Date: Thu, 29 Nov 2012 12:01:57 -0600 (CST) From: Bryan Venteicher <bryanv@daemoninthecloset.org> To: "Constantine A. Murenin" <mureninc@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: virtio for 9.1-R Message-ID: <629913274.1988.1354212117368.JavaMail.root@daemoninthecloset.org> In-Reply-To: <CAPKkNb4YpcOYAuLCUy8rDoqJFcGqAsRotyGY_GGim23MQcZYbg@mail.gmail.com>
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Hi, <trim> > > What's the actual reallife performance benefits from virtio? > Twofold, > threefold, more, less? > A magnitude or more. I can push 6-7Gbs through vtnet vs. <400Mbs with the emulated e1000. The best advice of course is just to try it out in your environment. It may not matter depending on your needs. IIRC, I could get Linux VirtIO to do 8-9Gbs in the same setup. I hope to close that gap with my upcoming work. Bryan > Linux-KVM web-site, http://www.linux-kvm.org/page/Virtio, mentions > that they can push 1Gbps or so through the virtio network driver, but > the number seems meaningless, since no context is established of the > KVM performance prior to virtio. > > Another official-looking page, http://wiki.libvirt.org/page/Virtio, > fails to make any number-based sales pitch whatsoever, whereas > http://www.linux-kvm.org/page/Using_VirtIO_NIC likewise attempts to > show up some random meaningless numbers, still failing to establish > the context of what the performance is like without virtio. > > C. > _______________________________________________ > freebsd-stable@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to > "freebsd-stable-unsubscribe@freebsd.org" >
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