We are using Super-Classic, so I believe that the garbage collection behavior is the same as Classic (Co-operative) and cannot be changed. SuperServer uses Combined mechanism (Background + Co-operative) by default.

Regards,
Anthony

--- In firebird-support@yahoogroups.com, "Fabiano" <fabianoaspro@...> wrote:
>
> The blocking beavior is for SS/SC? The Classic version has an different GC
> and maybe it does not occur.