| From: | Bertrand Drouvot <bertranddrouvot(dot)pg(at)gmail(dot)com> |
|---|---|
| To: | Michael Paquier <michael(at)paquier(dot)xyz> |
| Cc: | David Rowley <dgrowleyml(at)gmail(dot)com>, Ranier Vilela <ranier(dot)vf(at)gmail(dot)com>, Peter Smith <smithpb2250(at)gmail(dot)com>, Peter Eisentraut <peter(at)eisentraut(dot)org>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: define pg_structiszero(addr, s, r) |
| Date: | 2024-11-14 10:09:49 |
| Message-ID: | ZzXMbY+1BPEvcEnY@ip-10-97-1-34.eu-west-3.compute.internal |
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| Lists: | pgsql-hackers |
Hi,
On Thu, Nov 14, 2024 at 09:27:06AM +0900, Michael Paquier wrote:
> Makes sense to me to just do that, with a first < 8 loop, and a second
> for the 8~63 range.
Thanks for looking at it!
> There is also a "cant'" in the last size_t check. Simple typo.
Please find attached v12, with more comments and comments changes to explain
the multiple cases (for safety) and phases (for efficiency).
Regards,
--
Bertrand Drouvot
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com
| Attachment | Content-Type | Size |
|---|---|---|
| v12-0001-Optimize-pg_memory_is_all_zeros.patch | text/x-diff | 5.5 KB |
| v12-0002-Make-use-of-pg_memory_is_all_zeros-in-PageIsVeri.patch | text/x-diff | 1.4 KB |
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