[elephant-devel] Multi user client-server performance

[Ian Eslick]

This is an issue on Allegro since it cannot thread and call foreign  
code at the same time.  I do not believe that SBCL suffers from this  
particular limitation - presuming the C code is thread safe which BDB  
is.

Ian

On Apr 4, 2008, at 8:24 PM, Vagif Verdi wrote:
> I’m looking for a object database to play with and possibly adopt  
> for future projects, and I’m reading elephant site and manuals so far.
> I have a few questions to clarify.
>
> Reading Allegrocache site http://www.franz.com/products/allegrocache/AllegroCache_for_ILC_2005.htm 
>  I stumbled into this remark:
>
> “In order to ensure isolation, the Berkeley DB code employs  
> aggressive locking and uses low level OS locking primitives.  The  
> result is that the Lisp application just froze when the process was  
> waiting for access to data. This does not fit well with Lisp's own  
> multithreading.”
>
> Since I’m interested to use elephant with Berkeley db, I want to  
> ask, how it fares in multi-user client-server environment?
> Are there real life usage scenarios and if yes, how many users and  
> what size of database?
>
> Regards,
> Vagif Verdi.
>
>
>
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