Re: [PATCH i-g-t] lib/intel_compute.c : Increase WMTP loop count

[Francois Dugast <francois.dugast@intel.com>]

Hi Priyanka,

On Tue, Mar 25, 2025 at 10:59:01AM +0530, priyanka.dandamudi@intel.com wrote:
> From: Priyanka Dandamudi <priyanka.dandamudi@intel.com>
> 
> Preemption is not happening and getting failed at the check for long
> kernel with current WMTP loop count. So, increasing the loop count.
> 
> Signed-off-by: Priyanka Dandamudi <priyanka.dandamudi@intel.com>
> ---
>  lib/intel_compute.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/intel_compute.c b/lib/intel_compute.c
> index 28149db53..76d435794 100644
> --- a/lib/intel_compute.c
> +++ b/lib/intel_compute.c
> @@ -52,7 +52,7 @@
>   * WMTP - Walker Mid Thread Preemption
>   */
>  #define TGP_long_kernel_loop_count		10
> -#define WMTP_long_kernel_loop_count		1000000
> +#define WMTP_long_kernel_loop_count		1500000

I am still observing sporadic issues in compute-preempt-many with this
new value, but not with 2000000.

Francois

>  
>  struct bo_dict_entry {
>  	uint64_t addr;
> -- 
> 2.34.1
>