code review 54570046: cmd/gc: lower OCAP/OLEN for chans into runtime calls

cmd/gc: lower OCAP/OLEN for chans into runtime calls
Allows more flexibility in representation of chans.
In preparation for larger chan rewrite.
I doubt it can affect performance of sensible Go programs.

[dvyukov, 2014-01-27 20:23:15]

Hello golang-codereviews@googlegroups.com,

I'd like you to review this change to
https://dvyukov%40google.com@code.google.com/p/go/

[oleku, 2014-01-27 22:34:00]

Hi, What are the issues with current chan implementation and what are we trying
to achieve with the new chan rewrite?  advantage maybe ? 

If you have any document on the detail it would be nice ... thanks 

[dvyukov, 2014-01-28 18:50:01]

On Tue, Jan 28, 2014 at 2:33 AM,  <oleku.konko@gmail.com> wrote:
>
> Hi, What are the issues with current chan implementation and what are we
trying to achieve with the new chan rewrite?  advantage maybe ?
>
> If you have any document on the detail it would be nice ... thanks


Good question. I need to write something. Yikes!

[oleku, 2014-01-28 19:50:58]

Cool .. can't wait to see what you would come up with :) 

On Tuesday, January 28, 2014 7:49:40 PM UTC+1, Dmitry Vyukov wrote:
> On Tue, Jan 28, 2014 at 2:33 AM,  <oleku.konko@gmail.com> wrote:
> 
> >
> 
> > Hi, What are the issues with current chan implementation and what are we
trying to achieve with the new chan rewrite?  advantage maybe ?
> 
> >
> 
> > If you have any document on the detail it would be nice ... thanks
> 
> 
> 
> 
> 
> Good question. I need to write something. Yikes!

[dvyukov, 2014-02-03 15:42:52]

Here we go:
https://docs.google.com/a/google.com/document/d/1yIAYmbvL3JxOKOjuCyon7JhW4cSv...


On Tue, Jan 28, 2014 at 11:50 PM,  <oleku.konko@gmail.com> wrote:
> Cool .. can't wait to see what you would come up with :)
>
> On Tuesday, January 28, 2014 7:49:40 PM UTC+1, Dmitry Vyukov wrote:
>> On Tue, Jan 28, 2014 at 2:33 AM,  <oleku.konko@gmail.com> wrote:
>>
>> >
>>
>> > Hi, What are the issues with current chan implementation and what are we
trying to achieve with the new chan rewrite?  advantage maybe ?
>>
>> >
>>
>> > If you have any document on the detail it would be nice ... thanks
>>
>>
>>
>>
>>
>> Good question. I need to write something. Yikes!
>
> --
> You received this message because you are subscribed to the Google Groups
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> To unsubscribe from this group and stop receiving emails from it, send an
email to golang-codereviews+unsubscribe@googlegroups.com.
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[dvyukov, 2014-02-03 15:43:38]

On Mon, Feb 3, 2014 at 7:42 PM, Dmitry Vyukov <dvyukov@google.com> wrote:
> Here we go:
>
https://docs.google.com/a/google.com/document/d/1yIAYmbvL3JxOKOjuCyon7JhW4cSv...

This link has higher chances of working:
https://docs.google.com/document/d/1yIAYmbvL3JxOKOjuCyon7JhW4cSv1wy5hC0ApeGMV...


> On Tue, Jan 28, 2014 at 11:50 PM,  <oleku.konko@gmail.com> wrote:
>> Cool .. can't wait to see what you would come up with :)
>>
>> On Tuesday, January 28, 2014 7:49:40 PM UTC+1, Dmitry Vyukov wrote:
>>> On Tue, Jan 28, 2014 at 2:33 AM,  <oleku.konko@gmail.com> wrote:
>>>
>>> >
>>>
>>> > Hi, What are the issues with current chan implementation and what are we
trying to achieve with the new chan rewrite?  advantage maybe ?
>>>
>>> >
>>>
>>> > If you have any document on the detail it would be nice ... thanks
>>>
>>>
>>>
>>>
>>>
>>> Good question. I need to write something. Yikes!
>>
>> --
>> You received this message because you are subscribed to the Google Groups
"golang-codereviews" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
email to golang-codereviews+unsubscribe@googlegroups.com.
>> For more options, visit https://groups.google.com/groups/opt_out.

[oleku, 2014-02-03 16:51:11]

Impressively splendid , this numbers (https://codereview.appspot.com/12544043/)
are scary .... 

Nice One .. Well done :) 


On Monday, February 3, 2014 4:43:17 PM UTC+1, Dmitry Vyukov wrote:
> On Mon, Feb 3, 2014 at 7:42 PM, Dmitry Vyukov <dvyukov@google.com> wrote:
> 
> > Here we go:
> 
> >
https://docs.google.com/a/google.com/document/d/1yIAYmbvL3JxOKOjuCyon7JhW4cSv...
> 
> 
> 
> This link has higher chances of working:
> 
>
https://docs.google.com/document/d/1yIAYmbvL3JxOKOjuCyon7JhW4cSv1wy5hC0ApeGMV...
> 
> 
> 
> 
> 
> > On Tue, Jan 28, 2014 at 11:50 PM,  <oleku.konko@gmail.com> wrote:
> 
> >> Cool .. can't wait to see what you would come up with :)
> 
> >>
> 
> >> On Tuesday, January 28, 2014 7:49:40 PM UTC+1, Dmitry Vyukov wrote:
> 
> >>> On Tue, Jan 28, 2014 at 2:33 AM,  <oleku.konko@gmail.com> wrote:
> 
> >>>
> 
> >>> >
> 
> >>>
> 
> >>> > Hi, What are the issues with current chan implementation and what are we
trying to achieve with the new chan rewrite?  advantage maybe ?
> 
> >>>
> 
> >>> >
> 
> >>>
> 
> >>> > If you have any document on the detail it would be nice ... thanks
> 
> >>>
> 
> >>>
> 
> >>>
> 
> >>>
> 
> >>>
> 
> >>> Good question. I need to write something. Yikes!
> 
> >>
> 
> >> --
> 
> >> You received this message because you are subscribed to the Google Groups
"golang-codereviews" group.
> 
> >> To unsubscribe from this group and stop receiving emails from it, send an
email to golang-codereviews+unsubscribe@googlegroups.com.
> 
> >> For more options, visit https://groups.google.com/groups/opt_out.

[gobot, 2014-02-12 18:40:57]

R=rsc@golang.org (assigned by dvyukov@google.com)

[rsc, 2014-02-12 19:02:22]

No.
The more complex chan rewrite is not scheduled for Go 1.3, so I do not see any
reason to change this now.

[oleku, 2014-02-13 11:07:17]

Can please you explain better what you mean by "The more complex chan rewrite is
not scheduled for Go 1.3"  ?


On Wednesday, February 12, 2014 8:02:22 PM UTC+1, russ cox wrote:

> No.
> 
> The more complex chan rewrite is not scheduled for Go 1.3, so I do not
> 
> see any reason to change this now.
> 
> 
> 
> 
> 
> https://codereview.appspot.com/54570046/

[iant, 2014-02-13 17:09:49]

On Thu, Feb 13, 2014 at 3:07 AM,  <oleku.konko@gmail.com> wrote:
> Can please you explain better what you mean by "The more complex chan rewrite
is not scheduled for Go 1.3"  ?

https://groups.google.com/d/msg/golang-dev/5zcEng3yvaU/wfosgbaKuEgJ

Ian

[rsc, 2014-03-05 19:17:39]

R=close

please reopen after go 1.3 is out if it is still relevant