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osOpinion: QNX RTOS - The Right Way of Doing Things

Sep 08, 2000, 07:21 (17 Talkback[s])
(Other stories by Vlad Sedach)

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"While I¹ve heard of QNX and their floppy-disk demo over a year ago, and had read plenty of news regarding their RTOS afterwards, it is only yesterday that I attempted to use the demo. The results surprised me."

"Normally, I am an active Open Source supporter, and prefer to think of Linux/GNU as the ultimate OS for speed and portability. I decided to download the QNX demo after I read this BeNews article (Exclusive Preview - QNX RtP, just to see how "real-time" it really is. For my test subject I chose the slowest machine I had available - an antiquated NEC Powermate 450es (486 DX 2-66, 12 megs of ram, 512k Cirrus Logic video controller, and an NE2000 network card). Linux (with an optimized kernel, mind you) with X and Blackbox (one of the most minimal window managers available) chokes on this machine, constantly swapping."

"To my amazement, the QNX OS took under 30 seconds to load from the floppy. What was an even bigger surprise was the hardware configuration - none, the OS had taken care of everything. The most shocking realization came when I saw how smoothly the windowing system, the Photon microGUI, was. Even when the web browser was loading up big pages, the system remained as responsive as ever - an amazing feat considering how old the machine, and how potentially feature-full the OS could be. Networking performance was also optimal - downloads looked like they went as fast as the antiquated network card could handle them."

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