Linux-kernel mailing list archive 2000-26,: Re: 2.2.16/17pre6 nanosleep stops my X pointer from moving

# Re: 2.2.16/17pre6 nanosleep stops my X pointer from moving

Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 27 Jun 2000 18:54:08 +0100 (BST)

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> Not to throw cold water on this, but as a real time professional, I
> think timing loops like this should be removed from the kernel. A FAR
> better approach would be to set up an interrupt, even if it is sloppy.

It does use interrupt timing when the timeout is large or when not a hard
RT task. For most other cases we use delay loops its basically a case of
'You shouldnt have bought a PC then'. A lot of devices need short accurate
timeouts and don't have an IRQ for it

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