| From: | "Chiranmoy(dot)Bhattacharya(at)fujitsu(dot)com" <Chiranmoy(dot)Bhattacharya(at)fujitsu(dot)com> |
|---|---|
| To: | Nathan Bossart <nathandbossart(at)gmail(dot)com> |
| Cc: | "Malladi, Rama" <ramamalladi(at)hotmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>, "Ragesh(dot)Hajela(at)fujitsu(dot)com" <Ragesh(dot)Hajela(at)fujitsu(dot)com>, Salvatore Dipietro <dipiets(at)amazon(dot)com>, "Devanga(dot)Susmitha(at)fujitsu(dot)com" <Devanga(dot)Susmitha(at)fujitsu(dot)com> |
| Subject: | Re: [PATCH] SVE popcount support |
| Date: | 2025-03-23 17:11:07 |
| Message-ID: | OSBPR01MB2664C2B16C25297F6053425D97A52@OSBPR01MB2664.jpnprd01.prod.outlook.com |
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| Lists: | pgsql-hackers |
Looks good, the code is more readable now.
> For both Neon and SVE, I do see improvements with looping over 4
> registers at a time, so IMHO it's worth doing so even if it performs the
> same as 2-register blocks on some hardware.
There was no regression on Graviton 3 when using the 4-register version so can keep it.
-Chiranmoy
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