Re: the bgl and other tasks (was: Re: Idle question about multi-core processors)

["Kevin L. Kane" <kevin.kane@xxxxxxxxx>]

I notice Xen is on the list of possibles for the hack-a-thon.  That
would most definitely rock if Xen were to get done.

-Kevink

On 12/1/06, Simon 'corecode' Schubert <corecode@fs.ei.tum.de> wrote:
> Matthew Dillon wrote:
> > :Speaking of that,
> > :How long do you think it will be until the BGL can be removed from the
> > :largest subsystems and we will see the real benefit on SMP systems in
> > :DragonFly?
> > :-Jonas
> >
> >     There really isn't much left.  It would take one experienced person maybe
> >     a week to run through all the code paths and deal with the few remaining
> >     issues, with the provisio that the packet filter would still probably
> >     need either the BGL or its own lock.
> >
> >     Do people think I should work on that for the January release instead of
> >     the virtual kernel support?  I really only have time to do one or the
> >     other.
>
> No, better keep going on the vkernel.  A couple of us developers will hang out at the 23rd chaos communication congress in berlin [1], which is taking place from december 27th-30th.  One of our ideas was to do a little hack-a-thon.
>
> We compiled a way too big list in the wiki [2].  The most appealing feature we want to tackle is 1:1 threading, and I think this is a fair goal to achieve.  maybe we will also be able to push the bgl a little further.
>
> I guess pushing the BGL is not so complicated for an average[tm] developer than developing the vkernel architecture, which is basically only known to you.
>
> Maybe some other interested people will want to join us there and hack and drink together one or two beverages or lines of code!
>
> cheers
>   simon
>
> [1] http://events.ccc.de/congress/2006/
> [2] http://wiki.dragonflybsd.org/index.cgi/HackAthonTopics
>
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--
Kevin L. Kane
kevin.kane at gmail.com