I'm using several sshfs mounts (fstab) hosted on a 1Gbit LAN. After updating to 15.08, the directory loads at a snail's pace, scrolling is sluggish. This wasn't the case with 15.04, and using konqueror (=dolphinpart4) is as fluid. Reproducible: Always Steps to Reproduce: 1. open an sshfs mount with > 100 subdirectories 2. attempt to scroll/navigate Actual Results: "Number of items" column for each subfolder is populating very slowly. Scrolling is sluggish. Expected Results: Near instant population of "number of items", smooth scrolling I'm running latest packages. I already had to switch from smb to sshfs to get my folder icons back, because you guys decided the access via smb is "slow", now sshfs is sluggish as hell out of a sudden. The irony in this is that even before this regression, I had lower latency/faster access using smb than sshfs and now it's even more crippled.
This also affects ntfs partitions, apparently.
It seems it's only the details view which is affected by this issue. The other two perform as they do on dolphin4.
*** Bug 352411 has been marked as a duplicate of this bug. ***
Just for the record: bug 352411 does no mention sshfs, so it's probably about folders on a normal disk, but it might still be the same issue (which I cannot reproduce, by the way).
Created attachment 94502 [details] listing a large directory with dolphin4 open folder -> scroll down as fast as the number of items gets populated: about 7 seconds
Created attachment 94503 [details] listing a large directory with dolphin5 same as with dolphin4, but takes about 39 seconds. scrolling stutters.
I have also noticed, that scrolling down with dolphin4 produces MORE CPU load (9%) than with dolphin5. kiofile also shows up briefly with 1%, then goes away. With dolphin5 the load is only 4%, with ssh and sshfs also showing a steady 1% CPU load. No kiofile process shows up. This is with ksysguard, sorted by descending CPU usage.
can we please have an option to disable item/folder population? it just hammers disks, decreasing their lifespan, while providing minimal to no benefits.
No. Just because you don't think it's useful, doesn't mean others don't. Else it will go the way of the custom folder icons that were suddenly deemed "too slow to display" on "remote" filesystems and disabled without the user having any say in it, nor the possibility to re-enable them. What has to be done here, is fix this regression, wherever it stems from, not just disable functionality because it's bugged. If I can provide any more info, do tell.
your comment is plain ignorant, you say that everyone should use the settings you (and the mysterious "others") find best without any options to tweak them. just cause you want it that way. anyway, the best way to reproduce this on a local filesystem is to try it on a hdd, not on ssd, just open a large folder with lots of subfolders. as you can read in my bug 352411.
No, what I'm saying is that I don't want to lose features because KDE devs seem to cut functionality altogether over introducing more options (see custom folder icon case). In fact, that "option" is already present - if you don't want to see the subfolder count, you can remove the size column.
Even without the size column, in compact view mode, it still searches for subfolders. Probably so it knows weather to display the "expand" arrow in the tree. That's why i want the option to turn it off/on, because in compact view mode, it provides almost no benefit, as there's no size column. On other operating systems most file managers don't display the subfolder count for the size column, it's just empty for folders.
Still an issue with 15.12, working just fine on dolphin4.
Issue still persists, still sticking with dolphin4.
Is there any info I could provide to help fixing this?
Well, whatever you've done fixed it (not necessarily dolphin itself). I now have the same performance with doplhin4 and dolphin5 (16.04.3), viewing the same share I always test it with.