ITAGAKI Takahiro <itagaki.takahiro@oss.ntt.co.jp> writes:
> I assume we want to gather the statistics per resource (represented by
> LWLockKind in my patch), not per LWLockId.
Why? I haven't yet seen any problem where that looked useful.
The named LWLocks are certainly sui generis, and as for things like
per-buffer locks I haven't seen any need for aggregate statistics ---
I'd rather know about "hot spots" if there are any buffers that are
not like the rest.
regards, tom lane
