Linked by Thom Holwerda on Wed 29th Aug 2007 00:28 UTC, submitted by diegocg
Windows Robert Love, a famous Linux kernel hacker, has written a blog entry with his thoughs on the recently posted Vista's network slowdown issue and the explanation given by Mark Russinovich: "Unlike DPCs, however, the Linux parallel does not consume nearly half of your CPU. There is no excusable reason why processing IP packets should so damagingly affect the system. Thus, this absolutely abysmal networking performance should be an issue in and of itself, but the Windows developers decided to focus on a secondary effect."
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RE: Driver Quality
by segedunum on Wed 29th Aug 2007 08:29 UTC in reply to "Driver Quality"
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I suspect that the Linux vs. Windows difference is more in the drivers.

Microsoft tried to do the same thing with NT 4 on a lot of occasions - try to blame third-party drivers.

It would be interesting to find out Mark's network controller, driver, and driver option settings. I believe Windows could do much better than 40% if most of the work was done on the network controller, as it should be.

That's exactly what Vista's network stack is supposed to do - offload to TOE. However, all that it's done is increase the complexity of the networking stack, drivers and the possibilities of things to go wrong.

The Linux guys quite rightly rejected TOE because there was a lot of pain with zero benefit to anyone.

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