linux-kernel - Re: [PATCH v5 1/2] selftests/resctrl: Adjust effective L3 cache size with SNC enabled

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Message-ID: <e382e6f9-a9fa-44a5-aab7-64c1152eaad1@intel.com>
Date: Tue, 5 Nov 2024 15:28:09 -0800
From: Reinette Chatre <reinette.chatre@...el.com>
To: Maciej Wieczor-Retman <maciej.wieczor-retman@...el.com>,
	<fenghua.yu@...el.com>, <shuah@...nel.org>
CC: <linux-kernel@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
	<ilpo.jarvinen@...ux.intel.com>, <tony.luck@...el.com>
Subject: Re: [PATCH v5 1/2] selftests/resctrl: Adjust effective L3 cache size
 with SNC enabled

Hi Maciej,

On 10/29/24 6:00 AM, Maciej Wieczor-Retman wrote:
> diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h
> index 2dda56084588..851b37c9c38a 100644
> --- a/tools/testing/selftests/resctrl/resctrl.h
> +++ b/tools/testing/selftests/resctrl/resctrl.h
> @@ -11,6 +11,7 @@
>  #include <signal.h>
>  #include <dirent.h>
>  #include <stdbool.h>
> +#include <ctype.h>
>  #include <sys/stat.h>
>  #include <sys/ioctl.h>
>  #include <sys/mount.h>
> @@ -43,6 +44,8 @@
>  
>  #define DEFAULT_SPAN		(250 * MB)
>  
> +#define MAX_SNC		4
> +

fyi, it seems that 6 is the new max:
https://lore.kernel.org/all/20241031220213.17991-1-tony.luck@intel.com/

Reinette