)]}'
{
  "commit": "3b6e1be4391d96e81cee022f77f7bab85d51cf4e",
  "tree": "ea3ac43c00b15fed50fa3f0ee9f4be0900bdb7da",
  "parents": [
    "e869bfb4141ece8bc180fc4faeeaa07c4e87f53f"
  ],
  "author": {
    "name": "Eric Biggers",
    "email": "ebiggers@google.com",
    "time": "Tue Dec 17 03:54:56 2024 +0000"
  },
  "committer": {
    "name": "Boringssl LUCI CQ",
    "email": "boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com",
    "time": "Mon Jan 06 14:14:57 2025 -0800"
  },
  "message": "Add VAES + AVX2 optimized AES-GCM\n\nAdd a VAES-optimized AES-GCM implementation that is optimized for AMD\nZen 3 processors, using AVX2 instead of AVX512 / AVX10.  With AVX2 only\n16 vector registers are available and some instructions are missing,\nwhich is inconvenient and makes the code not easily sharable with the\nAVX512 / AVX10 version.  However, using VAES still gives a significant\nperformance improvement, about 80-85% on long messages as shown by the\nfollowing tables which show the change in AES-256-GCM throughput in MB/s\non a Zen 3 \"Milan\" processor for various message lengths in bytes.\n\nEncryption:\n\n            | 16384 |  4096 |  4095 |  1420 |   512 |   500 |\n    --------+-------+-------+-------+-------+-------+-------+\n    Before  |  3955 |  3749 |  3597 |  3054 |  2411 |  2038 |\n    After   |  7128 |  6631 |  5975 |  4788 |  3807 |  2676 |\n\n            |   300 |   200 |    64 |    63 |    16 |\n    --------+-------+-------+-------+-------+-------+\n    Before  |  1757 |  1405 |   856 |   602 |   356 |\n    After   |  1885 |  1430 |   940 |   593 |   381 |\n\nDecryption:\n\n            | 16384 |  4096 |  4095 |  1420 |   512 |   500 |\n    --------+-------+-------+-------+-------+-------+-------+\n    Before  |  3962 |  3774 |  3593 |  2978 |  2510 |  1998 |\n    After   |  7378 |  6836 |  6282 |  4826 |  3868 |  2753 |\n\n            |   300 |   200 |    64 |    63 |    16 |\n    --------+-------+-------+-------+-------+-------+\n    Before  |  1742 |  1428 |   856 |   535 |   383 |\n    After   |  1940 |  1534 |   940 |   573 |   383 |\n\nChange-Id: I583dd6b48b81ab3c6df51bfe8729366cad500537\nReviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/74368\nReviewed-by: David Benjamin \u003cdavidben@google.com\u003e\nCommit-Queue: David Benjamin \u003cdavidben@google.com\u003e\n",
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