Laptops for Linux!
ASL includes the Accelerated X-Server, while LinuxLaptops runs the standard XFree86. According to Xi Graphics, there is usually a 40% to 60% performance improvement gained from running the commercial servers, as well as support for many more cards. I have not noticed any visible advantage; GNOME/Enlightenment is slow on both laptops. Nevertheless, if you do graphics-intensive work, there may be a benefit here. Both laptops use the ATI 3D Pro LT card, so the graphics performance is similar. Neither in X nor in console mode did I notice the lagging, slow updates associated with LCD screens of the past. Graphics on both are superb.
Well stocked, fully loaded
KDE or GNOME
Faster X server
Complete, functional laptop for Linux
Clear, flicker-free 14.1" LCD monitor
Console mode is ghosty
Disk access a bit slow
Has some unnecessary software
The window manager situation is a bit different. The AS-LT300 offers a choice between KDE and GNOME, and the Attache uses GNOME/Enlightenment. While the Attache's devotion to GNOME/Enlightenment (which is well configured) keeps good faith with the open-software movement, the window manager and desktop environment are a tad too resource-intensive for a mid-range laptop, not to mention being unstable and slightly buggy.
As is typical of Linux, audio support is a mess. The Attache awaits the release of the free sound driver, so other than beeps (which you can mercifully turn off with a volume control), you don't have audio support. The AS-LT300 has OSS audio support, which means you can play CDs, but the audio devices are not set up properly so you'll miss out on mpegs and the like (I expect ASL has fixed by now). Still, the microphone appears to be working, because at full volume, the machine starts generating horrible feedback when I type. What to do about MIDI? Might as well get a hardware sequencer.
Network support on both laptops is fine and simple. All you have to do is plug an Ethernet/Modem card into the PCMCIA slot, edit the network files (five minutes tops), reboot, and your system will be completely on-line. Networking is transparent and I even swapped the network card in and out of the computers while running and without any disastrous effects. The network card gets very hot, though; I worry it will melt. It would be preferable to have Ethernet/modem built into the laptop instead of using a PCMCIA card, since it looks less graceful to have this gizmo sticking out of the laptop's side.
Benchmarks are good general indicators of system performance, but they're often misleading and not entirely relevant. It is true these laptops do not compare well performance-wise to desktop machines or servers, especially in terms of disk access, but then, these laptops are not servers and servers are not particularly portable. Laptops are generally one- or two-user machines and will not be called on to do anything resource-intensive. As for disk access, you don't need a super fast drive if you won't have several dozen users reading and writing all at once, and you don't need too many megahertz or that much RAM to run vi or Emacs. Multimedia would be the one area for which a single user would need supercomputing power, but then multimedia support on Linux is not outstanding. So, Table 2 shows the Bonnie and BYTEmark results. The AS-LT300 shipped with a faster processor (and higher price tag) so its processor results are slightly better, while LinuxLaptops has spent much effort tuning for hard-drive performance, hence the better results here. I set both laptops to “Suspend to RAM” and “Large Filesystem”, and ran the benchmarks several times for best results. Bonnie's results fell into a broad range, due partially to variance in access speed depending on the location of the data on the disk. Laptop drives tend to be single speed, so the farther in you go, the slower your access speed.
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.
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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