Re: LISTEN/NOTIFY benchmarks?
От
prashanth@jibenetworks.com
Тема
Re: LISTEN/NOTIFY benchmarks?
Дата
Msg-id
20030430002735.GA4046@prashanth.jibenetworks.com
Ответ на
Re: LISTEN/NOTIFY benchmarks? (Tom Lane)
Список
Дерево обсуждения
LISTEN/NOTIFY benchmarks? prashanth@jibenetworks.com
Re: LISTEN/NOTIFY benchmarks? Hannu Krosing <hannu@tm.ee>
Re: LISTEN/NOTIFY benchmarks? prashanth@jibenetworks.com
Re: LISTEN/NOTIFY benchmarks? Tom Lane <tgl@sss.pgh.pa.us>
Re: LISTEN/NOTIFY benchmarks? prashanth@jibenetworks.com
Re: LISTEN/NOTIFY benchmarks? Tom Lane <tgl@sss.pgh.pa.us>
Re: LISTEN/NOTIFY benchmarks? prashanth@jibenetworks.com
Re: LISTEN/NOTIFY benchmarks? Tom Lane <tgl@sss.pgh.pa.us>
Re: LISTEN/NOTIFY benchmarks? Sean Chittenden <sean@chittenden.org>
Re: LISTEN/NOTIFY benchmarks? Gavin Sherry <swm@linuxworld.com.au>
Re: LISTEN/NOTIFY benchmarks? Sean Chittenden <sean@chittenden.org>
Re: LISTEN/NOTIFY benchmarks? Sailesh Krishnamurthy <sailesh@cs.berkeley.edu>
Re: LISTEN/NOTIFY benchmarks? Sean Chittenden <sean@chittenden.org>
Re: LISTEN/NOTIFY benchmarks? Sailesh Krishnamurthy <sailesh@cs.berkeley.edu>
Re: LISTEN/NOTIFY benchmarks? Sean Chittenden <sean@chittenden.org>
Re: LISTEN/NOTIFY benchmarks? Sailesh Krishnamurthy <sailesh@cs.berkeley.edu>
On Tue, Apr 29, 2003 at 06:21:15PM -0400, Tom Lane wrote: > prashanth@jibenetworks.com writes: > > If the listening backend had registered tens of thousands of LISTENs, > > it would be sent an equivalent number of signals during a single run > > of AtCommit_Notify(). > > Not unless the notifier had notified all tens of thousands of condition > names in a single transaction. Unfortunately, that is a possibility in our application. We are now working around this non-scalability. Regardless, it would seem redundant to send more than one SIG_USR2 to the recipient backend in that loop. -- prashanth
В списке pgsql-hackers по дате отправления