Messages in this thread | | | Date | Sun, 12 Mar 2000 19:07:36 -0800 (PST) | From | Linus Torvalds <> | Subject | Re: new IRQ scalability changes in 2.3.48 |
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On Sun, 12 Mar 2000 yodaiken@fsmlabs.com wrote: > > Previously, _any_ interrupt was let to progress. That is, hardware > priorities were ignored by Linux.
No. This actually reverts to someof the original behaviour, because REALLY previously we had exactly the old behaviour for the so-called fast interrupts.
In between we had the "no priorities" version,
> It's amazing how stubbornly hardware folks refuse to consider OS in their > designs.
Actually, I think it's more that they _think_ they consider the OS in their designs.
A lot of operating systems are designed around priority levels because that is how a lot of early hardware worked.. And because a lot of OS's have that notion, the hardware tends to be designed for it. A bad circle.
Linus
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