On Thu, Aug 06, 2020 at 10:06:35AM -0400, Greg B wrote:
> Hello,
>
> I've been using dmenu for a window switcher with wmctrl. I noticed after
> a recent refactor to my window-listing function that I was seeing
> significant lag in the dmenu window popping up after my hotkey. I've
> done some digging and determined that including tabs and \037 (ASCII
> unit separator) cause noticeable startup delays in dmenu. It appears
> that no keys are lost - anything I type after invoking my hotkey for
> this script gets captured after dmenu finally renders. Nevertheless this
> is an annoyance.
>
> I am using the packaged dmenu in Ubuntu 20.04. A sample of the output of
> my window listing script is below, along with two simpler samples
> exhibiting slow startup behavior.
>
> I'm happy to do further testing or troubleshooting if anyone can point
> me in the right direction.
>
> -gb
>
> $ dmenu -v
> dmenu-4.8
>
> # simple repro with tabs - startup render seems to scale linearly with
> # number of tabs
> $ for i in {1..10}; do echo $'\t'; done | dmenu
>
> # simple repro with \037
> $ for i in {1..10}; do echo $'\037'; done | dmenu
>
> # sample output of window-listing script. tab-separated fields, and
> #
> \037 precedes the window ID (last column, 0x...)
> xfce4-panel.Xfce4-panel
> xfce4-panel 0x01200003
> xfdesktop.Xfdesktop Desktop 0x02400013
> Navig
> ator.Firefox software 0x04000019
> Alacritty.Alacritty alacritt
> y-terminal 0x05200002
> signal.Signal Signal 0x06400001
> spoti
> fy.Spotify Within 0x06c00001
> evolution.Evolution Inbox 0x08c00
> 020
> emacs.Emacs emacs 0x074000cb
> rambox.Rambox Rambox 0x04800
> 001
> evolution.Evolution [dmenu] 0x08ca4ad4
>
>
Hi,
Probably some complicated font setup. No issues here.
--
Kind regards,
Hiltjo
