Re: JIT overhead slowdown - Mailing list pgsql-performance

From Andres Freund
Subject Re: JIT overhead slowdown
Date
Msg-id 20190118164254.p3p6gogijf3dh7q6@alap3.anarazel.de
Whole thread Raw
In response to JIT overhead slowdown  (Luis Carril <luis.carril@swarm64.com>)
Responses Re: JIT overhead slowdown  (Luis Carril <luis.carril@swarm64.com>)
Re: JIT overhead slowdown  (Justin Pryzby <pryzby@telsasoft.com>)
List pgsql-performance
Hi,

On 2019-01-18 14:12:23 +0000, Luis Carril wrote:
> Is this behavior expected? Is the cost function for jitting missing some circumstances?

The costing doesn't take the effect of overhead of repeated JITing in
each worker into account.  I could give you a test patch that does, if
you want to play around with it?

Greetings,

Andres Freund


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