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List:       gimp-user
Subject:    Re: Gimp performance problem
From:       Frank Haase <fh () qc ! ag-berlin ! mpg ! de>
Date:       1998-05-29 9:08:40
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Hi,
 
 thanx to all who responded ....
 
 seems that  I'm still in trouble. first, no NFS involved whatsoever.
 I tested my U-SCSI disk (DCAS 34330) with iozone - for a 200MB file
 (larger than a typical gimp swap file) : 8 MB/s write; 5.5 MB/s read
 which is pretty good I think.
 Furthermore I increased memory usage to 60 MB (I have 96MB RAM, 50MB swap);
 the swap space is still used only a few %.
 
 I recompiled the gimp with giving the 'configure' the --disable-shared and
 --disable-debug explicitely - but all this helped not much. (these
 options are the defaults anyhow - I guess).
 
 Next I will increase swap space to at least 100 Megs ... but as already
 stated, gimp uses its own swap file.
 
 Let me ask the following:  How long does it take on a comparable system
 (200MHz + SCSI disks) to blur (3 pix rad) the 2nd layer (type 'value')
 of a 30MB picture ?
 I would appreciate any numbers from gimpers out there.
 
 AND I observed that the gcc is given only the options '-g -O2'.
 Is there a way to optimize the code better ?
 
 thanx alot
 
 frank
 
>Karin & Olof wrote:
>
> Hi!
>
> You need to tune some parameters in ~/.gimp/gimprc see GUM appendix ?? for
> exact syntax. What you need is to set a higher memory value Gimp has 10MB
> as default you may need 30MB or (more) so to get full speed out of Gimp.
>
> Secondly do you have your $HOME on a NFS file system? If so you have to tune
> where Gimp has it's swap file default is ~/.gimp/ and set it to a local
> file system e.g /tmp.
>
> Yours Olof
>
 
 --
  Frank Haase                  E-mail: fh@qc.ag-berlin.mpg.de
          ================================================
          | "We Are Bill Gatus of Borg. Resistance is    |
          |  Futile. You will be assimilated."           |
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