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From: nalaginrut <nalaginrut@gmail.com>
To: Andy Wingo <wingo@pobox.com>
Cc: "Ludovic Courtès" <ludo@gnu.org>, 12033@debbugs.gnu.org
Subject: bug#12033: closed (Re: bug#12033: format should be faster)
Date: Thu, 23 Aug 2012 11:23:56 +0800	[thread overview]
Message-ID: <1345692236.5141.79.camel@Renee-SUSE.suse> (raw)
In-Reply-To: <87vcgcdoml.fsf@pobox.com>

hey guys! Any conclusion?

On Tue, 2012-08-21 at 21:35 +0200, Andy Wingo wrote: 
> On Tue 21 Aug 2012 13:37, ludo@gnu.org (Ludovic Courtès) writes:
> 
> >> It seems clear that in this case, Guile "should" know how to dispatch
> >> on the format string just once, outside of the loop, instead of doing
> >> it in every iteration.
> >
> > I think Andy would say: “inline cache!”.  :-)
> 
> :-)
> 
> There are lots of possibilities here.  You could "compile" a format
> string into a closure, and save it in a hash table.  You could compile
> it to Scheme and then compile that procedure.  You could recognize some
> common degenerate cases.
> 
> Dunno!  In this case I would compile the string into a closure.  Seems
> pretty cheap and it would kill the dispatch overhead.
> 
> Andy







  reply	other threads:[~2012-08-23  3:23 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-23  6:11 bug#12033: format should be faster nalaginrut
2012-08-18 22:19 ` Ludovic Courtès
2012-08-20  6:27   ` nalaginrut
2012-08-20 21:51     ` Ludovic Courtès
     [not found] ` <handler.12033.D12033.134549952018901.notifdone@debbugs.gnu.org>
2012-08-20 22:37   ` bug#12033: closed (Re: bug#12033: format should be faster) Ludovic Courtès
2012-08-21  2:50     ` nalaginrut
2012-08-21  3:00       ` Noah Lavine
2012-08-21  3:32         ` Ian Price
2012-08-21 11:37         ` Ludovic Courtès
2012-08-21 11:52           ` Noah Lavine
2012-08-21 13:40             ` Ludovic Courtès
2012-08-21 19:35           ` Andy Wingo
2012-08-23  3:23             ` nalaginrut [this message]
2012-08-23 21:55               ` Ludovic Courtès

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