)]}'
{
  "commit": "2667de81f3256c944b06abdf2c56c2f192fcb724",
  "tree": "d642156cfe0c52d2fb7ec1de4a2060018c8e3f8d",
  "parents": [
    "850bc73ffcc99cddfb52bc23217c60810c508853"
  ],
  "author": {
    "name": "Peter Zijlstra",
    "email": "a.p.zijlstra@chello.nl",
    "time": "Thu Sep 17 19:01:10 2009 +0200"
  },
  "committer": {
    "name": "Ingo Molnar",
    "email": "mingo@elte.hu",
    "time": "Thu Sep 17 22:08:26 2009 +0200"
  },
  "message": "perf_counter: Allow for a wakeup watermark\n\nCurrently we wake the mmap() consumer once every PAGE_SIZE of data\nand/or once event wakeup_events when specified.\n\nFor high speed sampling this results in too many wakeups wrt. the\nbuffer size, hence change this.\n\nWe move the default wakeup limit to 1/4-th the buffer size, and\nprovide for means to manually specify this limit.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "972f90d7a32f7660fa1ef2362c4904c4b3651d28",
      "old_mode": 33188,
      "old_path": "include/linux/perf_counter.h",
      "new_id": "6c1ef72ea501967e472b24efa54da5cf348cd5fe",
      "new_mode": 33188,
      "new_path": "include/linux/perf_counter.h"
    },
    {
      "type": "modify",
      "old_id": "fe0d1adde8042b375e572bfc2631fa75bb6ea1e2",
      "old_mode": 33188,
      "old_path": "kernel/perf_counter.c",
      "new_id": "29b73b6e81463d910040ceb5bd86797282309142",
      "new_mode": 33188,
      "new_path": "kernel/perf_counter.c"
    }
  ]
}