Thunar becomes unusable on ptp/mtp devices when thumbnails enabled

Submitted by b3nmore

Assigned to Xfce Bug Triage

Link to original bug (#12111)

Description

With thumbnails enabled, thunar becomes unbearable slow on ptp (via ghoto2:// and local thumbs) and mtp (via mtp:// and thumbs on all files) devices. I suspect, that each time the view changes, eg. by scrolling, a new retrieval of (possibly) all thumbs is triggered. Until this is completed the ui stays frozen.

On local folders or network folders via sftp:// this works differently in two ways: (1) Thumbs are fetched only for files currently visible in thunar, (2) For thumbs already retrieved the cache is used.

Given the lower io speeds on ptp/mtp devices this approach should be adapted for ptp/mtp devices as well (if possible).

Version: 1.6.10