Re: Observations on the 4.6rc1 windows package

[Ethan A M. <sf...@us...>]

On Monday, February 27, 2012 02:44:22 am Peter Juhasz wrote:
> 2012/2/27 Bastian M�rkisch <bma...@we...>:
> >>>> I've fired up that virtual machine that produced that 5 minute delay
> >>>> earlier. Some observations on several different builds:
> >>>>
> >>>> gp46rc1-win32-setup.exe from http://gnuplot.info/development/binaries/
> >>>> (25-Feb-2012 07:19): a small (1-2 s) delay on startup.
> >>>>
> >>>> gp450win32-small-setup.zip from
> >>>> http://www.tatsuromatsuoka.com/gnuplot/Eng/winbin/ (2012-02-23, md5sum
> >>>> feebe279501075f8806a04a4029f899c): No delay at all!
> >>>>
> >>>> gp450win32-setup.zip from the same location (2012-02-23, md5sum
> >>>> 728918c93811f1644711c05fecaebd8f): several minutes of delay.
> >>>>
> >>>> I thought that if the delay is related to the initialization of the wxt
> >>>> terminal, then setting the GNUTERM variable to "windows" may alleviate
> >>>> the problem, but it didn't.
> >>>>
> >>>> P�ter Juh�sz
> >>>>
> >>> One of the possibility is that the version of wxwidgets. �Now I am using
> >>> wxwidgets-2.9.3.
> >>> To be clear I have to rebuiild wxwidigts 2.8 and re-provide the binary.
> >>> Now my condition is not so good, I cannot commit further at the moment.
> >>>
> >>> Sorry for inconvenience.
> >>>
> >>> Tatsuro
> >>>
> >>
> >> Hello
> >>
> >> I have downgraded wxWidgets from version 2.9.3 to 2.8.12 and built the
> >> recent cvs source.
> >> http://www.tatsuromatsuoka.com/gnuplot/Eng/winbin/
> >> gp450win32-setup.zip
> >>
> >> Please test this binary shows slow startup or not.
> >>
> >> Regards
> >>
> >> Tatsuro
> >>
> >
> > Thanks for providing a new build so quickly! On my Vista machine your (old)
> > build with wxWidgets 2.9.3 takes ~6s to start up, whereas the build with
> > wxWidgets 2.8.12 takes only 0.7s. This is exactly the same time it takes for
> > my own build to start up (wxWidgets 2.8.11).
> > For the moment, I would thus suggest to stay with 2.8 for a 4.6 release
> > build.
> >
> > �Bastian
> 
> I confirm the speedup with this new build: on this pathological Vista
> virtual machine I have the delay on startup has shrunk down to 8
> seconds. On a real XP box the delay is less than 1 s.
> 
> Perhaps it would be illuminating to look at the changelogs of
> wxWidgets to see what could possibly cause this effect, and also test
> whether it appears on non-Windows platforms.
> 
> P�ter Juh�sz

This tracker:
  http://openeuphoria.org/forum/117422.wc
suggests that it can take 15 seconds to load the 2.9 wxWidgets *.dll if it is
built as a monolithic library. Splitting it into smaller pieces may help.

And this one:
  http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43601
gives work-arounds for horrible problems when compiling wxWidgets with certain 
versions of Mingw and gcc

I gather from the wxWiki pages that the package can be built in either
"debug" or "release" mode.  The latter can be much faster.  Several debug levels
are possible.   Apparently the defaults changed between 2.8 and 2.9, so maybe
this is part of the problem? 


	Ethan