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[204.195.96.226]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71ec13eaac5sm6792108b3a.172.2024.10.23.09.54.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Oct 2024 09:54:55 -0700 (PDT) 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 Message-ID: <20241023095454.459bd52b@hermes.local> In-Reply-To: <CAJK_ieg+90LkcPHJyh4bhd4JPHhnwYy43LS6Yux2zKfLjry6kw@mail.gmail.com> References: <CAJK_iehzaOoGS48PSj1h9n4AK6GEaDP2CPxkBZUrK6rYhYLFxQ@mail.gmail.com> <20241023083917.6580b33b@hermes.local> <CAJK_ieghUZDn8WQ47+d7X=qjCfGD6VCKF6=mno_eWLKq8xZaSA@mail.gmail.com> <CAJK_ieg+90LkcPHJyh4bhd4JPHhnwYy43LS6Yux2zKfLjry6kw@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK usage discussions <users.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/users>, <mailto:users-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/users/> List-Post: <mailto:users@dpdk.org> List-Help: <mailto:users-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/users>, <mailto:users-request@dpdk.org?subject=subscribe> Errors-To: users-bounces@dpdk.org 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/