[Fedora-i18n-bugs] [Bug 727385] sporadic slow key event processing

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https://bugzilla.redhat.com/show_bug.cgi?id=727385

Mariusz Wodzicki <wodzicki at math.berkeley.edu> changed:

           What    |Removed                     |Added
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                 CC|                            |wodzicki at math.berkeley.edu

--- Comment #24 from Mariusz Wodzicki <wodzicki at math.berkeley.edu> 2011-11-19 23:47:41 EST ---
The problem described by Pete Zaitcev is still there, and it does occur when
editing a file with vim in a terminal window.

The symptoms are very similar to the ones described by Pete Zeitcev:

1) vim often responds with a delay of 2-3 seconds to navigation keystrokes
(e.g., keeping pressed the right or left arrow keys may result in the cursor
stopping moving after a few step, and then, after a 2-3 seconds delay, jumping
abruptly to the end position, skipping all the intermediate ositions

2) using :w to write down the file often causes a similar 2-3 seconds delay.

The described behaviour is in fact very common, what is really striking, it
happens even when editing files of a tiny size, having no more than a few lines
and a few hundred characters.

An overall impression, when such events occur, is as if CPU/Memory are heavily
overloaded. I didn't notice anything suspect when I tried to monitor CPU/Memory
with the top command. This is similar to what Pete Zeitcev described in his bug
report.


The described problem occurs on a Fedora 16 system installed on a new Asus 
U46E notebook, equipped with a second generation i5 CPU and 8GB of RAM. I don't
remember this kind of behaviour when I was last using Fedora 15 on a different
machine in the Spring 2011.

To test whether this behavior depends on the desktop environment, I tested it
also in fluxbox. It certainly occurs in Fluxbox and when I edit a file with vim
in terminals other than gnome-terminal, e.g., lilyterm. Besides vim, I haven't
noticed any other application in a default Fedora 16 installation that behaves
in the similar sluggish, unresponsive, way.


The vim packages I have installed:

vim-common-7.3.315-1.fc16.x86_64
vim-enhanced-7.3.315-1.fc16.x86_64
vim-minimal-7.3.315-1.fc16.x86_64
vim-X11-7.3.315-1.fc16.x86_64
vim-filesystem-7.3.315-1.fc16.x86_64

Only vim-X11-7.3.315-1.fc16.x86_64, I think, I installed myself, the remaining
vim packages were installed by the anaconda installer.

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