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Re: [Chicken-hackers] "make check" is 40 times slower than "make" (gcc 4

From: Peter Bex
Subject: Re: [Chicken-hackers] "make check" is 40 times slower than "make" (gcc 4.9)
Date: Thu, 30 Apr 2015 19:23:38 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

On Thu, Apr 30, 2015 at 06:26:22PM +0200, Sven Hartrumpf wrote:
> PB 2015-04-30 16:46:
> > An extra data point for your report: With gcc-4.8 it's still fast, so it
> > really is a regression between 4.8 and 4.9.  If you're using Debian, this
> > may be an acceptable workaround for you: "apt-get install gcc-4.8", run
> > "make confclean" and pass C_COMPILER=gcc-4.8 to all subsequent make
> > invocations.
> BTW: gcc 5.1.0 is still slow.
> I have never filed a bug against gcc.

Neither have I.

> Where should I start?
> What would be a minimal test program?

What this particular CHICKEN test is doing is simply to generate
a function call with a LOT of arguments (it makes function calls
from 1998 up to 2048 arguments).  It could be the call or the function
itself that is the problem (though I think it's the function itself,
using varargs).

You can probably find information on how to file a bugreport on
their website, or you can ask on their mailinglist or IRC.

You could also file a bug with your operating system vendor and
let them push it upstream.   I'm not sure if that makes things
easier, and it may also make things harder.


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