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Re: [STUMP] key press detection lag?

From: Sam Kleinman
Subject: Re: [STUMP] key press detection lag?
Date: Tue, 18 Feb 2014 00:25:14 -0500
User-agent: mu4e; emacs 24.3.6

Just to clarify how compiling stump works (on arch):

You can upgrade SBCL and unless you recompile/upgrade stump with the new
version of SBCL you won't get the benefit of any changes to SBCL. At the
same time, you don't *need* to recompile stump when you upgrade SBCL: it
will continue to run without issue, but it's usually a good idea to


On Saturday, February 15 2014, 11:41:28, Eric Abrahamsen wrote:

> David Bjergaard <address@hidden> writes:
>> Hi Eric,
>> It sounds like the problem is "fixing itself." If you suspect that it
>> really is the version of sbcl, could you please post the version you
>> were using?  I'm running with, and don't have any
>> issues.  I see that you are now running the bleeding edge of sbcl.
>> Another step would be rolling back to the version before you started
>> noticing the lag, and seeing if that fixes the issue.  If it does we can
>> document this as a known issue on the wiki.
>> Thanks for investigating/reporting this, I suspect as this buggy sbcl
>> version propagates through various repos we may see more reports similar
>> to yours.
> Yeah, I have no idea at this point. The arch sbcl package had been at
> 1.1.14 previously. I downgraded back to 1.1.14, and then to 1.1.12, and
> my highly-unscientific testing methods showed no particular slowdown. I
> never succeeded compiling with clisp, despite following several recipes
> mentioned on the wiki and other places.
> The problem is I saw the slowdown after a _stumpwm_ upgrade, not an sbcl
> upgrade. Perhaps I didn't do a "make clean" when I rebuilt and was
> somehow running uncompiled files, or else it was smurfs. Sorry for the
> noise!
>> Cheers,
>>     Dave
>> Eric Abrahamsen <address@hidden> writes:
>>> Ruthard Baudach <address@hidden> writes:
>>>>>== Ausz├╝ge aus der Nachricht von  Eric Abrahamsen vom 2014-02-10 08:09:
>>>>> This could totally be my imagination, but since there have been so many
>>>>> updates recently, I thought I'd check in and see what other people
>>>>> think...
>>>>> I'm running stump on archlinux, with no desktop manager. My subjective
>>>>> feeling is that I'm getting a lot of tardy prefix keypress detection
>>>>> from stumpwm: I hit "C-t c", which should run-or-raise my terminal, and
>>>>> instead a "c" gets sent to the focused window, and then stump picks up the
>>>>> "C-t" and waits for further input. This can be pretty annoying, for
>>>>> instance when emacs/gnus is focused and the unintentional "c" marks the
>>>>> group under point as completely read.
>>>>> Has this gotten worse recently, or am I dreaming? If I am dreaming, is
>>>>> there any way to block key input so that, even if stump is slow, it
>>>>> still consumes further keypresses?
>>>> I do not have this issue, but had it using C-t as prefix key -- it's too
>>>> uncomfortable for me to use it all the time.
>>>> I'm using the Windows key as prefix key:
>>>> .stumpwmrc:
>>>> ---------------------->%-------------------
>>>> (run-shell-command "xmodmap -e \"keycode 133 = F20\"")
>>>> (run-shell-command "xmodmap -e \"clear Mod4\"")
>>>> (set-prefix-key (kbd "F20"))
>>>> ---------------------->%-------------------
>>> Thanks! But the fact remains that you're still using an escape key:
>>> a single keypress that has to be caught by Stumpwm before it will read
>>> what follows. It doesn't seems like which particular escape key you're
>>> using should matter.
>>> Arch just updated SBCL to 1.1.15, and the problem seems significantly
>>> better, though I'll want to give it a few days to see. I swear it wasn't
>>> my imagination!
>>> E
>>> _______________________________________________
>>> Stumpwm-devel mailing list
>>> address@hidden
>> _______________________________________________
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> _______________________________________________
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Sam Kleinman (tychoish):
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