On Thu, 10 Jan 2002, Alan Cox wrote:
> The fun below 1mS comes from
>
> 1. APM bios calls where the bios decides to take >1mS to have
> a chat with your batteries
> 2. Video cards pulling borderline legal PCI tricks to get
> better benchmarketing by stalling the entire bus
Don't forget the embedded space, where the hardware vendor can ensure
that their hardware is well-behaved. Even on a PC, it is possible for
someone who cares about realtime to spec a reasonable system.
On good hardware, we can easily do much better than 1ms latency with a
preemptible kernel and a spinlock cleanup. I don't think the
limitations of some PC hardware should limit our goals for Linux.
Nigel Gamble nigel@nrg.org
Mountain View, CA, USA. http://www.nrg.org/
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This archive was generated by hypermail 2b29 : Tue Jan 15 2002 - 21:00:33 EST