[elephant-devel] Testresult and patches for sbcl amd64

[Henrik Hjelte]

On Mon, 2007-02-05 at 14:04 -0500, Ian Eslick wrote:
> Sounds like we're getting into much better shape, thank you!  I'll  
> look over and integrate these.
> 
> What was the problem with %BIGNUM-REF for SBCL.  It was in there  
> originally to avoid the consing that SBCL/CMU does with ldb.
I don't know what BIGNUM-REF actually is meant to do, but it returned
the whole bignum it seems, or maybe it was a 64 bit integer. Anyway it
was not a 32bit value, which was expected by buffer-write-uint. 
I did a quick check for consing, and I don't think it is a problem
anymore, at least not on sbcl.

/Henrik

(time (dotimes (i 100000000)(dotimes (x 3) (ldb (byte 32 (* 32 x)) i))))

Evaluation took:
  1.321 seconds of real time
  1.256079 seconds of user run time
  0.024001 seconds of system run time
  0 calls to %EVAL
  0 page faults and
  0 bytes consed.



> 
> Ian
> 
> 
> On Feb 5, 2007, at 1:21 PM, Henrik Hjelte wrote:
> 
> > Hello, here are some results when testing the bdb backend-tests on
> > sbcl/amd64/linux. There were some problems with the serializer2  
> > code, I
> > have attached a patch (actually three changes) in diff -u format  
> > against
> > cvs (but not last two changes).
> >
> >   * install documentation, some references to bdb 4.4 changed to 4.5
> >   * optimizations did not work when testing on 64 bit sbcl, removed  
> > for
> > sbcl and cmu to be safe
> >   * bugfix serializing the value (expt 2 31) which was deserialized  
> > to a
> > negative number
> >   * Bugfix: most-negative-fixnum on 64 bit Lisps was serialized as  
> > a 32
> > bit value
> >
> >
> > Now no tests fail the first time (do-backend-tests) is run.
> > When repeating the tests, prepares-bdb fails.
> >
> > I have also attached a bash script that downloads berkeley-db,  
> > installs
> > it, and makes a default config file for Linux. Maybe someone finds it
> > useful.
> >
> > Update: I saw that Ian had made a recent change for allegro, which I
> > have made for sbcl/cmucl. You see it when you look at my patch, the  
> > ldb
> > version should be the one for all lisps.
> >
> > /Henrik Hjelte
> > <somechanges.diff>
> > <install-bdb.sh>
> > _______________________________________________
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> > elephant-devel at common-lisp.net
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> 
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