Le 21/02/2019 à 08:41, Len Brown a écrit :
>
> Here is my list of applications that care about the new CPUID leaf
> and the concepts of packages and die:
>
> cpuid
> lscpu
> x86_energy_perf_policy
> turbostat
You may add hwloc/lstopo which is used by most HPC runtimes (including
your employers'
Hi Brice,
Thank you for your suggestions!
> Patches #4 and #5 are changing the meaning the core_siblings (in the
> past, it always returned all threads in the entire package). All
> existing user-space tools will see each die as a separate package until
> they are updated to read die_siblings too.
Le 19/02/2019 à 04:40, Len Brown a écrit :
> From: Len Brown
>
> like core_siblings, except it shows which die are in the same package.
>
> This is needed for lscpu(1) to correctly display die topology.
>
> Signed-off-by: Len Brown
> Cc: linux-doc@vger.kernel.org
> Signed-off-by: Len Brown
> ---
On Tue, Feb 19, 2019 at 02:33:59PM -0500, Liang, Kan wrote:
> Besides the generic document, I think we should update x86 document as well,
> which is in Documentation/x86/topology.txt.
>
> The definition of topology_core_cpumask has to be changed to per die, right?
That's what the change to match
On 2/19/2019 1:43 PM, Brown, Len wrote:
Thanks for the comments, Kan,
diff --git a/Documentation/cputopology.txt
b/Documentation/cputopology.txt index 287213b4517b..7dd2ae3df233
100644
--- a/Documentation/cputopology.txt
+++ b/Documentation/cputopology.txt
@@ -56,6 +56,16 @@ core_siblings_li
Thanks for the comments, Kan,
>> diff --git a/Documentation/cputopology.txt
>> b/Documentation/cputopology.txt index 287213b4517b..7dd2ae3df233
>> 100644
>> --- a/Documentation/cputopology.txt
>> +++ b/Documentation/cputopology.txt
>> @@ -56,6 +56,16 @@ core_siblings_list:
>> human-readable
On 2/18/2019 10:40 PM, Len Brown wrote:
From: Len Brown
like core_siblings, except it shows which die are in the same package.
This is needed for lscpu(1) to correctly display die topology.
Signed-off-by: Len Brown
Cc: linux-doc@vger.kernel.org
Signed-off-by: Len Brown
---
Documentatio
like core_siblings, except it shows which die are in the same package.
This is needed for lscpu(1) to correctly display die topology.
Signed-off-by: Len Brown
Cc: linux-doc@vger.kernel.org
Signed-off-by: Len Brown
---
Documentation/cputopology.txt | 10 ++
arch/x86/include/asm/smp.h
