)]}'
{
  "log": [
    {
      "commit": "6f198e3fde6fe0009c1f333c283c6d1cb4fa9b55",
      "tree": "3ee9f75dd0906be955de1bceab1a397aecf1a201",
      "parents": [
        "a840d6155dd3332a1bef42facb1a5d2a3a524c5e"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Nov 03 11:15:04 2016 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Mon Nov 07 12:57:49 2016 -0800"
      },
      "message": "Add forwarding address checks for X86, arm, arm64\n\nAdded to READ_BARRIER_MARK_REG.\n\nBug: 30162165\n\nTest: test-art-host, test-art-target\n\nChange-Id: I15cf0d51ed3d22fa401e80ffac3877d61593527c\n"
    },
    {
      "commit": "1cf194f055b7152fde817787fcdadeea1fb1067c",
      "tree": "b47da959af7a1f0138d92fe9989ae299462fed96",
      "parents": [
        "77a0e4541a29c26dba21ed8c1ed1c29ef8d0ce4c"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Tue Nov 01 20:13:24 2016 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Nov 02 14:27:06 2016 -0700"
      },
      "message": "Check for forwarding address in READ_BARRIER_MARK_REG\n\nWhen the object is in the from-space, the mark bit is not set.\nIn this case, we can also check the lock word for being a forwarding\naddress. The forwarding address case happens around 25% of the time.\nThis CL adds the case for forwarding address lock words to\nREAD_BARRIER_MARK_REG.\n\nReduces total read barriers reaching runtime on ritzperf:\nSlow paths: 20758783 -\u003e 15457783\n\nDeleted the mark bit check in MarkFromReadBarrier since most of the\ncallers check the bit now.\n\nPerf:\nReadBarrier::Mark: 2.59% -\u003e 2.12%\nart_quick_read_barrier_mark_reg01: 0.79% -\u003e 0.78%\nart_quick_read_barrier_mark_reg00: 0.54% -\u003e 0.50%\nart_quick_read_barrier_mark_reg02: 0.31% -\u003e 0.25%\n\nOnly X86_64 for now, will do other archs after.\n\nBug: 30162165\n\nTest: test-art-host\n\nChange-Id: Ie7289d684d0e37a887943d77710092e380457860\n"
    },
    {
      "commit": "36a270ae4f288e49493432b7128f899ad579849e",
      "tree": "99f134bbfe111b1c42b1b0c19d8b65175a3e6fc8",
      "parents": [
        "89bd8358c0a69e8cd6456d81d88ef366e261f732"
      ],
      "author": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Thu Jul 28 18:08:51 2016 -0700"
      },
      "committer": {
        "name": "Mathieu Chartier",
        "email": "mathieuc@google.com",
        "time": "Wed Aug 03 15:46:18 2016 -0700"
      },
      "message": "Change one read barrier bit to mark bit\n\nOptimization to help slow path performance. When the GC marks an\nobject through the read barrier slow path. The GC sets the mark bit\nin the lock word of that reference. This bit is checked from the\nassembly entrypoint the common case is that it is set. If the bit is\nset, the read barrier knows the object is already marked and there is\nno work to do.\n\nTo prevent dirty pages in zygote and image, the bit is set by the\nimage writer and zygote space creation.\n\nEAAC score (lower is better):\nN9: 777 -\u003e 700 (average 31 of runs)\nN6P (960000 mhz): 1737.48 -\u003e 1442.31 (average of 25 runs)\n\nBug: 30162165\nBug: 12687968\n\nTest: N9, N6P booting, test-art-host, test-art-target all with CC\n\nChange-Id: Iae0cacfae221e33151d3c0ab65338d1c822ab63d\n"
    },
    {
      "commit": "311fdf52f7d33b988130d07b3d3a86eb148051ca",
      "tree": "107308e59eb8cf528ff74029c3c180ca2a7242a6",
      "parents": [
        "a69e790ad9751807d4a660bb4432b7ea79f0ad3b"
      ],
      "author": {
        "name": "Igor Murashkin",
        "email": "iam@google.com",
        "time": "Fri Jul 22 15:59:16 2016 -0700"
      },
      "committer": {
        "name": "Igor Murashkin",
        "email": "iam@google.com",
        "time": "Mon Jul 25 15:15:03 2016 -0700"
      },
      "message": "runtime: Refactor asm_support to be auto-generated (mostly)\n\nUsage:\n\n* If the defines are no longer up to date, re-run generate-asm-support\n\n* To add a new field:\n--- Edit one of the offset_ or constant def files.\n--- Rebuild cpp-define-generator and re-run generate-asm-support\n\nChange-Id: I772430fcf1ad9af40898ebb453848f8412612386\nTODO: Integrate this into the build somehow\nTODO: Account for 32 vs 64-bit and read barrier vs no read barrier\n"
    }
  ]
}