Horton

Re: better atomics - v0.2

Peter Eisentraut <peter_e@gmx.net>

View thread View on postgr.es
From: Peter Eisentraut <peter_e@gmx.net>
To: Andres Freund <andres@2ndquadrant.com>
Cc: Robert Haas <robertmhaas@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, Peter Geoghegan <pg@heroku.com>, Pg Hackers <pgsql-hackers@postgresql.org>, Ants Aasma <ants@cybertec.at>
Date: 2013-12-21T13:55:28Z
Lists: pgsql-hackers 
This patch didn't make it out of the 2013-11 commit fest.  You should
move it to the next commit fest (probably with an updated patch)
before January 15th.

Commits

  1. Avoid the use of a separate spinlock to protect a LWLock's wait queue.

  2. Improve LWLock scalability.

  3. Reduce the number of semaphores used under --disable-spinlocks.

  4. Alter the configure script to fail immediately if the C compiler does not