Re: pgbench - add pseudo-random permutation function

Fabien COELHO <coelho@cri.ensmp.fr>

From: Fabien COELHO <coelho@cri.ensmp.fr>
To: David Steele <david@pgmasters.net>
Cc: Alvaro Herrera <alvherre@2ndquadrant.com>, Peter Eisentraut <peter.eisentraut@2ndquadrant.com>, Tomas Vondra <tomas.vondra@2ndquadrant.com>, Thomas Munro <thomas.munro@gmail.com>, Hironobu SUZUKI <hironobu@interdb.jp>, PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Date: 2020-07-09T06:57:01Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. pgbench: Function to generate random permutations.

  2. Add basic support for using the POPCNT and SSE4.2s LZCNT opcodes

  3. Further improve code for probing the availability of ARM CRC instructions.

Attachments

>> I don't think we should boot this patch.  I don't think I would be able
>> to get this over the commit line in this CF, but let's not discard it.
>
> Understood. I have moved the patch to the 2020-07 CF in Needs Review state.

Attached v19 is a rebase, per cfbot.

-- 
Fabien.