Open Stack

Hi, I'm also interested in it. You submitted a talk about it to Paris
Summit right?

On Thu, Oct 16, 2014 at 10:34 AM, Gareth <academicgareth at gmail.com> wrote:

>
> Here is introducing OSv to all OpenStack developers. OSv team is focusing
> on performance of KVM based guest OS, or cloud application. I'm interested
> in it because of their hard work on optimizing all details. And I had also
> worked on deploying OSv on OpenStack environment. However, since my work is
> only for private interests in off working time, my progress is pretty slow.
> So I have to share my experience and hope other engineers could join it:
>
> # OSv highlights in my mind
>
> 1, Super fast booting time means nearly zero down time services, an
> alternative way to dynamic flavor changing and time improvement for
> deploying instances in KVM based PaaS platform. 2, Great work on
> performance. Cloud engineers could borrow experience from their work on
> guest OS. 3, Better performance on JVM. We could imagine there are many
> overhead and redundancy in host OS/guest OS/JVM. Fixing that could help
> Java applications perform closer to bare-metal.
>
> # Enabling OSv on OpenStack
>
> Actually there should not be any big problems. The steps are that building
> OSv qcow2 image first and boot it via Nova then. You may face some problems
> because OSv image need many new Qemu features, such as virtio-rng-io/vhost
> and enable-kvm flag is necessary.
>
> Fortunately, I don't meet any problems with network, Neutron (actually I
> thought before network in OpenStack maybe hang me for a long time). OSv
> need a tap device and Neutron does good job on it. And then I could access
> OSv service very well.
>
> # OSv based demo
>
> The work I finished is only a memcached cluster. And the result is
> obvious: memory throughout of OSv based instance has 3 times than it in
> traditional virtual machines, and 90% of performance on host OS[0][1].
> Since their work on memcached is quite mature, consider OSv if you need
> build memcached instance.
>
> Another valuable demo cluster is Hadoop. When talking about Hadoop on
> OpenStack, the topic asked most frequently is the performance on virtual
> machines. A known experience is higher version Qemu would help fix disk I/O
> performance[2]. But how  does the overlap in JVM/guest OS? I would love to
> find that, but don't have so much time.
>
> After of all, the purpose of this thread is to bring an interesting topic
> on cloud performance and hope more and more efficient clusters based on
> OpenStack (in production use). I don't have so much time on OSv because
> this just is my personal interest, but I could prove OSv is a valuable way
> and topic.
>
> [0] http://paste.openstack.org/show/121382/
> [1] https://github.com/cloudius-systems/osv/wiki/OSv-Case-Study:-Memcached
> [2]
> https://www.openstack.org/summit/openstack-summit-atlanta-2014/session-videos/presentation/performance-of-hadoop-on-openstack
>
> --
> Gareth
>
> *Cloud Computing, OpenStack, Distributed Storage, Fitness, Basketball*
> *OpenStack contributor, kun_huang at freenode*
> *My promise: if you find any spelling or grammar mistakes in my email from
> Mar 1 2013, notify me *
> *and I'll donate $1 or ￥1 to an open organization you specify.*
>
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>
>


-- 
Zhipeng Huang
Research Assistant
Mobile Ad-Hoc Network Lab, Calit2
University of California, Irvine
Email: zhipengh at uci.edu
Office: Calit2 Building Room 2402
OpenStack, OpenDaylight, OpenCompute affcienado
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