Horton

Re: Parallel Seq Scan vs kernel read ahead

Soumyadeep Chakraborty <soumyadeep2007@gmail.com>

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From: Soumyadeep Chakraborty <soumyadeep2007@gmail.com>
To: robertmhaas@gmail.com, Thomas Munro <thomas.munro@gmail.com>, amit.kapila16@gmail.com
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2020-06-03T23:21:57Z
Lists: pgsql-hackers 
On Wed, Jun 3, 2020 at 3:18 PM Soumyadeep Chakraborty
<soumyadeep2007@gmail.com> wrote:
> Idk if that is a lesser evil than the workers
> being idle..probably not?

Apologies, I meant that the extra atomic fetches is probably a lesser
evil than the workers being idle.

Soumyadeep

Commits

  1. Allocate consecutive blocks during parallel seqscans