Re: [PATCH] Hex-coding optimizations using SVE on ARM.

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>

To: David Rowley <dgrowleyml@gmail.com>

Cc: John Naylor <johncnaylorls@gmail.com>, Nathan Bossart <nathandbossart@gmail.com>, "Chiranmoy.Bhattacharya@fujitsu.com" <Chiranmoy.Bhattacharya@fujitsu.com>, "Devanga.Susmitha@fujitsu.com" <Devanga.Susmitha@fujitsu.com>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>, "Ragesh.Hajela@fujitsu.com" <Ragesh.Hajela@fujitsu.com>

Date: 2025-01-16T01:27:19Z

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 →

Optimize hex_encode() and hex_decode() using SIMD.
- ec8719ccbfcd 19 (unreleased) landed
Speed up hex_encode with bytewise lookup
- e24d77080b36 18.0 landed

David Rowley <dgrowleyml@gmail.com> writes:
> I agree that the evidence you (John) gathered is enough reason to use memcpy().

Okay ... doesn't quite match my intuition, but intuition is a poor
guide to such things.

			regards, tom lane