[dpdk-dev] [PATCH] examples/helloworld: add output of core id and socket id

Ferruh Yigit ferruh.yigit at intel.com
Wed May 17 16:16:02 CEST 2017


On 5/17/2017 2:49 PM, Wei Dai wrote:
> Adding output of core id and socket id of each lcore/pthread
> can help to understand their relationship.
> And this can also help to examine the usage of the EAL lcore
> settings like -c, -l and --lcore .
> 
> Signed-off-by: Wei Dai <wei.dai at intel.com>
> ---
>  examples/helloworld/main.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/examples/helloworld/main.c b/examples/helloworld/main.c
> index 8b7a2de..fdd8818 100644
> --- a/examples/helloworld/main.c
> +++ b/examples/helloworld/main.c
> @@ -50,7 +50,9 @@ lcore_hello(__attribute__((unused)) void *arg)
>  {
>  	unsigned lcore_id;
>  	lcore_id = rte_lcore_id();
> -	printf("hello from core %u\n", lcore_id);
> +	printf("hello from core %2u at core_id = %2u on socket_id = %2u\n",

It is hard to understand difference from "core" and "core_id", what do
you think using "lcore" and "core" respectively in the message?

> +		lcore_id, lcore_config[lcore_id].core_id,
> +		lcore_config[lcore_id].socket_id);
>  	return 0;
>  }
>  
> 



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