Re: [UPDATED] A GUC variable to replace PGBE_ACTIVITY_SIZE

"Heikki Linnakangas"  writes:
> Tom Lane wrote:
>> Huh?  How could we be assigning to a slot that is not in use?

> Before the patch, we loop through the shared PgBackendStatus slots 
> (there is MaxBackends of them), and issue a memcpy for each to copy it 
> to our local slot. After that, we check if it was actually in use.
> After the patch, we still loop through the shared slots, but only issue 
> the memcpy for slots that are in use.

Oh, you're talking about *fetching* the slot contents, not *assigning*
to them.  Sorry, probably should have read the patch instead of just
reacting to the comment ...

			regards, tom lane