Postgres Pro
Downloads
Home   >   mailing lists

Re: Delay locking partitions during INSERT and UPDATE - Mailing list pgsql-hackers

From Tomas Vondra
Subject Re: Delay locking partitions during INSERT and UPDATE
Date
Msg-id 20947de7-ed29-c640-0b40-d62598749778@2ndquadrant.com
Whole thread Raw
In response to Re: Delay locking partitions during INSERT and UPDATE  (John Naylor <john.naylor@2ndquadrant.com>)
Responses Re: Delay locking partitions during INSERT and UPDATE  (John Naylor <john.naylor@2ndquadrant.com>)
List pgsql-hackers
Tree view 
On 1/24/19 9:50 PM, John Naylor wrote:
> On Wed, Jan 23, 2019 at 7:56 PM David Rowley
> <david.rowley@2ndquadrant.com> wrote:
>> On Thu, 24 Jan 2019 at 13:38, John Naylor <john.naylor@2ndquadrant.com> wrote:
>>> Hmm, now instead of an 85x speedup over master in the 10k partition
>>> case, I only get 20x. Anyone else see this?
>>
>> What's it like with fsync off?
> 
> No change. Just in case, I tried git bisect and also recreated the
> cluster, but never got the same performance as my first test, so not
> sure what happened.

I can still see about the same performance as before (on both clusters).

regards

-- 
Tomas Vondra                  http://www.2ndQuadrant.com
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

pgsql-hackers by date:

Previous
From: Jeremy Finzel
Date:
Subject: Implicit timezone conversion replicating from timestamp to timestamptz?
Next
From: Robert Haas
Date:
Subject: Re: Protect syscache from bloating with negative cache entries