[armedbear-devel] Significant increase in build time

Erik Huelsmann ehuels at gmail.com
Thu Nov 11 10:22:57 UTC 2010

Hi Blake,

On Sat, Nov 6, 2010 at 7:11 PM, Blake McBride <blake at mcbride.name> wrote:
> I'd really like to run a bench mark before and after the commit in
> question.  I spent a short time trying to run the benchmarks a while
> back but was unsuccessful getting it to run.  Can you help me with
> this?

Sure. What's your platform? If it's Linux/unix, getting the tests to
run is relatively easy: make sure  you have "make" and follow the
instructions in the README file.

When you have Windows, it's a bit harder. This is what I do to run the
tests on my windows machine:

<in the cl-bench root directory>
<open support.lisp>
<search #+win32, replace with #+(or win32 windows)>
<search #-win32, replace with #-(or win32 windows)>
<save, close>
cd files
copy *.lisp *.olisp
cd ..
:ld do-compilation-script
:ld do-execute-script

I hope the above works for you!



> Thanks.
> Blake
> On Wed, Oct 6, 2010 at 4:25 PM, Blake McBride <blake at mcbride.name> wrote:
>> That's helpful.  Thanks.  So now we need to do benchmark / runtime tests.
>> Thanks.
>> Blake
>> On Wed, Oct 6, 2010 at 4:17 PM, Erik Huelsmann <ehuels at gmail.com> wrote:
>>> Blake,
>>> Before going to bed, I did a quick test - as discussed over GMail chat
>>> - to see how much they differ in compilation times on other software.
>>> timing new code, Maxima compilation: 223.416s, loading: 25.8
>>> timing old code, Maxima compilation: 204.063s, loading: 29.174
>>> I have no idea of the variation of the Maxima compilation times; it
>>> looks like the new code is 10% slower at compiling, but 20% more
>>> efficient at loading. However, these were single runs, so my
>>> conclusions may be way off, depending on the variations.
>>> Bye,
>>> Erik.
>>> On Tue, Oct 5, 2010 at 5:52 PM, Blake McBride <blake at mcbride.name> wrote:
>>>> Greetings,
>>>> I hadn't built ABCL in a little while so I checked out the latest
>>>> version today and built it.  It seemed to be significantly slower than
>>>> before so I decided to investigate.  This is what I found.
>>>> In the past I could build ABCL in 2:43.  It now takes me 4:40.  That
>>>> (IMO) represents a pretty significant change in build time.  I did a
>>>> binary search and discovered that all of the change occurred at
>>>> revision 12918 - Generic Class File Branch Merge.
>>>> In general, I could't care less about the build time unless it is
>>>> indicative of a problem that could rear its head in my application.
>>>> Where is that time being spent?  Is there a change in runtime?
>>>> Loading? Compiling?
>>>> I'd be real interested in this.
>>>> Thanks.
>>>> Blake McBride
>>>> _______________________________________________
>>>> armedbear-devel mailing list
>>>> armedbear-devel at common-lisp.net
>>>> http://common-lisp.net/cgi-bin/mailman/listinfo/armedbear-devel

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