From nobody Tue Nov 04 12:09:23 2025 X-Original-To: net@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4d16h34SmSz6Fx7c for ; Tue, 04 Nov 2025 12:09:23 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R12" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4d16h33sY0z3m58 for ; Tue, 04 Nov 2025 12:09:23 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1762258163; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IeH7XxyU7maFGS4gIfBBIreTJLl+fZAv1xuEks2ZEpk=; b=AUKVf+kjp4iSWZ4znUTqfct4qeIQBL4M47+ipOnXfgIIAUo2YtPRij9+xyhsUmS4+jBtqZ 6KMHKTMUKxSSHm6AQMHZE/5sAiCrhmBE88K7qYhNpRir/gdh0AWKjtFYxtJqviHVahmWzo gwy5kmQB7SmCEWAoaVNerysvuNE6o79NPg1fjCrl+EEdTWMVcStSSkLRDJmqlp1lM396Lg /CNqBGeu9WJDUE7rZk/fKAicEay8hGom2KDWsAZ9RdUY9t9+QtMtfBfYC6D1jzK+w9nOC5 zjudZidy+SJwYwu//fTlli9ZyylHKxM0F/1Rg7MZVe0eYI/QgIm/Xp6jtsRihg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1762258163; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=IeH7XxyU7maFGS4gIfBBIreTJLl+fZAv1xuEks2ZEpk=; b=ghVNaWcDeZwvnXDFkp/XCMSGIj1yFj3FG8mBxT2V1diYPi/I4wGKEZRxzOOxWJqusuHfRt yFdh0UMyorxnJMd1IjsF2FyMuFjhylkP9hA9H815UOphTbwwsNaLbntxqRrWtX1iM19/2i VUEiE/SSAzqIDtnVu+QAMaU1UniKS/U87lbXmTN+aDW7N56giDnuGm8da+/GUwtMQbu2zh HDE+U+2uatDLzRc/Fz5rY6HDBzq+ITfRo0w/BbDTGc6w2YO4AlWLksm1mchJkJsibFi8+P Uoum406ebH6jGMEmPcHnq1Mu0776U4z8MDq/K1X6INcsuXdp8oeuvNIpOsABiA== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1762258163; a=rsa-sha256; cv=none; b=eP6CRZvL2uGhJ3GRsN5WE8HLjt3PnJeP3+/Zsr6B000RMHwb1rJAN1RO9XggUys7i2LcLL iDQtz4xaXk9mp/+HTXN+E0j8KnjUkllcy503/EjKTrMxMeGTEuyvm+TSJZFtJGkZxD2kZt Fuvo9dQb+u+Zh9AtRoZff+i02w//3WvoKG981YYi98qLPvxkKnSw5ar4PbZfhqXFlzREMX pEJEtgFjGeXsslcL8sCpnPMjIPjsQUgFIyNmZlBm9bjmKqyQykZvESZ5OZ2nQffpzL6Qyr Ko88pN/okhukJBKjyfn6i6ywVBOTq1MKXjsq5grGjCHPRyUKygoSpwGKRbKdHQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 4d16h33Nx6zwRt for ; Tue, 04 Nov 2025 12:09:23 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 5A4C9NeJ073175 for ; Tue, 4 Nov 2025 12:09:23 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 5A4C9Nco073174 for net@FreeBSD.org; Tue, 4 Nov 2025 12:09:23 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 290773] vtnet: Severe performance regression since D51686 Date: Tue, 04 Nov 2025 12:09:23 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 14.3-STABLE X-Bugzilla-Keywords: regression X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: tuexen@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: tuexen@freebsd.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D290773 --- Comment #5 from Michael Tuexen --- > And the "dev.vtnet.0.tx_tso_without_csum" is increasing during the test. That is the crucial point. This error condition leads to packet drops.=20 I also observed that TXCSUM is not enabled on vtnet0. Is that intentional? Do you have review D52765 in the tree? Just to double check: In the VM you don't use any additional network feature like jails with epairs, NAT or any sort of IP forwarding or any tunnel interface over vtnet? --=20 You are receiving this mail because: You are on the CC list for the bug.=