AMD64 Opteron: First Look
These processors are wicked fast, and it's still early in the system characterization cycle. For example, new applications need to be compiled for a 64-bit operating system to attain the full measure of the available performance. For now, some early industry-standard benchmarks available at press time are listed in Tables 1 and 2. These are for a dual-processor SMP Opteron 244 with PC2700 memory configuration, for 32-bit applications. In Table 1, the benchmarks infer relative integer and floating-point processor performance. The benchmark in Table 2 is designed to evaluate the performance of a server's ability to run Java applications.
Your intended application determines the best benchmark. Programs can appear similar but have unique peculiarities that are stressed differently under system loads.
The Opteron is breakthrough 64-bit processor technology, one that seems destined to provide high performance and cost savings for cleanly migrating 32-bit architecture programs into a 64-bit application space. In the near future, the upside for 64-bit “long mode” applications running on Linux seems high indeed, because eight-way SMP processors are coming. Linux Journal will be covering this emergent technology with additional articles in the future.
Michael Baxter is technical editor of Linux Journal.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
Free to Linux Journal readers.Register Now!
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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