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bug#14615: xterm--query results in slow -nw startup on some terminals
From: |
Glenn Morris |
Subject: |
bug#14615: xterm--query results in slow -nw startup on some terminals |
Date: |
Thu, 13 Jun 2013 21:36:56 -0400 |
User-agent: |
Gnus (www.gnus.org), GNU Emacs (www.gnu.org/software/emacs/) |
Stefan Monnier wrote:
> Could you add some `message's to xterm--query to see whether we take the
> synchronous or the asynchronous route?
Commenting out the
("\e[>" . xterm--version-handler)
makes it fast again.
Otherwise the slowness seems to be at this part:
(while (and (< i (length (car handler)))
(let ((evt (read-event nil nil 2)))
When handler == ("\e[>" . xterm--version-handler), i = 0, read-event
takes 2 seconds to return nil.
> Also, can you try to set debug-on-quit and get a backtrace during the
> 2s wait?
Not informative:
Debugger entered--Lisp error: (quit)
xterm--query("^[[>0c" (("^[[?" . xterm--version-handler) ("^[[>" .
xterm--version-handler)))
terminal-init-xterm()
tty-run-terminal-initialization(#<frame F1 0xb8cbc0>)
command-line()
normal-top-level()
> Stefan "who installed Debian's aterm, but whose aterm refuses to
> start, giving him a BadWindow error instead"
Mine is some ancient [1] self-compiled version on RHEL6.
[1] Hah, I just checked: installed 6.5 years ago.