)]}'
{
  "commit": "21f519d009b2123ad328e5f5e0f6523939519d6a",
  "tree": "6b3f48c5794e3b2cddb5e42471ededa02d1cc63a",
  "parents": [
    "0a30117489d9283e19fce95521785a833f91a7c4"
  ],
  "author": {
    "name": "William Rucklidge",
    "email": "wjr@google.com",
    "time": "Fri Mar 02 12:37:54 2018 -0800"
  },
  "committer": {
    "name": "William Rucklidge",
    "email": "wjr@google.com",
    "time": "Fri Mar 02 13:33:19 2018 -0800"
  },
  "message": "Improve threading in covariance.\n\nCovariance computation wants to do a triangular iteration but as a\nsingle loop. Right now it iterates over a square and does nothing half\nthe time, which is inefficient and has bad worst-case threading\nperformance. This adds a utility that allows waste-free linear iteration\nover a triangle.\n\nChange-Id: I881d5683c65882f87dc2b5f8449a855d22ace755\n",
  "tree_diff": [
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