The fix included with Gimp 2.0.5 ("work around file-descriptor leak in
Pango (#143542, #148997)") appears to have resolved most of the memory
leak issues I was running into with my Gimp Perl scripts and the
gimp_text_fontname function (thanks to those involved!). I do still
notice a memory increase however, based on running test scripts and
observing the results with top.
The increase is sporadic and difficult to pinpoint, however I am able to
consistently increase the memory in use by the Gimp instance by the
following actions with a test script:
1) Start up a new instance of Gimp with the perl server running.
2) Execute the following from a perl script:
Gimp::init;
Gimp::set_trace(TRACE_ALL);
my $img = gimp_image_new(300, 200, 0);
$img->gimp_image_undo_disable;
my $layer = gimp_layer_new($img, 300,200,RGB, "Layer 1", 100,
NORMAL_MODE);
gimp_image_add_layer($img, $layer, -1);
$layer = gimp_layer_new($img, 300,200,RGB, "Layer 2", 100, NORMAL_MODE);
gimp_image_add_layer($img, $layer, -1);
$layer = gimp_layer_new($img, 300,200,RGB, "Layer 3", 100, NORMAL_MODE);
gimp_image_add_layer($img, $layer, -1);
$layer = gimp_layer_new($img, 300,200,RGB, "Layer 4", 100, NORMAL_MODE);
gimp_image_add_layer($img, $layer, -1);
$layer = gimp_layer_new($img, 300,200,RGB, "Layer 5", 100, NORMAL_MODE);
gimp_image_add_layer($img, $layer, -1);
$img->gimp_image_undo_enable;
gimp_image_delete($img);
Gimp::end;
3) After the above code is executed, the Gimp instance will consistently
use about 140k more memory that does not get released. Re-running the
code doesn't result in any permanent increase, but if I add the
following piece of code to the above and execute it about 140k more is
permanently added to the memory being used by Gimp:
my $text_layer = gimp_text_fontname($img,-1,0,0,"Testing testing", 0, 0,
14, 0, "Arial Bold");
gimp_image_merge_down($img, $text_layer, CLIP_TO_BOTTOM_LAYER);
$text_layer = gimp_text_fontname($img,-1,0,0,"Testing testing", 0, 0,
14, 0, "Arial Bold");
gimp_image_merge_down($img, $text_layer, CLIP_TO_BOTTOM_LAYER);
$text_layer = gimp_text_fontname($img,-1,0,0,"Testing testing", 0, 0,
14, 0, "Arial Bold");
gimp_image_merge_down($img, $text_layer, CLIP_TO_BOTTOM_LAYER);
$text_layer = gimp_text_fontname($img,-1,0,0,"Testing testing", 0, 0,
14, 0, "Arial Bold");
gimp_image_merge_down($img, $text_layer, CLIP_TO_BOTTOM_LAYER);
$text_layer = gimp_text_fontname($img,-1,0,0,"Testing testing", 0, 0,
14, 0, "Arial Bold");
gimp_image_merge_down($img, $text_layer, CLIP_TO_BOTTOM_LAYER);
My actual perl scripts are now resulting in what appears to be a memory
leak that sporadically but consistently and permanently increases the
memory being used by the Gimp instance, and the above is the best way
I've found to consistently result in reproducing the issue. Please let
me know of any thoughts on how to better pinpoint the issue.
I am using Gimp 2.0.5 for GNU/Linux, Gimp Perl 2.0 and Pango 1.6.
Thanks,
Jared
________________________________________________________
Jared Whiting Myers Internet, Inc.
Senior Developer/ http://www.myers.com
Technical Lead
(408) 428-9960
"Taking Your Business To The Next Level"
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