Simon Riggs 9b013dc238 Improve performance of replay of AccessExclusiveLocks ... A hot standby replica keeps a list of Access Exclusive locks for a top level transaction. These locks are released when the top level transaction ends. Searching of this list is O(N^2), and each transaction had to pay the price of searching this list for locks, even if it didn't take any AE locks itself. This patch optimizes this case by having the master server track which transactions took AE locks, and passes that along to the standby server in the commit/abort record. This allows the standby to only try to release locks for transactions which actually took any, avoiding the majority of the performance issue. Refactor MyXactAccessedTempRel into MyXactFlags to allow minimal additional cruft with this. Analysis and initial patch by David Rowley Author: David Rowley and Simon Riggs		2017-03-22 13:09:36 +00:00
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buffer	Revert unintentional change in increasing usage count during pin of buffers,	2017-03-20 18:48:46 +03:00
file	Create and use wait events for read, write, and fsync operations.	2017-03-18 07:43:01 -04:00
freespace	Update copyright via script for 2017	2017-01-03 13:48:53 -05:00
ipc	Improve performance of replay of AccessExclusiveLocks	2017-03-22 13:09:36 +00:00
large_object	Fix CatalogTupleInsert/Update abstraction for case of shared indstate.	2017-02-01 17:18:36 -05:00
lmgr	Spelling fixes in code comments	2017-03-14 12:58:39 -04:00
page	hash: Refactor bucket squeeze code.	2017-02-27 22:34:21 +05:30
smgr	Create and use wait events for read, write, and fsync operations.	2017-03-18 07:43:01 -04:00
Makefile	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00