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From: Mladen Gogala <gogala.mladen@gmail.com>
To: pgsql-admin@lists.postgresql.org
Subject: Re: Postgresql 14 performance
Date: Sun, 21 Aug 2022 21:16:29 -0400
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On 8/21/22 20:46, Jeff Janes wrote:
>
> You can see there that little time was spent reading data, so that 
> explains why repeating the query didn't make it much faster due to 
> caching.  The time isn't spent reading data, but doing CPU work on 
> data already in memory.
>
> Cheers,
>
> Jeff

Agreed. The "perf top" output produced by Kenny definitely indicates 
that. That's precisely why I concentrated on JIT. Anything else would 
give us a slim chance of increasing the query speed.

Regards

-- 
Mladen Gogala
Database Consultant
Tel: (347) 321-1217
https://dbwhisperer.wordpress.com

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