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Re: Comparing Guile's GC with BDW-GC

From: Han-Wen Nienhuys
Subject: Re: Comparing Guile's GC with BDW-GC
Date: Sun, 09 Nov 2008 00:38:36 -0200
User-agent: Thunderbird (X11/20080723)

Ludovic Courtès escreveu:
> Hello!

>                        heap size (MiB) execution time (s.)
>   Guile                1.54 (1.00x)      6.316 (1.00x)
>   BDW-GC, FSD=3        2.41 (1.57x)      4.943 (0.78x)

I wonder whether this is a useful benchmark. 1.54 mb is small compared
to the 2mb L2 cache of a core duo.  I think it's best to look
at tests that exercise a larger working set.

>From casual inspection of the  numbers, I'd say that going to BDW 
is worth it: the speed/memory usage is roughly comparable, and the 
ability to junk 6k lines of hairy code is definitely worth it.

 Han-Wen Nienhuys - address@hidden -

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