From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
---|---|
To: | Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com> |
Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: Avoid full page images in streaming replication? |
Date: | 2015-10-22 23:27:20 |
Message-ID: | 20151022232720.GV3391@alvherre.pgsql |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-hackers |
Jim Nasby wrote:
> On 10/22/15 5:53 PM, Alvaro Herrera wrote:
> >Jim Nasby wrote:
> >
> >>But yes, this is all very hand-wavy without any actual data on what
> >>percentage of the WAL stream is FPIs. Looks like pageinspect doesn't work
> >>for WAL... does anyone have a script/tool that breaks out what percentage of
> >>a WAL file is FPIs?
> >
> >pg_xlogdump -z
>
> Hrm, any option for 9.4? I was hoping to get numbers from some real
> workloads...
You can run the new one in old pg_xlog ...
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
From | Date | Subject | |
---|---|---|---|
Next Message | Amit Langote | 2015-10-22 23:32:38 | Re: ATT_FOREIGN_TABLE and ATWrongRelkindError() |
Previous Message | David Fetter | 2015-10-22 23:26:10 | Re: Making tab-complete.c easier to maintain |