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bug#16594: 24.3.50; very slow redraw when resizing windows horizontally
From: |
Eli Zaretskii |
Subject: |
bug#16594: 24.3.50; very slow redraw when resizing windows horizontally |
Date: |
Thu, 30 Jan 2014 18:15:27 +0200 |
> From: Darren Hoo <darren.hoo@gmail.com>
> Date: Thu, 30 Jan 2014 16:01:42 +0800
>
> emacs -q
> (scroll-bar-mode 'nil)
> C-x 3
>
> then try to resize the windows using mouse several times and emacs
> redisplay is so slow that you can notice the fringes besides the drag
> handle is repainted from top to bottom frame by frame.
>
> profiling shows `read-event' takes much of the time, is this the real
> cause?
>
> - command-execute 207 98%
> - call-interactively 207 98%
> - mouse-drag-vertical-line 202 96%
> - mouse-drag-line 202 96%
> - eval 202 96%
> - track-mouse 202 96%
> - funcall 202 96%
> - #<compiled 0x40a712ed> 202 96%
> - read-event 184 87%
> - redisplay_internal (C function) 1 0%
> eval 1 0%
> + profiler-report 5 2%
> - ... 2 0%
> Automatic GC 2 0%
> + redisplay_internal (C function) 1 0%
According to the profile, if there is something slow, it's not in the
display engine, but in read-event.
- bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, (continued)
- bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, Jan D., 2014/01/31
- bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, Eli Zaretskii, 2014/01/31
- bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, Jan D., 2014/01/31
- bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, Darren Hoo, 2014/01/31
- bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, Jan D., 2014/01/31
- bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, Darren Hoo, 2014/01/31
- bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, martin rudalics, 2014/01/30
- bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, Stefan Monnier, 2014/01/30
- bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, martin rudalics, 2014/01/31
bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, Darren Hoo, 2014/01/30
bug#16594: 24.3.50; very slow redraw when resizing windows horizontally,
Eli Zaretskii <=
bug#16594: 24.3.50; very slow redraw when resizing windows horizontally, Darren Hoo, 2014/01/31