Re: Default of max_stack_depth and getrlimit

Le Monday 21 July 2008, Heikki Linnakangas a écrit :
> Cédric Villemain wrote:
> > Le Monday 21 July 2008, Heikki Linnakangas a écrit :
> >> I think we should differentiate between "infinite" and "unknown" in the
> >> return value of get_stack_depth_limit(), and use max_stack_depth of 2MB
> >> in case of infinite, and fall back to the 100kB only in the unknown
> >> case.
> >
> > Why 2MB ? I believed that 3.5MB is the effective good maximum , is that
> > too much ?
>
> 2MB is the value we set max_stack_depth to, unless getrlimit() says that
> the actual stack limit is lower than that.
>
> I believe the 2MB figure is just an arbitrary value, thought to be quite
> safe, but also high enough that most people won't need to raise it.
> Before we started to use getrlimit(), we used to just default
> max_stack_depth=2MB.

Ok, thank you for the explanation.

>
> --
>    Heikki Linnakangas
>    EnterpriseDB   http://www.enterprisedb.com



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Cédric Villemain
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