Date: Mon, 31 Dec 2018 08:37:04 +0000 From: bugzilla-noreply@freebsd.org To: vbox@FreeBSD.org Subject: maintainer-feedback requested: [Bug 234520] emulators/virtualbox-ose: NFS over bridged network adapter extremely slow; FreeBSD 12.0 Message-ID: <bug-234520-26505-hGZnaP4WbM@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-234520-26505@https.bugs.freebsd.org/bugzilla/> References: <bug-234520-26505@https.bugs.freebsd.org/bugzilla/>
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Bugzilla Automation <bugzilla@FreeBSD.org> has asked vbox@FreeBSD.org for maintainer-feedback: Bug 234520: emulators/virtualbox-ose: NFS over bridged network adapter extremely slow; FreeBSD 12.0 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234520 --- Description --- Scenario: - Server A: . running FreeBSD 12.0 . re0: <RealTek 8168/8111 B/C/CP/D/DP/E/F/G PCIe Gigabit Ethernet> . providing virtual disks on ZVOLs . acting as VirtualBox host with virtual disks attached directly (via vmd= ks pointing to the ZVOLs) . using bridged networking to re0 . providing NFS storage for FreeBSD ports distfiles - Server B: . running FreeBSD 12.0 . em0: <Intel(R) PRO/1000 Network Connection> . acting as VirtualBox host with virtual disks attached via iSCSI from se= rver A . using bridged networking to em0 - Server C: . running Windows 10 Professional . acting as Hyper-V host with virtual disks attached via iSCSI from serve= r A . using bridged networking to the LAN interface - VirtualBox client: . FreeBSD 12.0 i386 . can run on either server A, B, or C . Builds ports, fetching distfiles from a shared directory on host A via = NFS. Result: - If the client is run on A or C, NFS between the client and server A runs = as usual. - If the client is run on B (i.e., NFS is done over the wire to machine A),= NFS has extremely poor performance, to the point of no throughput at all - The iSCSI provisioning from A for the client on B is running at normal sp= eed (i.e., the emulated machine itself sees normal disk performance) - When B was still running 11.2, NFS performance was normal.
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