)]}'
{
  "commit": "5a3c7ab1ea9adcdf93b2cb5018a48cc5538c7368",
  "tree": "7190d52648c0571521847e00312b7ba23a3e7494",
  "parents": [
    "35ce88dccb4bbdeb6a6bcc1c01d9842565d7123c"
  ],
  "author": {
    "name": "dmaclach",
    "email": "dmaclach@google.com",
    "time": "Mon Dec 11 12:19:34 2017 -0800"
  },
  "committer": {
    "name": "Copybara-Service",
    "email": "copybara-piper@google.com",
    "time": "Mon Dec 11 12:21:13 2017 -0800"
  },
  "message": "Remove hyperthreading multiplier to improve performance.\n\nTests on my local machine show that the Hyperthreading multiplier is significantly hurting our builds times. Running with 8 logical cores is 11% faster than running with 4.8 cores when doing builds on my Mac.\n\nmacOS 10.12\nMacBookPro 2017 (1 CPU, 4 core, 8 hyperthreaded)\n\n1434.259 with --jobs \u003d 5\n1274.459 with --jobs \u003d 8\n\nI\u0027ll do some similar tests on Linux to see if it makes sense there.\n\nPiperOrigin-RevId: 178654477\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "3cde7f2e647a2c5c4422886d3b73c357792cc4fd",
      "old_mode": 33188,
      "old_path": "src/main/java/com/google/devtools/build/lib/actions/LocalHostResourceManagerDarwin.java",
      "new_id": "abaa7f904ec3924c12ebdd2a57fec971fdaaebe4",
      "new_mode": 33188,
      "new_path": "src/main/java/com/google/devtools/build/lib/actions/LocalHostResourceManagerDarwin.java"
    }
  ]
}