Re: Linux's implementation of poll() not scalable?

From: Dan Kegel (dank@alumni.caltech.edu)
Date: Wed Nov 01 2000 - 11:09:16 EST


Mike Jagdis wrote:
> This patch firstly extends the wait queue mechanism
> to allow an arbitrary action to be performed. Then I rewrote
> the select/poll implementation to use event queueing to avoid
> rescanning descriptors that had not changed - and restructured
> the loops to be rather more efficient. This approach doesn't
> need any changes to driver poll routines, it doesn't need
> backwards mapping struct files. ...
> Performance graphs and the lmbench derived test programs I
> used are at http://www.purplet.demon.co.uk/linux/select/ ...
> Oh, and I updated this patch for 2.4.0-test9.

I can't wait to run my benchmark on it... hope I can get to it soon.
BTW, can you update that web page to also point to your patch?
- Dan
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