July 25, 2008
== Quote from superdan (super@dan.org)'s article
> Leandro Lucarella Wrote:
> > Sean Kelly, el 24 de julio a las 23:09 me escribiste:
> > > Lionello Lunesu wrote:
> > > >"Walter Bright" <newshound1@digitalmars.com> wrote in message news:g6b1ae$up4$1@digitalmars.com...
> > > >>http://bartoszmilewski.wordpress.com/2008/07/24/thin-locks-in-d/
> > > >>
> > > >>and of course on reddit:
> > > >>
> > > >>http://www.reddit.com/comments/6tbzc/thin_locks_in_d/
> > > >I remember reading somewhere that critical-sections on Windows do just that.
> > >
> > > They pretty much do.  And futexes are largely the same thing in Linux.
> >
> > So, why D must reinvent the wheel, duplicating a well known technique done in most modern OS? This will only add overhead to D.
> >
> > Please, at least make it conditional only to OSs that don't provide this optimization by themselves.
> there is no reinvention. the man quotes his sources. at most there is
reimplementation. and that's unavoidable as far as i understand. thin locks must be integrated with the object model so they place that word right there and do shit with it.

Yup.  I think the point is trying to avoid a cache miss from having the monitor in a separate memory block.


Sean
July 25, 2008
== Quote from Robert Fraser (fraserofthenight@gmail.com)'s article
> Walter Bright Wrote:
> > superdan wrote:
> > > Walter Bright Wrote:
> > >
> > >> http://bartoszmilewski.wordpress.com/2008/07/24/thin-locks-in-d/
> > >>
> > >> and of course on reddit:
> > >>
> > >> http://www.reddit.com/comments/6tbzc/thin_locks_in_d/
> > >
> > > very cool stuff that's gonna cross the t in threads for d. i'm so very glad bartosz is on team. would he join the newsgroup, or is he a mimosa as well?
> >
> > We are very lucky to have Bartosz working with us. He's an expert on multithreaded programming, and even better, he spends a lot of time researching the latest in what others are doing so that D will build on best practices rather than reinvent mistakes.
> So, the STM stuff Bartoz was talking about at the conference... is that still slated for inclusion?

From what I hear, yes.


Sean
July 25, 2008
Walter Bright Wrote:

> http://bartoszmilewski.wordpress.com/2008/07/24/thin-locks-in-d/
> 
> and of course on reddit:
> 
> http://www.reddit.com/comments/6tbzc/thin_locks_in_d/

That's really nice. Have you run some benchmarks on this? Also, are there any plans to implement this on Tango too?

Thanks.


July 26, 2008
== Quote from lurker1024 (lurker1024@mailinator.com)'s article
> Walter Bright Wrote:
> > http://bartoszmilewski.wordpress.com/2008/07/24/thin-locks-in-d/
> >
> > and of course on reddit:
> >
> > http://www.reddit.com/comments/6tbzc/thin_locks_in_d/
> That's really nice. Have you run some benchmarks on this? Also, are there any
plans to implement this on Tango too?

Not sure yet.


Sean
July 26, 2008
On Fri, 25 Jul 2008 15:06:22 -0300, Leandro Lucarella wrote:

> superdan, el 25 de julio a las 13:17 me escribiste:
>> Leandro Lucarella Wrote:
>> 
>> > Sean Kelly, el 24 de julio a las 23:09 me escribiste:
>> > > Lionello Lunesu wrote:
>> > > >"Walter Bright" <newshound1@digitalmars.com> wrote in message news:g6b1ae$up4$1@digitalmars.com...
>> > > >>http://bartoszmilewski.wordpress.com/2008/07/24/thin-locks-in-d/
>> > > >>
>> > > >>and of course on reddit:
>> > > >>
>> > > >>http://www.reddit.com/comments/6tbzc/thin_locks_in_d/
>> > > >I remember reading somewhere that critical-sections on Windows do just that.
>> > > 
>> > > They pretty much do.  And futexes are largely the same thing in Linux.
>> > 
>> > So, why D must reinvent the wheel, duplicating a well known technique done in most modern OS? This will only add overhead to D.
>> > 
>> > Please, at least make it conditional only to OSs that don't provide this optimization by themselves.
>> 
>> there is no reinvention. the man quotes his sources. at most there is reimplementation. and that's unavoidable as far as i understand. thin locks must be integrated with the object model so they place that word right there and do shit with it.
> 
> Then please don't add this at all! It's a little lame add overhead to all modern OS just to be a babysitter of poor ones.

I'm pretty sure that just because your OS handles multi-threading this way that your program won't just automatically inherit it. When you right your program, you have to handle all the synchronous issues yourself, otherwise all this multi-threading business would be a snap.
July 28, 2008
Jesse Phillips, el 26 de julio a las 17:27 me escribiste:
> On Fri, 25 Jul 2008 15:06:22 -0300, Leandro Lucarella wrote:
> 
> > superdan, el 25 de julio a las 13:17 me escribiste:
> >> Leandro Lucarella Wrote:
> >> 
> >> > Sean Kelly, el 24 de julio a las 23:09 me escribiste:
> >> > > Lionello Lunesu wrote:
> >> > > >"Walter Bright" <newshound1@digitalmars.com> wrote in message news:g6b1ae$up4$1@digitalmars.com...
> >> > > >>http://bartoszmilewski.wordpress.com/2008/07/24/thin-locks-in-d/
> >> > > >>
> >> > > >>and of course on reddit:
> >> > > >>
> >> > > >>http://www.reddit.com/comments/6tbzc/thin_locks_in_d/
> >> > > >I remember reading somewhere that critical-sections on Windows do just that.
> >> > > 
> >> > > They pretty much do.  And futexes are largely the same thing in Linux.
> >> > 
> >> > So, why D must reinvent the wheel, duplicating a well known technique done in most modern OS? This will only add overhead to D.
> >> > 
> >> > Please, at least make it conditional only to OSs that don't provide this optimization by themselves.
> >> 
> >> there is no reinvention. the man quotes his sources. at most there is reimplementation. and that's unavoidable as far as i understand. thin locks must be integrated with the object model so they place that word right there and do shit with it.
> > 
> > Then please don't add this at all! It's a little lame add overhead to all modern OS just to be a babysitter of poor ones.
> 
> I'm pretty sure that just because your OS handles multi-threading this way that your program won't just automatically inherit it. When you right your program, you have to handle all the synchronous issues yourself, otherwise all this multi-threading business would be a snap.

Parse error =)

-- 
Leandro Lucarella (luca) | Blog colectivo: http://www.mazziblog.com.ar/blog/
----------------------------------------------------------------------------
GPG Key: 5F5A8D05 (F8CD F9A7 BF00 5431 4145  104C 949E BFB6 5F5A 8D05)
----------------------------------------------------------------------------
El discman vuelve locos a los controles, te lleva a cualquier lugar.
Aj├║stense pronto los cinturones, nos vamos a estrellar.
Evidentemente, no escuchaste el speech,
que dio la azafata, antes de despegar.
Next ›   Last »
1 2 3
Top | Discussion index | About this forum | D home