| From: | "Amonson, Paul D" <paul(dot)d(dot)amonson(at)intel(dot)com> |
|---|---|
| To: | Andres Freund <andres(at)anarazel(dot)de> |
| Cc: | "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org>, Nathan Bossart <nathandbossart(at)gmail(dot)com>, "Shankaran, Akash" <akash(dot)shankaran(at)intel(dot)com> |
| Subject: | RE: Proposal for Updating CRC32C with AVX-512 Algorithm. |
| Date: | 2024-06-12 21:46:19 |
| Message-ID: | BL1PR11MB530420CA393530170BADB49ADCC02@BL1PR11MB5304.namprd11.prod.outlook.com |
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| Lists: | pgsql-hackers |
> -----Original Message-----
> From: Andres Freund <andres(at)anarazel(dot)de>
> Sent: Wednesday, June 12, 2024 1:12 PM
> To: Amonson, Paul D <paul(dot)d(dot)amonson(at)intel(dot)com>
> FWIW, I tried the v2 patch on my Xeon Gold 5215 workstation, and dies early
> on with SIGILL:
Nice catch!!! I was testing the bit for the vpclmulqdq in EBX instead of the correct ECX register. New Patch attached. I added defines to make that easier to see those types of bugs rather than a simple index number. I double checked the others as well.
Paul
| Attachment | Content-Type | Size |
|---|---|---|
| 0001-v3-Feat-Add-AVX512-crc32c-algorithm-to-postgres.patch | application/octet-stream | 42.7 KB |
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