)]}'
{
  "commit": "604d6e216dc4103f163a5503a39ff0c9add838fa",
  "tree": "30399c92573562854e0bdeef4638f813a9f6cbdc",
  "parents": [
    "f2ddfefdb51d1c933b6f8e2e1a88f603d0bfdc12"
  ],
  "author": {
    "name": "David \u0027Digit\u0027 Turner",
    "email": "digit@google.com",
    "time": "Thu Oct 15 23:40:55 2020 +0200"
  },
  "committer": {
    "name": "Commit Bot",
    "email": "commit-bot@chromium.org",
    "time": "Fri Nov 27 22:54:17 2020 +0000"
  },
  "message": "gn recipe: Link GN with rpmalloc to speed it up.\n\nNOTE: This is a reland of [1] with an updated rpmalloc\nrevision that includes fixes for the -Wconversion errors\nthat required reverting the original CL.\n\nThis CL changes the GN recipe to link the executable with the\nrpmalloc allocator from https://github.com/mjansson/rpmalloc\n\nThis speeds up the \u0027gn gen\u0027 operation of both Chromium and Fuchsia\noperations by 28% and 12% respectively [1], and has slightly better\nperformance than using tcmalloc from gperftools in the Fuchsia case.\n\nNote that:\n\n- The sources are grabbed directly from github.com, but it might be\n  desirable to use a Chromium or Fuchsia supported mirror instead.\n\n- Only Linux has been tested so far, so only this platform enables\n  this build mode.\n\n[1] Median measurements from 10 runs of \u0027gn gen\u0027 using the default\n    Linux allocator (glibc), gperftools\u0027 tcmalloc, and rpmalloc:\n\n  Fuchsia:\n      glibc (default):  9917 ms\n      gperftools:       7858 ms  (26% faster)\n      rpmalloc:         7752 ms  (28% faster)\n\n  Chromium:\n      glibc (default):  4742 ms\n      gperftools:       4186 ms  (13% faster)\n      rpmalloc:         4235 ms  (12% faster)\n\n[1] https://gn-review.googlesource.com/c/gn/+/9920\n\nChange-Id: I0860c34437faee7c1f97e01f831cbf25f49c819e\nReviewed-on: https://gn-review.googlesource.com/c/gn/+/10420\nCommit-Queue: David Turner \u003cdigit@google.com\u003e\nReviewed-by: Petr Hosek \u003cphosek@google.com\u003e\n",
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