| From: | Xiang Gao <Xiang(dot)Gao(at)arm(dot)com> |
|---|---|
| To: | Nathan Bossart <nathandbossart(at)gmail(dot)com> |
| Cc: | Michael Paquier <michael(at)paquier(dot)xyz>, Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
| Subject: | RE: CRC32C Parallel Computation Optimization on ARM |
| Date: | 2023-10-26 08:53:31 |
| Message-ID: | DB9PR08MB6991506A18EE4C99D8197653F5DDA@DB9PR08MB6991.eurprd08.prod.outlook.com |
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| Lists: | pgsql-hackers |
On Tue, 24 Oct, 2023 20:45:39PM -0500, Nathan Bossart wrote:
>I tried this. pg_waldump on 2 million ~8kB records took around 8.1 seconds
>without the patch and around 7.4 seconds with it (an 8% improvement).
>pg_waldump on 1 million ~16kB records took around 3.2 seconds without the
>patch and around 2.4 seconds with it (a 25% improvement).
Could you please provide details on how to generate these 8kB size or 16kB size data? Thanks!
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