[magick-users] Question about performance of ImageMagick.

[Anthony Thyssen]

ggaliens at nycap.rr.com on  wrote...
| Question about performance of ImageMagick.
| 
| Can I get and statistical data, examples of performance in a nice document somewhere ??? 
| 
| I'm doing very large say 15K pixels by 6K pixels bitmaps  15,000 wide x 6,000 tall.
| Taking and image like this ... resizing, appending to another similar. Adding a large banner strip. Rotating by 90 degrees. 
| 
| I'm getting something like maybe 5 minutes per operation in my batch file that might have say 5 - 7 operations to do on files of this size and slightly smaller. 
| 
| I need some hints on how to improve performance. Yeah, I was probably hitting DISK RAM rather than physical ram a lot. Perhaps I need a good tool for snooping to see what's going on in that area. I did see my physical ram getting very full. 
| 
| 
| It did look like I was I/O bound as my CPU was low (5-7%) most of the time during these operations ... so that seems pretty bad. 
| 
| Most of the Operations were done by tool "CONVERT".
| 

See IM examples, API and Scripting,  Speedups
  http://www.imagemagick.org/Usage/api/#speed

The biggest gain for you is probably
  * more memory 
  * using a IM Q8 version.


  Anthony Thyssen ( System Programmer )    <A.Thyssen at griffith.edu.au>
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  Losing one glove is certainly painful, but nothing compared to the pain,
  of losing one, throwing away the other, and finding the first one again.
                                                             -- Piet Hein
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     Anthony's Home is his Castle     http://www.cit.gu.edu.au/~anthony/