[PATCH] eal/windows: set pthread affinity

[Narcisa Ana Maria Vasile]

On Thu, Jan 20, 2022 at 04:17:49PM -0800, Pallavi Kadam wrote:
> 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");
>  	}
>  
Acked-by: Narcisa Vasile <navasile at linux.microsoft.com>