postgres

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Files

Thomas Munro a40cff8956 Move RecoveryLockList into a hash table.

Standbys frequently need to release all locks held by a given xid.
Instead of searching one big list linearly, let's create one list
per xid and put them in a hash table, so we can find what we need
in O(1) time.

Earlier analysis and a prototype were done by David Rowley, though
this isn't his patch.

Back-patch all the way.

Author: Thomas Munro
Diagnosed-by: David Rowley, Andres Freund
Reviewed-by: Andres Freund, Tom Lane, Robert Haas
Discussion: https://postgr.es/m/CAEepm%3D1mL0KiQ2KJ4yuPpLGX94a4Ns_W6TL4EGRouxWibu56pA%40mail.gmail.com
Discussion: https://postgr.es/m/CAKJS1f9vJ841HY%3DwonnLVbfkTWGYWdPN72VMxnArcGCjF3SywA%40mail.gmail.com

2018-06-26 18:45:45 +12:00

buffer

Remove dubious micro-optimization in ckpt_buforder_comparator().

2018-01-10 15:50:54 -05:00

file

Fix memory leak in BufFileCreateShared().

2018-06-16 14:21:08 +09:00

freespace

Remove unnecessary BufferGetPage() calls in fsm_vacuum_page().

2018-03-29 12:44:19 -04:00

ipc

Move RecoveryLockList into a hash table.