From kde-bugs-dist  Fri Mar 31 23:58:47 2017
From: Aaron Williams <bugzilla_noreply () kde ! org>
Date: Fri, 31 Mar 2017 23:58:47 +0000
To: kde-bugs-dist
Subject: [kate] [Bug 378330] New: Kate is very slow when deleting or pasting a lot of text
Message-Id: <bug-378330-17878 () http ! bugs ! kde ! org/>
X-MARC-Message: https://marc.info/?l=kde-bugs-dist&m=149100474217074

https://bugs.kde.org/show_bug.cgi?id=3D378330

            Bug ID: 378330
           Summary: Kate is very slow when deleting or pasting a lot of
                    text
           Product: kate
           Version: unspecified
          Platform: openSUSE RPMs
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kwrite-bugs-null@kde.org
          Reporter: aaronw@doofus.org
  Target Milestone: ---

I am copying and pasting logs from a konsole session that contain 7000-12000
lines of text, often 100 columns wide.

As I update the logs I select all of the text in a window (<ctrl> A) then h=
it
<backspace> to delete the text. This takes many seconds to complete with the
CPU pegged at 100%. This is plain text. The select all is fast but the dele=
te
operation is quite slow.

Next I select all of the text in a konsole session with a large buffer which
can contain upwards of 12000 lines of text from minicom then type <ctrl V> =
to
paste it into Kate. This takes several minutes to complete, again with the =
CPU
pegged at 100%.

I also see that Kate is using roughly 3.7GB of virtual memory (518K residen=
t).

Note that this is Kate 3.14.9.

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