[Openmcl-devel] C-c C-c of a function referencing a large constant takes a long time to compile

Brian Mastenbrook bmastenb at cs.indiana.edu
Sat Jun 25 14:25:24 UTC 2005


On Jun 25, 2005, at 1:52 AM, David Steuber wrote:

> Hello slime-devel,
>
> This evening I discovered a nasty annoyance with Slime and OpenMCL  
> when doing C-c C-c to compile a function.  The function makes  
> reference to a 46x46x46x46 constant array of integers (defined with  
> DEFCONSTANT).  Any such function that refers to the array takes  
> over a minute to compile with C-c C-c.  If I have openmcl running  
> in a terminal, the same function will recompile instantly.  Here  
> are a few bits of relevant code and *slime-events*:

Hi David,

You say "If I have openmcl running in a terminal, the same function  
will recompile instantly." - what does "recompile" mean? Are you sure  
that you're calling COMPILE on it? I remember mentions of bad  
performance when compiling constants on openmcl-devel - this could be  
my memory playing tricks on me, though.

--
Brian Mastenbrook
brian at mastenbrook.net
http://www.iscblog.info/




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