[maemo-developers] [maemo-developers] Re: Optimized software

[From: Olli Salli]

Yeah, especially with such a little cache, context switching should be
kept to the absolute minimum (for example, I think the kernel shouldn't
pre preemptible).

On Thu, 2005-06-16 at 11:33 +0300, ext Antti P Miettinen wrote:
> Jose Manrique Lopez de la Fuente <jsmanrique at gmail.com> writes:
> > * Wherever possible, use multi-threading to push latency into the background.
> 
> Umm.. 770 is uP, so heavy multithreading could just hurt performance
> by introducing unnecessary context switching. I guess moving
> synchronous I/O to a separate thread could be seen as latency
> reduction via multithreading. But in general, if there is heavy
> communication need between threads, use of a single thread and
> non-blocking I/O would save context switches.
> 
> 
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