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Re: Interrupt, interrupt threads, continuations, and kernel lwps

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To: Bucky Katz <bucky@...>
Cc: <tech-kern@...>
Date: Friday, February 23, 2007 - 5:09 pm

On Thu, Feb 22, 2007 at 10:33:36PM -0800, Bucky Katz wrote:

However you are going to have to execute the cpu cycles at some point,
if the interrupt isn't going to schedule a process then you probably
want to avoid the cost of the scheduling the deferred code.

Remembers the ISR code to drive a stepper motor graph plotter under RSX/11M
(which expected the h/w ISR to just remove the IRQ and leave the rest of
the code to some os work queue...)

	David

-- 
David Laight: david@l8s.co.uk
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Messages in current thread:
Re: Interrupt, interrupt threads, continuations, and kernel ..., Joerg Sonnenberger, (Thu Feb 22, 5:59 pm)
Re: Interrupt, interrupt threads, continuations, and kernel ..., David Laight, (Fri Feb 23, 5:09 pm)
Re: Interrupt, interrupt threads, continuations, and kernel ..., Steven M. Bellovin, (Wed Feb 21, 10:21 pm)
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