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Latest Xen Project Blog Posts

A Recap of the Xen Project Developer Summit 2016

The Xen Project descended on Toronto, Canada in late August for its annual Xen Project Developer Summit. The Summit is an opportunity for developers and software engineers to collaborate and discuss the latest advancements of the Xen Project software. It also gives developers a chance to better understand new trends and deployments in the community […]

Xen Project 4.5.5 Maintenance Release is Available

I am pleased to announce the release of Xen 4.5.5. Xen Project Maintenance releases are released in line with our Maintenance Release Policy. We recommend that all users of the 4.5 stable series update to this point release. Xen 4.5.5 is available immediately from its git repository:     xenbits.xenproject.org/gitweb/?p=xen.git;a=shortlog;h=refs/heads/stable-4.5     (tag RELEASE-4.5.5) or from the Xen Project […]

PV Calls: a new paravirtualized protocol for POSIX syscalls

Let’s take a step back and look at the current state of virtualization in the software industry. X86 hypervisors were built to run a few different operating systems on the same machine. Nowadays they are mostly used to execute several instances of the same OS (Linux), each running a single server application in isolation. Containers […]

Latest Planet Blog Posts

XenServer 7.0 performance improvements part 4: Aggregate I/O throughput improvements

The XenServer team has made a number of significant performance and scalability improvements in the XenServer 7.0 release. This is the fourth in a series of articles that will describe the principal improvements. For the previous ones, see: http://xenserver.org/blog/entry/dundee-tapdisk3-polling.html http://xenserver.org/blog/entry/dundee-networking-multi-queue.html http://xenserver.org/blog/entry/dundee-parallel-vbd-operations.html In this article we return to the theme of I/O throughput. Specifically, we focus on improvements to the total throughput achieved by a number of VMs performing I/O concurrently. Measurements show that XenServer 7.0 enjoys aggregate network throughput over three times faster than XenServer 6.5, and also has an improvement to aggregate storage throughput. What limits aggregate I/O throughput? When a number of VMs are...

Xen Orchestra 5.1

Xen Orchestra 5.1 is here and delivers the latest and the best UI for XenServer.