fscanf performance >10x slower in 2.1.69 compared to 2.1.50 on Windows

This comparison was made using the octave-forge pre-built binaries compared 
to a recent local build of 2.1.69 using the latest (gcc 3.3.3) cygwin 
package. This isn't a benchmark, but rather a real problem.

I open a file that contains a large matrix (about 500 x 1000 elements), and 
read it with

   V = fscanf(fd, "%f", [1000,500]);

Under 2.1.50 this takes a bit less than 2 seconds. Under 2.1.69, it takes 
about 23 seconds on my system. I am running Windows XP with 3.2GHz Intel 
processor 2GB ram.  For configuration, I used

./configure --enable-shared --disable-static

Bill Sears




-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------