Ran into an issue today where many many calls to image_get_info() caused the page load to sky rocket. Traced this back to this function call which in turn calls the filesize() function.
Requesting this module implement functionality to pull this data from the s3fs_file table rather than request the info from the remote S3 bucket, if possible.
https://api.drupal.org/api/drupal/includes%21image.inc/function/image_ge...
http://php.net/filesize
Closed: works as designed
2.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Drupal 7 end-of-life triage:
Drupal 7 reached end of life on January 5th.
The 7.x branches of S3FS do not have any additional planned releases.
The requests in this issue are well known and do not appear to be solvable inside S3FS. The solutions to this are external modules not assuming files are on high speed storage. Similar faults would occur with other nearline storage solutions.