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[176.103.220.4]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a53244fceasm14255184f8f.82.2025.06.11.01.08.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Jun 2025 01:08:18 -0700 (PDT) Date: Wed, 11 Jun 2025 10:08:16 +0200 From: Stefano Brivio To: Eugenio Perez Martin Subject: Re: vhost-kernel net on pasta: from 26 to 37Gbit/s Message-ID: <20250611100816.71bbf48a@elisabeth> In-Reply-To: References: <20250521120855.5cdaeb04@elisabeth> <20250606183702.0ff9a3c7@elisabeth> <20250610172931.4c730f04@elisabeth> Organization: Red Hat X-Mailer: Claws Mail 4.2.0 (GTK 3.24.49; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: fXsOi_xvnfh8hQDHZBjrElIhTjqizKmYwQLTrGUT2gQ_1749629300 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Message-ID-Hash: 24ZT4BPABP5ZZKL7HLJ2J4NDOG4OPBDB X-Message-ID-Hash: 24ZT4BPABP5ZZKL7HLJ2J4NDOG4OPBDB X-MailFrom: sbrivio@redhat.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: passt-dev@passt.top, Jason Wang , Jeff Nelson , Paul Holzinger X-Mailman-Version: 3.3.8 Precedence: list List-Id: Development discussion and patches for passt Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: On Wed, 11 Jun 2025 09:04:57 +0200 Eugenio Perez Martin wrote: > On Tue, Jun 10, 2025 at 5:29=E2=80=AFPM Stefano Brivio wrote: > > > > On Mon, 9 Jun 2025 11:59:21 +0200 > > Eugenio Perez Martin wrote: > > =20 > > > Getting a table like [1] would give us light about this, especially i= f > > > it is just a matter of running "make performance" or similar. Maybe w= e > > > need to include longer queues? Focus on a given scenario? UDP goes > > > better but TCP? =20 > > > > Well, it's a matter of running ./run under tests (or 'make' there). > > Have you tried that with your patch? It's kind of representative in the > > sense that it uses several message sizes and different values for the > > sending window. >=20 > Yes but it freezes in my env. >=20 > Copying the different windows, top-left: > # tail -f --retry /home/passt/test/test_logs/context_unshare.log > /home/passt/test/test_logs/context_ns.log > tail: warning: --retry only effective for the initial open > =3D=3D> /home/passt/test/test_logs/context_unshare.log <=3D=3D =20 > unshare$ tail: cannot open '/home/passt/test/test_logs/context_ns.log' > for reading: No such file or directory > > [...] > > =3D=3D=3D build/cppcheck > ...skipped. >=20 >=20 > =3D=3D=3D build/clang_tidy > ...skipped. > --- I guess you're missing some dependencies, nstool ('make assets', or 'make' under tests/), or similar. There's a test/README.md file listing most dependencies and also describing how to debug things, essentially: DEBUG=3D1 ./run and have a look at script.log. Patches for whatever issue you might be hitting in your setup are warmly welcome, of course. :) --=20 Stefano