| From: | "Heikki Linnakangas" <heikki(at)enterprisedb(dot)com> |
|---|---|
| To: | "Bruce Momjian" <bruce(at)momjian(dot)us> |
| Cc: | "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Florian Pflug" <fgp(dot)phlo(dot)org(at)gmail(dot)com>, "Simon Riggs" <simon(at)2ndquadrant(dot)com>, "Pavan Deolasee" <pavan(dot)deolasee(at)gmail(dot)com>, "Gregory Stark" <stark(at)enterprisedb(dot)com>, "PostgreSQL-patches" <pgsql-patches(at)postgresql(dot)org> |
| Subject: | Re: HOT patch - version 15 |
| Date: | 2007-09-10 11:27:42 |
| Message-ID: | 46E52A2E.1050405@enterprisedb.com |
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| Thread: | |
| Lists: | pgsql-patches |
Heikki Linnakangas wrote:
> Explanations of the columns:
>
> HEAD: CVS HEAD
> HOT-pruned: CVS HEAD + HOT patch v15
> HOT: CVS HEAD + HOT patch v15, but with heap_page_prune_defrag short
> circuited to do nothing
> HOT-opt: CVS HEAD + HOT patch v15, but with static XidInMVCCSnapshot
> like in CVS HEAD
One correction: HOT-opt was also short circuited like HOT. IOW, HOT and
HOT-opt are the same, except for the static qualifier in XidInMVCCSnapshot
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
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