[kio] [Bug 317612] New: CPU to 100% when copying lot of files to a shared folder

[Sergio García]

https://bugs.kde.org/show_bug.cgi?id=317612

            Bug ID: 317612
           Summary: CPU to 100% when copying lot of files to a shared
                    folder
    Classification: Unclassified
           Product: kio
           Version: 4.10.1
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: grave
          Priority: NOR
         Component: smb
          Assignee: unassigned-bugs at kde.org
          Reporter: yayalose at gmail.com

After some time, when copying lots of big files from my local computer to a
shared network drive, my computer freezes completely. If I execute the "top"
command I see how the longer the copying process lasts, the more CPU resources
a process "kswapd0" use. The last time I tried, it passed only 5 minutes since
the resource usage of "kswapd0" began to use all my CPU. I installed nautilus
to check if this behavior also appeared (using other processes) but it has been
copying non-stop smoothly for 2 days.

Reproducible: Always

Steps to Reproduce:
1. Attach directly (not attached to other computer) a network drive using
samba.
2. Move a folder plenty of big files (movies, for example) to the remote.
3. Keep track of the CPU usage.
Actual Results:  
100% of CPU usage.

Expected Results:  
The files should be moved to the network folder and the unique resource
intensively used should be networking.

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