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Sun, 06 Apr 2025 07:07:15 +0000 Content-Type: multipart/mixed; boundary="===============1234429022345094889==" MIME-Version: 1.0 From: John Naylor To: pgsql-committers@lists.postgresql.org Subject: pgsql: Compute CRC32C using AVX-512 instructions where available X-Auto-Response-Suppress: All Auto-Submitted: auto-generated Message-Id: Date: Sun, 06 Apr 2025 07:07:15 +0000 List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --===============1234429022345094889== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Q29tcHV0ZSBDUkMzMkMgdXNpbmcgQVZYLTUxMiBpbnN0cnVjdGlvbnMgd2hlcmUgYXZhaWxhYmxl CgpUaGUgcHJldmlvdXMgaW1wbGVtZW50YXRpb24gb2YgQ1JDMzJDIG9uIHg4NiByZWxpZWQgb24g dGhlIG5hdGl2ZQpDUkMzMiBpbnN0cnVjdGlvbiBmcm9tIHRoZSBTU0UgNC4yIGV4dGVuc2lvbiwg d2hpY2ggb3BlcmF0ZXMgb24KdXAgdG8gOCBieXRlcyBhdCBhIHRpbWUuIFdlIGNhbiBnZXQgYSBz dWJzdGFudGlhbCBzcGVlZHVwIGJ5IHVzaW5nCmNhcnJ5bGVzcyBtdWx0aXBsaWNhdGlvbiBvbiBT SU1EIHJlZ2lzdGVycywgcHJvY2Vzc2luZyA2NCBieXRlcyBwZXIKbG9vcCBpdGVyYXRpb24uIFNo b3J0ZXIgaW5wdXRzIGZhbGwgYmFjayB0byBvcmRpbmFyeSBDUkMgaW5zdHJ1Y3Rpb25zLgpPbiBJ bnRlbCBUaWdlciBMYWtlIGhhcmR3YXJlICgyMDIwKSwgQ1JDIGlzIG5vdyA1MCUgZmFzdGVyIGZv ciBpbnB1dHMKYmV0d2VlbiA2NCBhbmQgMTEyIGJ5dGVzLCBhbmQgM3ggZmFzdGVyIGZvciAyNTYg Ynl0ZXMuCgpUaGUgVlBDTE1VTFFEUSBpbnN0cnVjdGlvbiBvbiA1MTItYml0IHJlZ2lzdGVycyBo YXMgYmVlbiBhdmFpbGFibGUKb24gSW50ZWwgaGFyZHdhcmUgc2luY2UgMjAxOSBhbmQgQU1EIHNp bmNlIDIwMjIuIFRoZXJlIGlzIGFuIG9sZGVyCnZhcmlhbnQgZm9yIDEyOC1iaXQgcmVnaXN0ZXJz LCBidXQgYXQgbGVhc3Qgb24gWmVuIDIgaXQgcGVyZm9ybXMgd29yc2UKdGhhbiBub3JtYWwgQ1JD IGluc3RydWN0aW9ucyBmb3Igc2hvcnQgaW5wdXRzLgoKV2UgbXVzdCBub3cgZG8gYSBydW50aW1l IGNoZWNrLCBldmVuIGZvciBidWlsZHMgdGhhdCB0YXJnZXQgU1NFCjQuMi4gVGhpcyBkb2Vzbid0 IG1hdHRlciBpbiBwcmFjdGljZSBmb3IgV0FMIChhcmd1YWJseSB0aGUgbW9zdApjcml0aWNhbCBj YXNlKSwgYmVjYXVzZSBzaW5jZSBjb21taXQgZTI4MDllM2ExIHRoZSBmaW5hbCBjb21wdXRhdGlv bgp3aXRoIHRoZSAyMC1ieXRlIFdBTCBoZWFkZXIgaXMgaW5saW5lZCBhbmQgdW5yb2xsZWQgd2hl biB0YXJnZXRpbmcKdGhhdCBleHRlbnNpb24uIENvbXBhcmVkIHdpdGggdHdvIGRpcmVjdCBmdW5j dGlvbiBjYWxscywgdGVzdGluZwpzaG93ZWQgZXF1YWwgb3Igc2xpZ2h0bHkgZmFzdGVyIHBlcmZv cm1hbmNlIGluIHBlcmZvcm1pbmcgYW4gaW5kaXJlY3QKZnVuY3Rpb24gY2FsbCBvbiBzZXZlcmFs IGRvemVuIGJ5dGVzIGZvbGxvd2VkIGJ5IGlubGluZWQgaW5zdHJ1Y3Rpb25zCm9uIGNvbnN0YW50 IGlucHV0IG9mIDIwIGJ5dGVzLgoKVGhlIE1JVC1saWNlbnNlZCBpbXBsZW1lbnRhdGlvbiB3YXMg