From: Andy Wingo <wingo@pobox.com>
To: Mark H Weaver <mhw@netris.org>
Cc: guile-devel@gnu.org
Subject: Re: GNU Guile branch, master, updated. v2.1.0-163-g283ab48
Date: Thu, 08 Mar 2012 10:09:21 +0100 [thread overview]
Message-ID: <87y5rbxxvi.fsf@pobox.com> (raw)
In-Reply-To: <87ipifvn9j.fsf@netris.org> (Mark H. Weaver's message of "Wed, 07 Mar 2012 21:29:12 -0500")
Hi,
On Thu 08 Mar 2012 03:29, Mark H Weaver <mhw@netris.org> writes:
>> commit 283ab48d3f20a5c5281cafc29f0c30c8d8ace9ee
>> Author: Andy Wingo <wingo-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
>> Date: Wed Mar 7 19:01:56 2012 +0100
>>
>> faster (make-prompt-tag); default-prompt-tag is a parameter
>>
>> * module/ice-9/boot-9.scm (default-prompt-tag): Once parameters have
>> booted, redefine as a parameter.
>
> I fear that making 'default-prompt-tag' a parameter might slow things
> down quite a bit on platforms with a slow implementation of thread local
> storage.
Not the case! It shouldn't depend on thread-local storage at all
actually since the VM already has a handle on the current thread and
dynamic state.
> What's the anticipated use case for this?
Parameterizing default prompts? It allows users to re-set the
user/system process boundary for a dynamic extent.
Andy
--
http://wingolog.org/
next prev parent reply other threads:[~2012-03-08 9:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <E1S5LBe-00014e-4I@vcs.savannah.gnu.org>
2012-03-08 2:29 ` GNU Guile branch, master, updated. v2.1.0-163-g283ab48 Mark H Weaver
2012-03-08 9:09 ` Andy Wingo [this message]
2012-03-08 14:28 ` Mark H Weaver
2012-03-08 14:34 ` Andy Wingo
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