Performance of fread

[Sascha Berkenkamp]

Hi,

I would like to know some things about the speed of the fread function.
In my scenary I'll get about  1000 pictures of one CCD camera. I have to 
know the data from one pixel about the 1000 pictures. So in my first 
step I sort the pictures new. So at the result I'll get all informations 
about the pixel in one file (in my case the pixels-informations of one 
column of the CCD array in one file).

The second step is to open all the files and read the pixels in order to 
do some FFT and filtering. I have to read about 800 files (each as about 
578 information of the pixels). In the end I do about 400.000 ffts.
But I think that the fread (and the speed of the disk) function is the 
least link.
Is there any chance to make the fread faster, or is it better to do all 
the task in C?

Sascha



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