[armedbear-devel] Significant increase in build time
blake at mcbride.name
Wed Oct 6 21:25:37 UTC 2010
That's helpful. Thanks. So now we need to do benchmark / runtime tests.
On Wed, Oct 6, 2010 at 4:17 PM, Erik Huelsmann <ehuels at gmail.com> wrote:
> 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.
> On Tue, Oct 5, 2010 at 5:52 PM, Blake McBride <blake at mcbride.name> wrote:
>> 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.
>> Blake McBride
>> armedbear-devel mailing list
>> armedbear-devel at common-lisp.net
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