Z2VuZXJhdGVkIHdpdGggdGhlICJnZW5lcmF0ZSIKcHJvZ3JhbSBmcm9tCgpodHRwczovL2dpdGh1 Yi5jb20vY29yc2l4L2Zhc3QtY3JjMzIvCgpCYXNlZCBvbjogIkZhc3QgQ1JDIENvbXB1dGF0aW9u IGZvciBHZW5lcmljIFBvbHlub21pYWxzIFVzaW5nIFBDTE1VTFFEUQpJbnN0cnVjdGlvbiIgVi4g R29wYWwsIEUuIE96dHVyaywgZXQgYWwuLCAyMDA5CgpDby1hdXRob3JlZC1ieTogUmFnaHV2ZWVy IERldnVsYXBhbGxpIDxyYWdodXZlZXIuZGV2dWxhcGFsbGlAaW50ZWwuY29tPgpDby1hdXRob3Jl ZC1ieTogUGF1bCBBbW9uc29uIDxwYXVsLmQuYW1vbnNvbkBpbnRlbC5jb20+ClJldmlld2VkLWJ5 OiBOYXRoYW4gQm9zc2FydCA8bmF0aGFuZGJvc3NhcnRAZ21haWwuY29tPgpSZXZpZXdlZC1ieTog QW5kcmVzIEZyZXVuZCA8YW5kcmVzQGFuYXJhemVsLmRlPiAoZWFybGllciB2ZXJzaW9uKQpSZXZp ZXdlZC1ieTogTWF0dGhldyBTdGVycmV0dCA8bWF0dGhld3N0ZXJyZXR0MkBnbWFpbC5jb20+IChl YXJsaWVyIHZlcnNpb24pClRlc3RlZC1ieTogUmFnaHV2ZWVyIERldnVsYXBhbGxpIDxyYWdodXZl ZXIuZGV2dWxhcGFsbGlAaW50ZWwuY29tPgpUZXN0ZWQtYnk6IERhdmlkIFJvd2xleSA8PGRncm93 bGV5bWxAZ21haWwuY29tPj4gKGVhcmxpZXIgdmVyc2lvbikKRGlzY3Vzc2lvbjogaHR0cHM6Ly9w b3N0Z3IuZXMvbS9CTDFQUjExTUI1MzA0MDFGQTdFOUIxQ0E0MzJDRjlEQzNEQzE5MkBCTDFQUjEx TUI1MzA0Lm5hbXByZDExLnByb2Qub3V0bG9vay5jb20KRGlzY3Vzc2lvbjogaHR0cHM6Ly9wb3N0 Z3IuZXMvbS9QSDhQUjExTUI4Mjg2OUZGNzQxREZBNEU5QTAyOUZGMTNGQkY3MkBQSDhQUjExTUI4 Mjg2Lm5hbXByZDExLnByb2Qub3V0bG9vay5jb20KCkJyYW5jaAotLS0tLS0KbWFzdGVyCgpEZXRh aWxzCi0tLS0tLS0KaHR0cHM6Ly9naXQucG9zdGdyZXNxbC5vcmcvcGcvY29tbWl0ZGlmZi8zYzZl OGMxMjM4OTY1ODRmMWJlMWZlNjlhYWY2OGRjYjVlYjA5NGQ1CgpNb2RpZmllZCBGaWxlcwotLS0t LS0tLS0tLS0tLQpjb25maWcvYy1jb21waWxlci5tNCAgICAgICAgICAgICAgICAgIHwgMzcgKysr KysrKysrKysrKysKY29uZmlndXJlICAgICAgICAgICAgICAgICAgICAgICAgICAgICB8IDkxICsr KysrKysrKysrKysrKysrKysrKysrKysrKysrLS0tLQpjb25maWd1cmUuYWMgICAgICAgICAgICAg ICAgICAgICAgICAgIHwgNDEgKysrKysrKysrKy0tLS0tCm1lc29uLmJ1aWxkICAgICAgICAgICAg ICAgICAgICAgICAgICAgfCA1OCArKysrKysrKysrKysrKysrKy0tLS0Kc3JjL2luY2x1ZGUvcGdf Y29uZmlnLmguaW4gICAgICAgICAgICB8ICAzICsrCnNyYy9pbmNsdWRlL3BvcnQvcGdfY3JjMzJj LmggICAgICAgICAgfCAzOSArKysrKysrKysrKy0tLS0Kc3JjL3BvcnQvbWVzb24uYnVpbGQgICAg ICAgICAgICAgICAgICB8ICAxICsKc3JjL3BvcnQvcGdfY3JjMzJjX3NzZTQyLmMgICAgICAgICAg ICB8IDk0ICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKystCnNyYy9wb3J0L3BnX2Ny YzMyY19zc2U0Ml9jaG9vc2UuYyAgICAgfCA3NSArKysrKysrKysrKysrKysrKysrKysrLS0tLS0t CnNyYy90ZXN0L3JlZ3Jlc3MvZXhwZWN0ZWQvc3RyaW5ncy5vdXQgfCAyNCArKysrKysrKysKc3Jj L3Rlc3QvcmVncmVzcy9zcWwvc3RyaW5ncy5zcWwgICAgICB8ICA1ICsrCjExIGZpbGVzIGNoYW5n ZWQsIDQwOCBpbnNlcnRpb25zKCspLCA2MCBkZWxldGlvbnMoLSkKCg== --===============1234429022345094889==--