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On Thu, 2007-07-05 at 13:58 +0200, Pierre THIERRY wrote:
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<FONT COLOR="#000000">Scribit Robert L. Read dies 04/07/2007 hora 17:49:</FONT>
<FONT COLOR="#000000">> The Postmodern backend is not quite twice as fast on our testsuite as</FONT>
<FONT COLOR="#000000">> the CL-SQL backend.</FONT>
<FONT COLOR="#000000">Great. I found the CL-SQL backend with PostgreSQL a bit slow for my</FONT>
<FONT COLOR="#000000">specific use case. Do you know why and how this backend is so much</FONT>
<FONT COLOR="#000000">faster?</FONT>
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I haven't studied it deeply; Henrik could answer better than I. However, it uses tables more <BR>
effectively, and uses stored procedures which are very Postgres-specific and not portable to <BR>
a different database.
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<FONT COLOR="#000000">> Postmodern defines "db-error" incompatibly with the BDB backend, so I</FONT>
<FONT COLOR="#000000">> renamed the BDB symbol from db-error to bdb-db-error.</FONT>
<FONT COLOR="#000000">Was there any value in having the same condition for all backends? If</FONT>
<FONT COLOR="#000000">yes, will it be a goal to "fix" this divergence?</FONT>
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No, this is an internal matter ---- I don't think we have attempted to provide a cross-platform <BR>
error mechanism, and I would hesitate to try to do so.<BR>
<BR>
Ideally, I would like the Elephant development to be shaped by the actual needs of the users.<BR>
Although we have been responsive to bugs, I don't feel that we have been given a lot of <BR>
feedback in terms of what direction it should take.<BR>
<BR>
I agree with Ian that a pure-lisp backend would be nice, because it would let someone <BR>
use Elephant without installing anything else, while still leaving open the engineering <BR>
decision of what to use later.
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<FONT COLOR="#000000">Curiously,</FONT>
<FONT COLOR="#000000">Pierre</FONT>
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