>  tools/perf/bench/numa.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
> index d4c83c6..20697fb 100644
> --- a/tools/perf/bench/numa.c
> +++ b/tools/perf/bench/numa.c
> @@ -1593,6 +1593,10 @@ static void init_params(struct params *p, const char 
> *name, int argc, const char
>       p->data_rand_walk               = true;
>       p->nr_loops                     = -1;
>       p->init_random                  = true;
> +     p->mb_global_str                = "1";
> +     p->nr_proc                      = 1;
> +     p->nr_threads                   = 1;
> +     p->nr_secs                      = 5;

hi,
I dont claim to understand this benchmark, but I'm now getting this:

$ ./perf bench numa all
# Running numa/mem benchmark...

SNIP

 ###
 # 1 task will execute (on 1 nodes, 4 CPUs):
 #         -1x     1MB global  shared mem operations
 #         -1x     0MB process shared mem operations
 #         -1x     0MB thread  local  mem operations
 ###
...


'-1x' does not seem right/intentional for default case

thanks,
jirka
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