)]}'
{
  "commit": "bd2b5b12849a3446abad0b25e920f86f5480b309",
  "tree": "b0eacf6002f2015c0483390619a3f874bcb7e7d2",
  "parents": [
    "dc81081b2d9a6a9d64dad1bef1e5fc9fb660e53e"
  ],
  "author": {
    "name": "Peter Zijlstra",
    "email": "a.p.zijlstra@chello.nl",
    "time": "Wed Jun 10 13:40:57 2009 +0200"
  },
  "committer": {
    "name": "Ingo Molnar",
    "email": "mingo@elte.hu",
    "time": "Wed Jun 10 16:55:26 2009 +0200"
  },
  "message": "perf_counter: More aggressive frequency adjustment\n\nAlso employ the overflow handler to adjust the frequency, this results\nin a stable frequency in about 40~50 samples, instead of that many ticks.\n\nThis also means we can start sampling at a sample period of 1 without\nrunning head-first into the throttle.\n\nIt relies on sched_clock() to accurately measure the time difference\nbetween the overflow NMIs.\n\nSigned-off-by: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nCc: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nLKML-Reference: \u003cnew-submission\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "49f258537cbfc70dc93db194323897526a520c7d",
      "old_mode": 33188,
      "old_path": "arch/x86/kernel/cpu/perf_counter.c",
      "new_id": "240ca5630632bc33f1d232c8588fe6709f74f58a",
      "new_mode": 33188,
      "new_path": "arch/x86/kernel/cpu/perf_counter.c"
    },
    {
      "type": "modify",
      "old_id": "3586df840f6933c7b9e7b262552e72d50d850045",
      "old_mode": 33188,
      "old_path": "include/linux/perf_counter.h",
      "new_id": "282d8cc4898045695864e4f8775eec3bab53ed1a",
      "new_mode": 33188,
      "new_path": "include/linux/perf_counter.h"
    },
    {
      "type": "modify",
      "old_id": "5eacaaf3f9cdc3cf95e919d1cd485aea833f836a",
      "old_mode": 33188,
      "old_path": "kernel/perf_counter.c",
      "new_id": "51c571ee4d0b1369e1030b0b1f5d91dca8140885",
      "new_mode": 33188,
      "new_path": "kernel/perf_counter.c"
    }
  ]
}