That's why I love Linux...
Posted Dec 15, 2005 3:19 UTC (Thu) by sbishop
Parent article: SMP alternatives
The difference between this idea and the way Windows works is incredible. Self-modifying/optimizing code versus "Another processor? Do you have a license for that?" Wow.
I've realized recently that Linux often benefits technically from its license. This idea is an example of that.
I've seen another example at work, where I maintain a Linux USB driver used internally. It's based off the example USB driver that's included in the Linux kernel code, and it's about 600 lines long. The corresponding example Windows driver that comes with Microsoft's DDK (Driver Development Kit) consists of multiple files and around 8,000 lines total. Why the difference? Because the Linux developers aren't tied to an ABI, or API, for that matter. They can adjust the interface between the kernel and drivers (because they have the source for those too) until they get it right. The Windows driver contains much that really ought to be built-in. A +10x difference in code size--that's huge.
And guess which is more than twice as fast than the other? :)
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