)]}'
{
  "commit": "9b33827de63539c7c3314ddf890fb216e4acf3d8",
  "tree": "233330d9489013a0d1c24a3920d370527b2de308",
  "parents": [
    "604c5c92972dcb4b98be34775452d09a5d4ec248"
  ],
  "author": {
    "name": "Arnaldo Carvalho de Melo",
    "email": "acme@redhat.com",
    "time": "Wed Dec 16 14:31:49 2009 -0200"
  },
  "committer": {
    "name": "Ingo Molnar",
    "email": "mingo@elte.hu",
    "time": "Wed Dec 16 18:29:10 2009 +0100"
  },
  "message": "perf diff: Percent calcs should use double values\n\nOtherwise we do integer math and the delta values round up to\nmultiples of 1.0%.\n\nAlso, calculate absolute values. Things look precise now:\n\n$ perf report -i perf.data.old --sort dso,symbol | head -13\n     9.02%  libc-2.10.1.so               [.] _IO_vfprintf_internal\n     4.88%  find                         [.] 0x00000000014af0\n     2.91%  [kernel]                     [k] __kmalloc\n     2.85%  [kernel]                     [k] ext4_htree_store_dirent\n     2.50%  libc-2.10.1.so               [.] __GI_memmove\n     2.44%  [kernel]                     [k] half_md4_transform\n     2.43%  [kernel]                     [k] _spin_lock\n     2.33%  [kernel]                     [k] system_call\n$ perf report -i perf.data --sort dso,symbol | head -13\n     8.55%  libc-2.10.1.so               [.] _IO_vfprintf_internal\n     3.11%  [kernel]                     [k] __kmalloc\n     3.07%  [kernel]                     [k] ext4_htree_store_dirent\n     2.66%  find                         [.] 0x00000000016bcf\n     2.61%  [kernel]                     [k] _atomic_dec_and_lock\n     2.46%  [kernel]                     [k] half_md4_transform\n     2.41%  libc-2.10.1.so               [.] __GI_memmove\n     2.30%  find                         [.] 0x00000000009219\n$ perf diff | head -13\n     9.02%     -0.47%  libc-2.10.1.so               [.] _IO_vfprintf_internal\n     2.91%     +0.20%  [kernel]                     [k] __kmalloc\n     2.85%     +0.23%  [kernel]                     [k] ext4_htree_store_dirent\n     1.99%     +0.62%  [kernel]                     [k] _atomic_dec_and_lock\n     2.44%     +0.02%  [kernel]                     [k] half_md4_transform\n     2.50%     -0.09%  libc-2.10.1.so               [.] __GI_memmove\n     1.88%     +0.01%  [kernel]                     [k] __d_lookup\n     2.43%     -0.75%  [kernel]                     [k] _spin_lock\n     0.97%     +0.62%  [kernel]                     [k] path_get\n     1.99%     -0.42%  libc-2.10.1.so               [.] _int_malloc\n$\n\nSigned-off-by: Arnaldo Carvalho de Melo \u003cacme@redhat.com\u003e\nCc: Frédéric Weisbecker \u003cfweisbec@gmail.com\u003e\nCc: Mike Galbraith \u003cefault@gmx.de\u003e\nCc: Peter Zijlstra \u003ca.p.zijlstra@chello.nl\u003e\nCc: Paul Mackerras \u003cpaulus@samba.org\u003e\nLKML-Reference: \u003c1260981109-2621-1-git-send-email-acme@infradead.org\u003e\nSigned-off-by: Ingo Molnar \u003cmingo@elte.hu\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "ecf853cdc0bf9507552499111c671021ee253120",
      "old_mode": 33188,
      "old_path": "tools/perf/util/hist.c",
      "new_id": "e8daf5ca6fd20dee79b5652c61ad48f59d109e30",
      "new_mode": 33188,
      "new_path": "tools/perf/util/hist.c"
    }
  ]
}