)]}'
{
  "commit": "5365ad8aa6200a4c78f61df07204ad942a54e63f",
  "tree": "9edacb07c6f8016f72061f718569d5fcbb312935",
  "parents": [
    "9a195d91def4257b7b796b201b0be861dd6a06b9"
  ],
  "author": {
    "name": "Sameer Agarwal",
    "email": "sameeragarwal@google.com",
    "time": "Sun Feb 12 11:45:48 2017 -0800"
  },
  "committer": {
    "name": "Sameer Agarwal",
    "email": "sameeragarwal@google.com",
    "time": "Sun Feb 12 12:04:30 2017 -0800"
  },
  "message": "A hacky fix for the Eigen::FullPivLU changes.\n\nChanges in Eigen\u0027s implementation for FullPivLU significantly\ndegraded the performance of the line search as reported by Weiguang.\n\nWe do not completely understand what is going on, as Eigen\u0027s changes\nseem sane. So for now, this change explicitly works around the\nchanges made by Eigen to restore the performance of the line search.\n\nFiguring out the underlying problem and fixing it remains an open\nissue.\n\nhttps://github.com/ceres-solver/ceres-solver/issues/248\n\nChange-Id: I9993d73a09dc990ab567ce6bc447f16eac74abec\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "13bf8edeee6972b5f308095ce184a3d9e5cc09ae",
      "old_mode": 33188,
      "old_path": "internal/ceres/polynomial.cc",
      "new_id": "aef17bbc5ca33ee9bd8f62af84d76fd33ba93691",
      "new_mode": 33188,
      "new_path": "internal/ceres/polynomial.cc"
    }
  ]
}