Re: Add client connection check during the execution of the query - Mailing list pgsql-hackers

On Thu, Jul 18, 2019 at 3:19 PM Tatsuo Ishii <ishii@sraoss.co.jp> wrote:
> So the performance is about 5% down with the feature enabled in this
> case.  For me, 5% down is not subtle. Probably we should warn this in
> the doc.

Yeah, the timer logic is wrong.  I didn't have time to look into it
but with truss/strace for some reason I see 3 setitimer() syscalls for
every query, but I think this doesn't even need to set the timer for
every query.


--
Thomas Munro
https://enterprisedb.com