| From: | Jim Nasby <Jim(dot)Nasby(at)BlueTreble(dot)com> |
|---|---|
| To: | Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>, Pradeep <pgundala(at)avineonindia(dot)com> |
| Cc: | "pgsql-general(at)postgresql(dot)org" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: PostgreSQL Database performance |
| Date: | 2016-09-07 22:33:58 |
| Message-ID: | c7b7211e-0feb-535b-741f-dd4d962be0f1@BlueTreble.com |
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| Thread: | |
| Lists: | pgsql-general |
On 9/6/16 2:08 PM, Scott Marlowe wrote:
>> checkpoint_completion_target = 0.9
> Too high of a checkpoint completion target may cause buffers to get
> written out more often than needed. but it varies based on load etc.
The odds on that don't seem to be terribly high. Even if that is a
common occurrence if it's enough to make a difference then you're
already close to the limits of your IO, and if that's true then you
definitely want to spread the checkpoint out over a longer interval.
--
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
Data in Trouble? Get it in Treble! http://BlueTreble.com
855-TREBLE2 (855-873-2532) mobile: 512-569-9461
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