[PATCH] eal/windows: set pthread affinity

[Tal Shnaiderman]

> Subject: [PATCH] eal/windows: set pthread affinity
> 
> External email: Use caution opening links or attachments
> 
> 
> Sometimes OS tries to switch the core. So, bind the lcore thread to a fixed
> core.
> Implement affinity call on Windows similar to Linux.
> 
> Signed-off-by: Qiao Liu <qiao.liu at intel.com>
> Signed-off-by: Pallavi Kadam <pallavi.kadam at intel.com>
> ---
>  lib/eal/windows/eal.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/lib/eal/windows/eal.c b/lib/eal/windows/eal.c index
> 67db7f099a..ca3c41aaa7 100644
> --- a/lib/eal/windows/eal.c
> +++ b/lib/eal/windows/eal.c
> @@ -422,6 +422,10 @@ rte_eal_init(int argc, char **argv)
>                 /* create a thread for each lcore */
>                 if (eal_thread_create(&lcore_config[i].thread_id) != 0)
>                         rte_panic("Cannot create thread\n");
> +               ret = pthread_setaffinity_np(lcore_config[i].thread_id,
> +                       sizeof(rte_cpuset_t), &lcore_config[i].cpuset);
> +               if (ret != 0)
> +                       RTE_LOG(DEBUG, EAL, "Cannot set affinity\n");
>         }
> 
>         /* Initialize services so drivers can register services during probe. */
> --
> 2.31.1.windows.1

Acked-by: Tal Shnaiderman <talshn at nvidia.com>