https://bugs.kde.org/show_bug.cgi?id=465270
--- Comment #5 from John <[email protected]> --- (In reply to Vlad Zahorodnii from comment #1) > kwin periodically needs to access the disk, that's inevitable. We change the > scheduling policy for the main thread and libinput thread to RR. Not sure > that there's anything else we can do atm. If there are freezes, please check > whether changing the file system type helps, ftr I haven't experienced > severe issues with ext4. It might be inevitable, but that doesn't mean that it's right to do that! I have never seen Windows XP - 7 (the only ones that I used) to ever have the graphical interface and the interactions with it ever freeze or slow down. There is definitely something plain wrong or unoptimized into what Kwin is doing since a disk IO, no matter how heavy it can make it freeze or slow down. Plus, there's a reason why besides the disk(s) there's also RAM storage type. Why isn't the whole Plasma session loaded entirely into RAM, where RAM storage is pleynty and then make Kwin sync (read / write) from RAM only and only from time to time write something to disk? As for the filesystem, checking if this problems happen with another filesystem time is too hard to do as it requires a full back / restore + reinstallation of the OS, something I'm not prepared to do now. And also I don't care if it's not happening on the old EXT4 one as I moved to BRFS for the extra features that it has and I don't plane to move back to EXT4 ever. So, this problem is either fixed for BTRFS and comparable in features filesystems or I will ever consider it unfixed and a problem in KDE software. -- You are receiving this mail because: You are watching all bug changes.
