dynamic context transitions

[Luke Kenneth Casson Leighton]

On Wed, Dec 01, 2004 at 05:12:24PM -0600, Christopher R. Hertel wrote:
> On Sun, Nov 14, 2004 at 09:54:28PM +0000, Luke Kenneth Casson Leighton wrote:
> > On Sun, Nov 14, 2004 at 05:26:55PM +0100, Simo Sorce wrote:
> :
> : 
> > > In samba4 we have process, single AND thread model and a operations are
> > > async so this will not be a problem anymore.
> > 
> > fantastic
> > 
> > > Btw, from tests seem that in threaded model performance suck anyway :)
> >  
> >  i like that - threads are supposed to be All The Rage.
> > 
> >  ... what do you think is going wrong?
> 
> I've been asking about this in different places.  I've heard theories, 
> mostly.  This is happening in Linux (dunno if it's been tested elsewhere) 
> and one theory is that the forked process speeds are good because Linux 
> basically does a really good job with those.  Meanwhile, thread speed is 
> bad because the multiple threads are all within a single process and the 
> single process gets only it's own share of processor time.
 
 how about forking on socket connect and then running N threads in each
 forked process, where N equals negotiated maxmux?

 that'd give the best of both worlds - or is that already being done?

 l.