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List: konsole-devel
Subject: Re: [Konsole-devel] Review Request: patch to reduce memory usage
From: "Robert Knight" <robertknight () gmail ! com>
Date: 2009-07-08 3:03:27
Message-ID: 20090708030327.17504.42315 () localhost
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> On 2009-07-07 07:00:39, Kurt Hindenburg wrote:
> > If this patch has been applied, please close this on reviewboard.
This patch has been marked as submitted - do I need to do anything else?
- Robert
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
http://reviewboard.kde.org/r/802/#review1481
-----------------------------------------------------------
On 2009-06-17 16:22:24, mick22 wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://reviewboard.kde.org/r/802/
> -----------------------------------------------------------
>
> (Updated 2009-06-17 16:22:24)
>
>
> Review request for Konsole.
>
>
> Summary
> -------
>
> Here's a patch that drastically reduces mem usage when a fixed size \
> history is used:
> - new history storage type "HistoryTypeQList" (QList-based) set as \
> replacement for HistoryTypeBuffer
> - compact storage for history lines
>
> History lines are stored as an array of chars when possible (i.e. when
> color and rendition flag of all characters in the line are equal). 2 \
> bytes per character + overhead
> When not (easily) possible, it falls back to the current way of storing \
> history lines (array of QVector<Character>). 11 bytes per character + \
> overhead
> Memory usage has been cut down from about 171MB to 55MB for a konsole \
> process with 5 tabs, 30000 lines scrollback, 65 chars per line.
>
> Update:
> As suggested in https://bugs.kde.org/show_bug.cgi?id=176974#c20, a \
> formatting array has been introduced in v2 of the patch. The \
> CompactHistoryLine class can now handle single- and multi-color history \
> lines. This replaces v1 of the patch where 2 separate classes were used.
>
> This addresses bug 176974.
> https://bugs.kde.org/show_bug.cgi?id=176974
>
>
> Diffs
> -----
>
> /trunk/KDE/kdebase/apps/konsole/src/Character.h 981222
> /trunk/KDE/kdebase/apps/konsole/src/History.h 981222
> /trunk/KDE/kdebase/apps/konsole/src/History.cpp 981222
> /trunk/KDE/kdebase/apps/konsole/src/SessionController.cpp 981222
> /trunk/KDE/kdebase/apps/konsole/src/SessionManager.cpp 981222
>
> Diff: http://reviewboard.kde.org/r/802/diff
>
>
> Testing
> -------
>
> reasonably tested
>
>
> Thanks,
>
> mick22
>
>
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