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Re: Building Octave on cygwin with gcc3.3.3
From: |
Paul Thomas |
Subject: |
Re: Building Octave on cygwin with gcc3.3.3 |
Date: |
Thu, 20 Jan 2005 06:27:27 +0100 |
I'm pretty sure the problem is with SJLJ exception handling being much
slower than the method used with Dwarf2. The reason the problem shows
up with new/delete is because new throws an exception if it fails. So
That's correct
If SJLJ exception handling is used by MinGW, then I don't think you'll
see an improvement.
That is what is being reported by those stalwarts who are trying MinGW.
For what it is worth, I notice that the time penalty for new/delete goes
away with the builds of gcc-4.0 that I am using for gfortran development.
There is a small problem with libgfortran that I have on my list of todo's,
in order that octave can be built. I'll put that next on the list. In the
mean time, I will build a Cygwin gcc-3.4 this weekend and build octave with
that. I am rather sure that the --version information that gcc is a Mingw
special is a "bad stuff" indicator.
Paul T
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- Gcc 3.3, windows, and mingw, Frank Palazzolo, 2005/01/17
- Building Octave on cygwin with gcc3.3.3, Frank Palazzolo, 2005/01/18
- Re: Building Octave on cygwin with gcc3.3.3, Paul Laub, 2005/01/19
- RE: Building Octave on cygwin with gcc3.3.3, Frank Palazzolo, 2005/01/19
- RE: Building Octave on cygwin with gcc3.3.3, John W. Eaton, 2005/01/19
- RE: Building Octave on cygwin with gcc3.3.3, Frank Palazzolo, 2005/01/19
- RE: Building Octave on cygwin with gcc3.3.3, John W. Eaton, 2005/01/19
- Re: Building Octave on cygwin with gcc3.3.3,
Paul Thomas <=
- Re: Building Octave on cygwin with gcc3.4.3, Paul Thomas, 2005/01/24
- Re: Building Octave on cygwin with gcc3.4.3, Dmitri A. Sergatskov, 2005/01/24
- Re: Building Octave on cygwin with gcc3.4.3, Paul Thomas, 2005/01/24
- PS: Building Octave on cygwin with gcc3.3.3, Paul Thomas, 2005/01/20
- RE: Building Octave on cygwin with gcc3.3.3, Frank Palazzolo, 2005/01/20
- RE: Building Octave on cygwin with gcc3.3.3, John W. Eaton, 2005/01/20
- PS: Building Octave on cygwin with gcc3.3.3, John W. Eaton, 2005/01/20
- Re: Building Octave on cygwin with gcc3.3.3, Paul Thomas, 2005/01/23