Kernel Korner: The Linux Test Project
As Linux plays an increasing role in the enterprise computing space, robustness and reliability requirements have led to more formal testing methods. The LTP is a functional regression testing suite used to help improve Linux reliability. For any kernel development project, running the LTP test suite gives you a method to help ensure your changes don't break the kernel. As you test your kernel modifications, a GCOV-enabled kernel and accompanying LTP tools will help you visualize the effectiveness of your testing and help focus the test team on areas with low coverage.
In addition to test results that show kernel regressions and code coverage gaps, the LTP and coverage analysis potentially provide a method for measuring kernel improvement over time. Consider the simple argument: combined with higher coverage of the kernel code, fewer kernel failures suggest that Linux kernel reliability is improving. A study of how well LTP tracks improvement in Linux is part of our future work.
Finally, we would like to encourage developers to submit their tests to be included in the LTP suite. As always, suggestions and comments are welcome, and should be sent to the mailing lists found on the LTP Web site.
Resources for this article: /article/7809.
Nigel Hinds is a member of the technical staff at IBM T. J. Watson Research Center. He develops testing tools and maintains the kernel coverage system for the Linux Testing Project. His other interests include networking and distributed systems. He can be reached at email@example.com.
|Happy Birthday Linux||Aug 25, 2016|
|ContainerCon Vendors Offer Flexible Solutions for Managing All Your New Micro-VMs||Aug 24, 2016|
|Updates from LinuxCon and ContainerCon, Toronto, August 2016||Aug 23, 2016|
|NVMe over Fabrics Support Coming to the Linux 4.8 Kernel||Aug 22, 2016|
|What I Wish I’d Known When I Was an Embedded Linux Newbie||Aug 18, 2016|
|Pandas||Aug 17, 2016|
- Happy Birthday Linux
- ContainerCon Vendors Offer Flexible Solutions for Managing All Your New Micro-VMs
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- Updates from LinuxCon and ContainerCon, Toronto, August 2016
- What I Wish I’d Known When I Was an Embedded Linux Newbie
- New Version of GParted
- NVMe over Fabrics Support Coming to the Linux 4.8 Kernel
- Tor 0.2.8.6 Is Released
- All about printf
- Blender for Visual Effects
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide