From nobody Wed Oct 22 14:03:04 2025 X-Original-To: freebsd-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 4cs9qJ36pBz6FKkj for ; Wed, 22 Oct 2025 14:03:08 +0000 (UTC) (envelope-from void@f-m.fm) Received: from fhigh-b5-smtp.messagingengine.com (fhigh-b5-smtp.messagingengine.com [202.12.124.156]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4cs9qH3RkPz42m8 for ; Wed, 22 Oct 2025 14:03:07 +0000 (UTC) (envelope-from void@f-m.fm) Authentication-Results: mx1.freebsd.org; dkim=pass header.d=f-m.fm header.s=fm2 header.b=R29YzgxU; dkim=pass header.d=messagingengine.com header.s=fm2 header.b="M 8QCgXN"; dmarc=pass (policy=none) header.from=f-m.fm; spf=pass (mx1.freebsd.org: domain of void@f-m.fm designates 202.12.124.156 as permitted sender) smtp.mailfrom=void@f-m.fm Received: from phl-compute-06.internal (phl-compute-06.internal [10.202.2.46]) by mailfhigh.stl.internal (Postfix) with ESMTP id E3C297A0024 for ; Wed, 22 Oct 2025 10:03:06 -0400 (EDT) Received: from phl-mailfrontend-02 ([10.202.2.163]) by phl-compute-06.internal (MEProxy); Wed, 22 Oct 2025 10:03:06 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=f-m.fm; h=cc :content-type:content-type:date:date:from:from:in-reply-to :message-id:mime-version:reply-to:subject:subject:to:to; s=fm2; t=1761141786; x=1761228186; bh=XjMeSuz/huQlvx3Lr5uQbtG4O1/5DhMg menqcAAJuCw=; b=R29YzgxUkQhrFQq8JB6WcWa5tYGf7eVp4Z4KXwrthCfdqFMX L0pOj8av/c9N32bobsR73Xb+7uWarddEO2W6YRPKAXtsPSFKeDjw1c9bdlYxnCHO avwJzZj/JbfjY+Z5Iu0XT7hWhg1/aCLuXzfKtOQ5cAEz8Jotm5tjV/sgJpW5zq4l ZpaLPR8f0FSvCFE91GVP9kGalMKVVctHSW+0iE+2KB2E6LJdbV1Fm+kXJ8M30HCE N5sAv7LhlIlaLNrYHWC83wPZmdUmRDrubxY6+s7OtVljniTEQTfbKiJAjG9dtF8W r03tzcilNv5mHdbtwYQZ7TJPuOxxw9tx3xS+fQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:content-type:date:date :feedback-id:feedback-id:from:from:in-reply-to:message-id :mime-version:reply-to:subject:subject:to:to:x-me-proxy :x-me-sender:x-me-sender:x-sasl-enc; s=fm2; t=1761141786; x= 1761228186; bh=XjMeSuz/huQlvx3Lr5uQbtG4O1/5DhMgmenqcAAJuCw=; b=M 8QCgXNUNzUOl195jTqTdzD+B3XOdLMSfMvAVO8D+2L86Vzi6UNYvKWi3R0wf4MLN fFBoxFmZYZgGWItCnQ2/MaZxrLGoGWkolk6udQaVPtFiPE4YzTga89P+ON9Npykb hXrnLe6gT8BXDUNmHq+c7neVsRRYp4C4xbl2oeuEFGAWDyoecX0EDxxOhpWKKaYB 5DeoPanx12lMkxWmceEDF7OlHL8eWWmdipq/G2nfJmADZqfWnYvW6qrIuWTEp2rX lm1zOnnEj0MuAmemwOTxSh52E4EX36bxCo9u2aaBXRNqLPz7LSXUbbMO2g2gBqJe ZyudsCFGhut0jCT+J/2ug== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtdeggddugeefjeeiucetufdoteggodetrf dotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfurfetoffkrfgpnffqhgenuceu rghilhhouhhtmecufedttdenucenucfjughrpeffhffvuffkgggtugesthdtredttddtvd enucfhrhhomhepvhhoihguuceovhhoihgusehfqdhmrdhfmheqnecuggftrfgrthhtvghr nhepjeejvdejhfejjeelhfffheduhfduleeiuddvfeegtefhudeigffgheetvdehkefhne cuffhomhgrihhnpehushgvrhdrfhhmnecuvehluhhsthgvrhfuihiivgeptdenucfrrghr rghmpehmrghilhhfrhhomhepvhhoihgusehfqdhmrdhfmhdpnhgspghrtghpthhtohepud dpmhhouggvpehsmhhtphhouhhtpdhrtghpthhtohepfhhrvggvsghsugdqnhgvthesfhhr vggvsghsugdrohhrgh X-ME-Proxy: Feedback-ID: i2541463c:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA for ; Wed, 22 Oct 2025 10:03:06 -0400 (EDT) Date: Wed, 22 Oct 2025 15:03:04 +0100 From: void To: freebsd-net@freebsd.org Subject: vtnet is still slow Message-ID: 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 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.43 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.996]; NEURAL_HAM_MEDIUM(-0.83)[-0.834]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm2,messagingengine.com:s=fm2]; R_SPF_ALLOW(-0.20)[+ip4:202.12.124.128/27]; MIME_GOOD(-0.10)[text/plain]; RCVD_IN_DNSWL_LOW(-0.10)[202.12.124.156:from]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_THREE(0.00)[3]; RCPT_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; ASN(0.00)[asn:151847, ipnet:202.12.124.0/24, country:AU]; RCVD_VIA_SMTP_AUTH(0.00)[]; MISSING_XM_UA(0.00)[]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim] X-Rspamd-Queue-Id: 4cs9qH3RkPz42m8 Hi, I wondered if any work was happening to address the long-standing issue of slow vtnet? (in my case, this leads to slow freebsd guest performance in bhyve compared with every linux guest tested and OpenBSD). I thought maybe the recent bridge work may have ameliorated the problem some, but testing, after configuring a (recent) stable/15 server to use the ip-configured-on-bridge-method, showed no improvement using a (recent) stable/14 guest [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-60.03 sec 3.17 GBytes 454 Mbits/sec 0 sender [ 5] 0.00-60.03 sec 3.17 GBytes 454 Mbits/sec receiver for comparison, an ubuntu 25.04 guest: [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-60.00 sec 6.42 GBytes 919 Mbits/sec 5427 sender [ 5] 0.00-60.00 sec 6.42 GBytes 919 Mbits/sec receiver the baremetal host [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-60.01 sec 6.58 GBytes 941 Mbits/sec 0 sender [ 5] 0.00-60.01 sec 6.58 GBytes 941 Mbits/sec receiver Tests done a year and a half ago on similar hardware showing the same patterns http://void.f-m.fm.user.fm/bhyve-virtio-testing.html --