[Click] Random changes

[Cliff Frey]

Thank you for the feedback.  I pushed both of these changes to mainline.

Cliff

On Wed, Jan 5, 2011 at 6:30 AM, Ian Rose <ianrose at eecs.harvard.edu> wrote:

> I agree!  I wrote something (functionally) similar for my own use and
> found it very helpful (but this patch is much cleaner and simpler).
>
>
> On 01/05/2011 04:53 AM, Beyers Cronje wrote:
> > Hi Cliff,
> >
> > The backtrace debugging one is something I would find helpful, so you've
> > definitely got my vote on it.
> >
> > Regards
> >
> > Beyers
> >
> > On Wed, Jan 5, 2011 at 8:52 AM, Cliff Frey<cliff at meraki.com>  wrote:
> >
> >> I have two other change that I'm debating pushing to mainline click.
>  The
> >> backtrace debugging one I am definitely leaning towards porting, and I
> >> could
> >> go either way on the bound-port-transfer change.  Any testing or
> feedback
> >> is
> >> appreciated.
> >>
> >>
> >>
> https://github.com/clifffrey/click/commit/cd08cd8b7a14310d029ab6911c701a6c1b1cdd0b
> >>
> >>
> https://github.com/clifffrey/click/commit/6e5677a840ecd4991417335834c020ffd58099b0
> >>
> >> commit 6e5677a840ecd4991417335834c020ffd58099b0
> >> Author: Cliff Frey<cliff at meraki.com>
> >> Date:   Tue Jan 4 21:51:42 2011
> >>
> >>     Add easy-to-use userlevel backtrace debugging.
> >>
> >>     If you run click with the CLICK_BACKTRACE=1 environment variable, it
> >>     will dump a stack trace on many failures.
> >>
> >>
> >> commit cd08cd8b7a14310d029ab6911c701a6c1b1cdd0b
> >> Author: Cliff Frey<cliff at meraki.com>
> >> Date:   Tue Jan 4 21:55:04 2011
> >>
> >>     add --enable-bound-port-transfer config option
> >>
> >>     This uses gcc extensions to remove one level of indirection from the
> >>     virtual function calls done by push/pull.  I have not actually seen
> a
> >>     measurable performance improvement from this (in my very limited
> >>     testing).  I am curious if anyone else sees any performance win from
> >>     it though.
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> >>
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