These regressions are a bit frightening but we are still in the process of conducting further tests -- both bare metal and in the public clouds -- to try to figure out more closely what's going on. However, for most users I wouldn't hold off on upgrading to Ubuntu 14.04 LTS since it will ultimately be needed for the longest support within enterprise environments, for desktop users there are plenty of new features, the hardware enablement is much better on 14.04 LTS, the open-source graphics stack is much better, and there's many other non-performance advantages in using Ubuntu 14.04 LTS.
Lately, Ubuntu has been getting a lot of flack from other Linux users for going its own way. For example, Canonical, Ubuntu's parent company, eventually plans on using its own Mir display server instead of the more broadly supported Wayland, and that's annoyed many non-Ubuntu Linux developers.
Canonical eventually wants to create a single operating system that can be installed across desktops, phones, and tablets, with a different interface presented on each device. That convergence hasn't been completed yet, so with 14.04 (codenamed "Trusty Tahr") there will be separate downloads for the mobile editions. "Full convergence means that the same code for operating systems and applications will be running on all types of devices, from phones to tablets to desktops, and even both smaller and larger devices," Ubuntu Engineering VP Rick Spencer told Ars in an e-mail. "Convergence is still a work in progress, and we will continue to move the code to the desktop as it is ready in each release."
My 19-year-old daughter bought herself a new computer without any of my input. She opted to go with an ASUS running Windows 8. The second she booted up her new machine, her first reaction was "This is not good." The Windows 8 tile interface felt like a toy (even using a touch screen). From that point on, her opinion was jaded, and she wound up returning the laptop.
Her previous laptop ran Ubuntu 13.10.
My point is that it only took her a few seconds to form an opinion about Windows 8. That opinion was based completely on how Windows 8 looked, and she couldn't get beyond it.
One glance at Ubuntu 14.04 (Figure A), and her first reaction was "Wow, that looks great!"
Yes, you can install this release on your computers and servers safely in the knowledge that you’ll be getting critical security updates and patches as and when they’re issued. Plus, every so often, a new Hardware Enablement Stack (read: Linux kernel supporting new hardware) will be issued to let you get the most our of your hardware and accessories.
Ubuntu 14.04 seems to be all about refining the Ubuntu desktop. While there are not a lot of amazing new features in this release, there are quite a few very useful and needed tweaks that add up to a much better desktop experience. Canonical’s designers seem to be listening to Ubuntu users again, and they seem willing to make the changes necessary to give the users what they want. That may be the single most important thing about Ubuntu 14.04. It could be an indication of a sea change in Canonical’s attitude toward Ubuntu users.
Ubuntu GNOME 14.04 LTS has been released along with all the other flavors of Ubuntu and it’s based on GNOME 3.10. We prepared a screenshot tour to illustrate some of the features.
The Lubuntu developers don't usually make big changes from one version to another, and this is true for the latest build of the Linux distribution. This aspect is even more important because this is an LTS release and it's supposed to provide a stable and fast experience.
To complement the just-published Ubuntu 12.04.4 LTS, 13.10, and 14.04 LTS desktop benchmarks are results when running a variety of workstation and server oriented benchmarks.
From an Intel Core i7 4960X Ivy Bridge Extreme Edition system were these open-source server/workstation benchmarks being tested on clean installs of 12.04.4 LTS, 13.10, and 14.04 LTS. The stock settings and options were used.