| Summary: | thumbnail.so causes high CPU load | ||
|---|---|---|---|
| Product: | [Frameworks and Libraries] kio-extras | Reporter: | Peter Ullinger <peter.ullinger> |
| Component: | Thumbnails and previews | Assignee: | Plasma Bugs List <plasma-bugs> |
| Status: | REPORTED --- | ||
| Severity: | minor | CC: | bhush94, d_debnath, jareyoh415, loveisgrief, michele.mazza, nate, plasma-bugs |
| Priority: | NOR | ||
| Version: | 5.9.2 | ||
| Target Milestone: | --- | ||
| Platform: | Arch Linux | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Sentry Crash Report: | |||
| Attachments: | Excerpt from Ksys informations about thumbnail.so during the high load. | ||
Attaching a file of memory allocations tells us nothing about the CPU load. If you want to reopen this bug, I need: - the name of the process that's using a lot of CPU. - Was something meant to be showing an uncrawled folder? If so, what part makes a bug. - Ideally, a callgrind log. - The name of the process causing the high CPU load is thumbnail.so according to htop and ksysguard. - The process is started every time I browse a folder with Dolphin and switch on the preview. thumbnail.so will then use 100% of one CPU core until I kill it, even if this folder has only three PDFs or two videos in it and those are shown after a split of a second. - Sorry, but what is a callgrind log, and where do I find thumbnail.so's one? Htops infos: https://goo.gl/photos/ZaQrtizfXu9rkqJH6 I confirm this bug. This happened to me when Dolphin had a folder open where there is a file that's being modified continuously, in my case I was downloading a file using aria2c. There is a reddit thread about it from about a year ago: https://www.reddit.com/r/kde/comments/a56xwb/thumbnailso_100_cpu_after_upgrade_in_debian/ This bug is still relevant! Manifests itself, when Dolphin had a folder open where there is a file that's being modified continuously. Can confirm on OpenSuse Tumbleweed. Trying to generate thumbnails on a read-only drive. |
Created attachment 104114 [details] Excerpt from Ksys informations about thumbnail.so during the high load. thumbnail.so causes high CPU load every time it has to work on a formaly uncrawled folder. Plasma Version: 5.9.2 Framework Version: 5.31.0 Qt Version: 5.8.0 Distro: Manjaro 64 Bit