Re: gm convert bla.jpg bla.pdf multiplies SEVENFOLD the file's size !

On Sun, 9 Dec 2018, Mehdi wrote:

> The size is still a big problem, with "preserve-settings", the size is
> between four and fivefold the sum of pictures files. Its number limit is
> now between 260 and 280 files, or in term of total size, 111 and 127 Mo.

Please see the output of 'gm convert -list resources'.  This is the 
first part of what I see on the system I am using at the moment:

% gm convert -list resources
Resource Limits (Q16, 64 bits/pixel, 64bit address)
----------------------------------------------------
     Disk:  Unlimited (MAGICK_LIMIT_DISK)
    Files:        256 (MAGICK_LIMIT_FILES)
      Map:    15.6GiB (MAGICK_LIMIT_MAP)
   Memory:     7.8GiB (MAGICK_LIMIT_MEMORY)
   Pixels:  Unlimited (MAGICK_LIMIT_PIXELS)
  Threads:          4 (OMP_NUM_THREADS)
    Width:   256.0MiP (MAGICK_LIMIT_WIDTH)
   Height:   256.0MiP (MAGICK_LIMIT_HEIGHT

Notice that 'files' is limited to 256 which is not terribly far from 
the problematic range of 260 and 280 files.  Perhaps there is a bug 
related to this.

Please try adding

   -limit files 1023

or set MAGICK_LIMIT_FILES in the environment like

    export MAGICK_LIMIT_FILES=1023

I think that the Linux default allows 1024 file descriptors per 
program.

It would be useful to know if this changes behavior.

Bob
-- 
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
Public Key,     http://www.simplesystems.org/users/bfriesen/public-key.txt