[AMD Official Use Only - General] Hi DPDK Techboard,
Request to add this topic for discussion in the next techboard meeting. 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
