[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Improve performance between Network driver domain to guest OS
Hello, Shikha On Sun, Oct 06, 2013 at 11:49:13AM +0530, shikha thakur wrote: > Hi all, > I am Shikha Thakur pursuing post graduation from Pune University in > Computer Engineering.Recently, I started my research in Xen hypervisor for > my curriculum project.I am enjoying working with Xen. Being newbie i want > to get more familiar with Xen. > > So, I request all please tell me that my idea for this research is valid or > not? > > Research Topic:: > I am working on "Improving Network I/O virtualization of Xen for Cloud > Computing." > > What's your goal? Higher throughput? Lower latency? Do you have any merit in mind? > > Xen Hypervisor :: > The driver domain based model of Xen for network I/O virtualization > exhibits poor networking performance.Two Experiments are carried out and > they are:- > > 1)Network Performance analysis has been carried out to analyze the > virtualization over- head and analyze the baseline reception, transmission > and forwarding performance of the VMs(shown in fig 1). > > `[image: Inline image 4] > > > 2)Experiment has carried out to find the hardware bottlenecks and it is > observe that the memory latency is the problem for costly driver domain - > virtual machine communication (shown in fig 2). > Sorry the image quality is too low I am not able parse those graphs. But if you have any specific questions regarding Xen network drivers in Linux I will be happy to answer. > > > [image: Inline image 3]Solution:: > As Memory latency is the bottleneck,Can Packet aggregation be applied to > overcome this? > It depends. AIUI packet aggregation can introduce latency too. The only way to prove whether it works is to implement it. :-) Wei. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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