Date: Sat, 5 Sep 2015 14:44:37 +0000 (UTC) From: Nomad Esst <noname.esst@yahoo.com> To: FreeBSD Net <freebsd-net@freebsd.org> Subject: em, igb performance test Message-ID: <912205684.2111325.1441464277341.JavaMail.yahoo@mail.yahoo.com>
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Hi allDuring some performance tests, we found out some weird problems. We use a shell script that do the following : do from 1 to 10Shutdown em/igb interfacesleep 3Bring em/igb interface uptcpreplay -i em0 -l ospf_hello.pcap sleep3end By running this shell on one side we expect 10 ospf hello packets to get arrived at the other side, but tcpdump (on the other side) shows 4, sometimes 8 and etc ... (not all 10 packets are arrived at the other side). We test this scenario with a Cisco router, and all packets are received at the Cisco side. What causes this packet loss in FreeBSD (maybe in em or igb drivers)? I know that this scenario may not have any use in the real world, but I'm curious, why Cisco don't have such behavior. Thanks in advance. Regards. From owner-freebsd-net@freebsd.org Sat Sep 5 16:48:02 2015 Return-Path: <owner-freebsd-net@freebsd.org> Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 162019CB71F for <freebsd-net@mailman.ysv.freebsd.org>; Sat, 5 Sep 2015 16:48:02 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0196C18CB for <freebsd-net@FreeBSD.org>; Sat, 5 Sep 2015 16:48:02 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id t85Gm1ds020016 for <freebsd-net@FreeBSD.org>; Sat, 5 Sep 2015 16:48:01 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 202875] ixv driver in 11.0-CURRENT doesn't pass traffic using KVM hypervisor Date: Sat, 05 Sep 2015 16:48:02 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.0-CURRENT X-Bugzilla-Keywords: IntelNetworking X-Bugzilla-Severity: Affects Many People X-Bugzilla-Who: pkelsey@freebsd.org X-Bugzilla-Status: New X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-net@FreeBSD.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: <bug-202875-2472-rxWRXSELP8@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-202875-2472@https.bugs.freebsd.org/bugzilla/> References: <bug-202875-2472@https.bugs.freebsd.org/bugzilla/> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-net>, <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net/>; List-Post: <mailto:freebsd-net@freebsd.org> List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-net>, <mailto:freebsd-net-request@freebsd.org?subject=subscribe> X-List-Received-Date: Sat, 05 Sep 2015 16:48:02 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id 2875 --- Comment #2 from Patrick Kelsey <pkelsey@freebsd.org> --- (In reply to Jeff Pieper from comment #0) What are the results when you only attach an 11.0-CURRENT guest in step 3 of your reproduction steps? -- You are receiving this mail because: You are the assignee for the bug.
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