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>
next in thread | raw e-mail | index | archive | help
Hi allDuring some performance tests, we found out some weird problems. We u= se a shell script that do the following : do from 1 to 10Shutdown em/igb interfacesleep 3Bring em/igb interface uptcp= replay -i em0 -l ospf_hello.pcap=C2=A0sleep3end By running this shell on one side we expect 10 ospf hello packets to get ar= rived 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 c= urious, 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=202875 --- 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.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?912205684.2111325.1441464277341.JavaMail.yahoo>