Performance issues with many images on page

For now, the module makes "copies" of images in order to "force" the core image style generation to process the many time the same image.

For now, when you flush caches, the module delete all "source-copies", in order to "clean the mess".

If I would able to detect "unused sources", the clean will be more selective, but i don't figure how do that...

I have rework the flush process, now it only delete "sources-copies" that are not used in a crops, and add an hook_file_delete to cleans crops when a file are deleted ...

I hope that can fix you issue

We still have the performance issue. Not sure what can be done but having the image styles deleted on a cache flush or a page save is a performance problem for us on the server. What would be ideal is the images would only be deleted on the image flush command or if the focal point / crop was changed on the field and then only those images would be deleted.

Did you have some technical log ?

Flushing cache did not delete "derivatives" (create by ImageStyling process) but only "copies of sources" used to make contextual crop working.

The main goal of media_contextual_crop "copies" are to let ImageStyle processing not touch, so if you flush image style, nothing change.

The clue are "if a copie exist" (not a derivativ) but not use any more, how can I detect it, and when, and i don't think a cron task will be better.

hi,

I have push the deactivation of "copies flush" on cache flush.

Check 1.2.x dev

FIxed in 1.2.2 :
- cleaning copies have been moved from cache_flush to cron
- add more cleaning trigger (when original image are deleted)