On 16/10/2023 06:20, Tummala, Sivaprasad wrote:
[AMD Official Use Only - General]
Hi DPDK Techboard,
Request to add this topic for discussion in the next techboard meeting.
Hi Sivaprasad,
Are you or a representative (Ferruh?) able to attend the techboard
meeting (3pm UTC Wednesday) to discuss this item?
thanks,
Kevin.
Thanks & Regards,
Sivaprasad
-----Original Message-----
From: Tummala, Sivaprasad <sivaprasad.tumm...@amd.com>
Sent: Monday, October 16, 2023 10:44 AM
To: David Marchand <david.march...@redhat.com>
Cc: bruce.richard...@intel.com; konstantin.v.anan...@yandex.ru; dev@dpdk.org;
dpdk-techboard <techbo...@dpdk.org>; Thomas Monjalon
<tho...@monjalon.net>
Subject: RE: [PATCH] config/x86: config support for AMD EPYC processors
[AMD Official Use Only - General]
Caution: This message originated from an External Source. Use proper caution
when opening attachments, clicking links, or responding.
[AMD Official Use Only - General]
-----Original Message-----
From: David Marchand <david.march...@redhat.com>
Sent: Friday, October 6, 2023 1:21 PM
To: Tummala, Sivaprasad <sivaprasad.tumm...@amd.com>
Cc: bruce.richard...@intel.com; konstantin.v.anan...@yandex.ru;
dev@dpdk.org; dpdk-techboard <techbo...@dpdk.org>; Thomas Monjalon
<tho...@monjalon.net>
Subject: Re: [PATCH] config/x86: config support for AMD EPYC
processors
Caution: This message originated from an External Source. Use proper
caution when opening attachments, clicking links, or responding.
On Mon, Sep 25, 2023 at 5:11 PM Sivaprasad Tummala
<sivaprasad.tumm...@amd.com> wrote:
From: Sivaprasad Tummala <sivaprasad.tumm...@amd.com>
By default, max lcores are limited to 128 for x86 platforms.
On AMD EPYC processors, this limit needs to be increased to leverage
all the cores.
The patch adjusts the limit specifically for native compilation on
AMD EPYC CPUs.
Signed-off-by: Sivaprasad Tummala <sivaprasad.tumm...@amd.com>
This patch is a revamp of
http://inbox.dpdk.org/dev/BY5PR12MB3681C3FC6676BC03F0B42CCC96789@BY5PR
12MB3681.namprd12.prod.outlook.com/
for which a discussion at techboard is supposed to have taken place.
But I didn't find a trace of it.
One option that had been discussed in the previous thread was to
increase the max number of cores for x86.
I am unclear if this option has been properly evaluated/debatted.
Can the topic be brought again at techboard?
Hi David,
The patch is intended to detect AMD platforms and enable all CPU cores by
default
on native builds.
As an optimization for memory footprint, users can override this by specifying
"-
Dmax_lcores" option based on DPDK lcores required for their usecases.
Sure, will request to add this topic for discussion at techboard.
Thanks.
--
David Marchand
