Re: [PERFORM] Client Server performance & UDS - Mailing list pgsql-performance

From Karl Czajkowski
Subject Re: [PERFORM] Client Server performance & UDS
Date
Msg-id 20170530202046.GE7575@moraine.isi.edu
Whole thread Raw
In response to Re: [PERFORM] Client Server performance & UDS  (Rick Otten <rottenwindfish@gmail.com>)
List pgsql-performance
On May 30, Rick Otten modulated:

> If your clients are keeping persistent connections open to the
> database, and the latency you are experiencing is within the
> transaction itself, you might look at disk I/O for your WAL (write
> ahead logs) and take a closer look at WAL and checkpoint tuning.
>

Also, if you are doing similar operations over and over with literal
data in them, you may have more query planner overhead per transaction
than if you prepared statements when opening the persistent connection
and then simply executed the statements over and over with different
parameters for each request.


Karl


pgsql-performance by date:

Previous
From: Justin Pryzby
Date:
Subject: [PERFORM] Re: join estimate of subqueries with range conditions and constraintexclusion
Next
From: Nikolay Samokhvalov
Date:
Subject: Re: [PERFORM] Monitoring tool for Postgres Database