| From: | tgl(at)postgresql(dot)org (Tom Lane) |
|---|---|
| To: | pgsql-committers(at)postgresql(dot)org |
| Subject: | pgsql: Replace the KnownAssignedXids hash table with a sorted-array data |
| Date: | 2010-04-28 00:09:05 |
| Message-ID: | 20100428000905.548927541D0@cvs.postgresql.org |
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| Lists: | pgsql-committers |
Log Message:
-----------
Replace the KnownAssignedXids hash table with a sorted-array data structure,
and be more tense about the locking requirements for it, to improve performance
in Hot Standby mode. In passing fix a few bugs and improve a number of
comments in the existing HS code.
Simon Riggs, with some editorialization by Tom
Modified Files:
--------------
pgsql/src/backend/access/transam:
twophase.c (r1.60 -> r1.61)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/transam/twophase.c?r1=1.60&r2=1.61)
pgsql/src/backend/storage/ipc:
procarray.c (r1.66 -> r1.67)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/storage/ipc/procarray.c?r1=1.66&r2=1.67)
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