Postgres Pro
Downloads
Home   >   mailing lists

Re: testing HS/SR - 1 vs 2 performance - Mailing list pgsql-hackers

From Tom Lane
Subject Re: testing HS/SR - 1 vs 2 performance
Date
Msg-id 3963.1272213837@sss.pgh.pa.us
Whole thread Raw
In response to Re: testing HS/SR - 1 vs 2 performance  (Simon Riggs <simon@2ndQuadrant.com>)
Responses Re: testing HS/SR - 1 vs 2 performance  (Simon Riggs <simon@2ndQuadrant.com>)
List pgsql-hackers
Tree view 
Simon Riggs <simon@2ndQuadrant.com> writes:
> [ v2 patch ]

BTW, while I'm looking at this, why bother with the separate
KnownAssignedXidsValid[] array?  Wouldn't it be cheaper
(certainly so in storage, probably so in access/update times)
to have just the KnownAssignedXids[] array and store
InvalidTransactionId in unused entries?
        regards, tom lane

pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Re: testing HS/SR - 1 vs 2 performance
Next
From: Simon Riggs
Date:
Subject: Re: testing HS/SR - 1 vs 2 performance