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Date: Wed, 23 Oct 2024 09:54:54 -0700
From: Stephen Hemminger <stephen@networkplumber.org>
To: David Aldrich <david.aldrich.ntml@gmail.com>
Cc: users <users@dpdk.org>
Subject: Re: Help needed with hugepages
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On Wed, 23 Oct 2024 17:51:28 +0100
David Aldrich <david.aldrich.ntml@gmail.com> wrote:

> I guess it is because the huge pages are not mounted. Is mounting
> required if using kernel parameters to specify the sizes?
>=20
> On Wed, Oct 23, 2024 at 5:47=E2=80=AFPM David Aldrich
> <david.aldrich.ntml@gmail.com> wrote:
> >
> > On Wed, Oct 23, 2024 at 4:39=E2=80=AFPM Stephen Hemminger
> > <stephen@networkplumber.org> wrote: =20
> > >
> > > On Wed, 23 Oct 2024 16:04:06 +0100
> > > David Aldrich <david.aldrich.ntml@gmail.com> wrote:
> > > =20
> > > > Hi, we are running on Ubuntu 24.04. The kernel parameters include:
> > > >
> > > > default_hugepagesz=3D1G hugepagesz=3D1G hugepages=3D25 hugepagesz=
=3D2M hugepages=3D1024
> > > > =20
> > >
> > > Maybe mixing hugepage sizes can cause confusion?
> > >
> > > Did you try using dpdk-hugepages script? =20
> >
> > Thanks. The script shows:
> >
> > $ dpdk-hugepages.py -s
> > Node Pages Size Total
> > 0    1024  2Mb    2Gb
> > 0    25    1Gb    25Gb
> >
> > So that looks correct. =20

The DPDK uses the mounted huge pages to find/use them.


https://edc.intel.com/content/www/us/en/design/products/ethernet/config-gui=
de-e810-dpdk/hugepages-setup/