Re: [PATCH] drm/amdkfd: Make process queues logs less verbose

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On Sun, 2020-02-02 at 00:11 +0100, Julian Sax wrote:
> During normal usage, especially if jobs are started and stopped in rapid
> succession, the kernel log is filled with messages like this:
> 
> [38732.522910] Restoring PASID 0x8003 queues
> [38732.666767] Evicting PASID 0x8003 queues
> [38732.714074] Restoring PASID 0x8003 queues
> [38732.815633] Evicting PASID 0x8003 queues
> [38732.834961] Restoring PASID 0x8003 queues
> [38732.840536] Evicting PASID 0x8003 queues
> [38732.869846] Restoring PASID 0x8003 queues
> [38732.893655] Evicting PASID 0x8003 queues
> [38732.927975] Restoring PASID 0x8003 queues
> 
> According to [1], these messages are expected, but they carry little
> value for the end user, so turn them into debug messages.
> 
> [1] https://github.com/RadeonOpenCompute/ROCm/issues/343

trivia:

> diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c
[]
> @@ -604,7 +604,7 @@ static int evict_process_queues_nocpsch(struct device_queue_manager *dqm,
>  		goto out;
> 
>  	pdd = qpd_to_pdd(qpd);
> -	pr_info_ratelimited("Evicting PASID 0x%x queues\n",
> +	pr_debug_ratelimited("Evicting PASID 0x%x queues\n",
>  			    pdd->process->pasid);

It would be nicer to realign all the subsequent lines in a
single statement to the now moved open parenthesis.

> 
>  	/* Mark all queues as evicted. Deactivate all active queues on
> @@ -650,7 +650,7 @@ static int evict_process_queues_cpsch(struct device_queue_manager *dqm,
>  		goto out;
> 
>  	pdd = qpd_to_pdd(qpd);
> -	pr_info_ratelimited("Evicting PASID 0x%x queues\n",
> +	pr_debug_ratelimited("Evicting PASID 0x%x queues\n",
>  			    pdd->process->pasid);

etc...


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