Re: [Kiobuf-io-devel] Re: 1st glance at kiobuf overhead in kernelaiovs pread vs user aio

[Rajagopal Ananthanarayanan <ananth@sgi.com>]

Ingo Molnar wrote:
> 
> On Fri, 2 Feb 2001, Rajagopal Ananthanarayanan wrote:
> 
> > Do you really have worker threads? In my reading of the patch it seems
> > that the wtd is serviced by keventd. [...]
> 
> i think worker threads (or any 'helper' threads) should be avoided. It can
> be done without any extra process context, and it should be done that way.
> Why all the trouble with async IO requests if requests are going to end up
> in a worker thread's context anyway? (which will be a serializing point,
> otherwise why does it end up there?)
> 

Good point. Can you expand on how you plan to service pending
chunks of work (eg. issuing readpage() on some pages) without
the use of threads?

thanks,


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Rajagopal Ananthanarayanan ("ananth")
Member Technical Staff, SGI.
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