Vmware better than Xen?
In this blog post we are going to discuss two of the most popular systems of virtualization softwares - Xen & VMware. As you might expect, both companies offer products that have numerous strengths and weakness. And by the end of the article we hope that you are closer to deciding which one is right for you.
Xen
One of the most important things that Xen software offers is extra memory. Extra memory is provided by a tool called VP swap. It is useful for clients that require large memory overhead. However, when swaps are overused, there is a small chance that a server will overload, but a much greater one that essential applications will slow down. Also, Xen does offer a lot of memory, more than many other popular platforms, and this is important because certain applications, like apache, require quite a bit of memory. Still, when used on Xen they may slow everything down.Is then Xen’s extra memory that important? Generally speaking, the more memory or Ram that is available, the less frequently a server will have to access data from the much slower hard disk.The swap space feature makes Xen a top choice platform among customers with great memory needs. The way it works is that whenever a customer starts to run low on memory, dormant processes are pushed aside to free up hard disk storage space.
VMware
VMware is currently the number one provider of virtualization software. Their software is compatible with Mac, Linux and Microsoft Windows. VMware utilize the CPU to run code whenever possible, and when it cannot, the software can actually re-write code to make it compatible. This process is known as binary translation. The translated code can be then stored as extra memory. For this reason, and many more, VMware runs much faster than its competitors/emulators, sometimes more than 80 percent faster than of other virtualization software. As you might expect, when it comes to price, VMware is a bit more expensive than competing software. The price range for their products is between one thousand to nearly six thousand dollars, that is the reason why some cheap vps provider do not offer vmware vps. Despite that VMware opens the list of the world’s most popular virtualization software creators. The popularity may be due to the simple fact that they have been on the market longer than others and so they offer well tested and reliable products. They also do not require any operating system modification to improve performance like many of their top competitors.
What will be the choice?
There are several reasons why WMware is a better product. To begin with, Xen relies on Paravirtualization, which requires operating system modification by a vendor to optimize performance. On the other hand, relying on emulation and binary transition in case of VMware causes any adjustments made by a vendor to be unnecessary. VMware also has several features that help reduce downtime, while Xen has no equivalent technology. Finally, Xen is simply too new to the market to have undergone as thorough testing as VMware.