Re: Improve monitoring of shared memory allocations

Hi,

I think it's almost committable. Attached is v8 with some minor review
> adjustments, and updated commit messages. Please read through those and
> feel free to suggest changes.
>
>
The changes look good to me.
About the following question.
/* XXX what about segment size? should check have HASH_SEGMENT? */
Do you mean for a shared hash table should the caller have specified
HASH_SEGMENT
in flags?
It appears that the current code does not require this change. All the
shared hash tables seem
to have the default segment size.
I left the comment as it is as I am not sure if you intend to remove it or
not.

> I still found the hash_get_init_size() comment unclear, and it also
> referenced init_size, which is no longer relevant. I improved the
> comment a bit (I find it useful to mimic comments of nearby functions,
> so I did that too here). The "initial_elems" name was a bit confusing,
> as it seemed to suggest "number of elements", but it's a simple flag. So
> I renamed it to "prealloc", which seems clearer to me. I also tweaked
> (reordered/reformatted) the conditions a bit.

I appreciate your edtis, the comment and code are clearer now.

PFA the patches after merging the review patches.

Thank you,
Rahila Syed