)]}'
{
  "commit": "c0b7dac66edde45b8da80918f5b5b62d1e766a0c",
  "tree": "7f19cfd89b2ea3f1117b162bdfde6811f45c1b16",
  "parents": [
    "abdb2278d2b65ae87bee3121be83322e4219b396"
  ],
  "author": {
    "name": "Hugo Landau",
    "email": "hlandau@openssl.org",
    "time": "Thu Mar 10 09:38:09 2022 +0000"
  },
  "committer": {
    "name": "Pauli",
    "email": "ppzgs1@gmail.com",
    "time": "Sun Mar 13 11:43:26 2022 +1100"
  },
  "message": "EVP_MD performance fix (refcount cache contention)\n\nPartial fix for #17064. Avoid excessive writes to the cache line\ncontaining the refcount for an EVP_MD object to avoid extreme\ncache contention when using a single EVP_MD at high frequency on\nmultiple threads. This changes performance in 3.0 from being double\nthat of 1.1 to only slightly higher than that of 1.1.\n\nReviewed-by: Tim Hudson \u003ctjh@openssl.org\u003e\nReviewed-by: Tomas Mraz \u003ctomas@openssl.org\u003e\nReviewed-by: Paul Dale \u003cpauli@openssl.org\u003e\n(Merged from https://github.com/openssl/openssl/pull/17857)\n",
  "tree_diff": [
    {
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      "new_path": "crypto/evp/m_sigver.c"
    },
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}