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review.blissroms.org / platform_build_kati / 50ad39254f5ce39d5c8f662481dbd02afdeec644
commit50ad39254f5ce39d5c8f662481dbd02afdeec644[log] [tgz]
authorPark Ju Hyung <qkrwngud825@gmail.com>Wed Dec 14 22:38:49 2016 +0900
committerJackeagle <jackeagle102@gmail.com>Wed Aug 08 12:19:28 2018 -0400
tree6f88ce3288cb68dfab941ecfb990d1efe86ddb69
parent17da287661100ee95f6f7b16c86afbdd78243dc5 [diff]
Do not limit threads upon calling legacy GNU make

Limiting legacy GNU make and making ninja run faster might sound ok,
but on Android, huge amount of time is still being spent on GNU make.

For example :
limiting the threads to half causes huge slowdown to inline kernel builds.

Unlock this limit and allow GNU make to fully utilize all CPU cores.

Change-Id: Iacdcaac844c0e2d15830f5d96f8f8a3bd9f6ca5b
Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>
(cherry picked from commit bc43789a938c10cb00b81ddf08239c1b4cea48bb)
1 file changed
tree: 6f88ce3288cb68dfab941ecfb990d1efe86ddb69
  1. cmd/
  2. make-c/
  3. testcase/
  4. .clang-format
  5. .gitignore
  6. .travis.yml
  7. affinity.cc
  8. affinity.h
  9. Android.bp
  10. ast.go
  11. AUTHORS
  12. bootstrap.go
  13. buf.go
  14. buf_test.go
  15. command.cc
  16. command.h
  17. CONTRIBUTING.md
  18. CONTRIBUTORS
  19. dep.cc
  20. dep.go
  21. dep.h
  22. depgraph.go
  23. doc.go
  24. eval.cc
  25. eval.go
  26. eval.h
  27. evalcmd.go
  28. exec.cc
  29. exec.go
  30. exec.h
  31. expr.cc
  32. expr.go
  33. expr.h
  34. expr_test.go
  35. file.cc
  36. file.h
  37. file_cache.cc
  38. file_cache.h
  39. fileutil.cc
  40. fileutil.go
  41. fileutil.h
  42. fileutil_bench.cc
  43. find.cc
  44. find.h
  45. find_test.cc
  46. flags.cc
  47. flags.go
  48. flags.h
  49. func.cc
  50. func.go
  51. func.h
  52. func_test.go
  53. INTERNALS.md
  54. io.cc
  55. io.h
  56. LICENSE
  57. loc.h
  58. log.cc
  59. log.go
  60. log.h
  61. m2n
  62. main.cc
  63. make-c.sh
  64. Makefile
  65. Makefile.ckati
  66. Makefile.kati
  67. ninja.cc
  68. ninja.go
  69. ninja.h
  70. ninja_test.cc
  71. ninja_test.go
  72. OWNERS
  73. pack.sh
  74. parser.cc
  75. parser.go
  76. parser.h
  77. pathutil.go
  78. pathutil_test.go
  79. query.go
  80. README.md
  81. regen.cc
  82. regen.h
  83. regen_dump.cc
  84. rule.cc
  85. rule.h
  86. rule_parser.go
  87. rule_parser_test.go
  88. runtest.rb
  89. serialize.go
  90. shellutil.go
  91. shellutil_test.go
  92. stats.cc
  93. stats.go
  94. stats.h
  95. stmt.cc
  96. stmt.h
  97. string_piece.cc
  98. string_piece.h
  99. string_piece_test.cc
  100. stringprintf.cc
  101. stringprintf.h
  102. strutil.cc
  103. strutil.go
  104. strutil.h
  105. strutil_bench.cc
  106. strutil_test.cc
  107. strutil_test.go
  108. symtab.cc
  109. symtab.go
  110. symtab.h
  111. testutil.h
  112. thread_local.h
  113. thread_pool.cc
  114. thread_pool.h
  115. timeutil.cc
  116. timeutil.h
  117. var.cc
  118. var.go
  119. var.h
  120. version.go
  121. version.h
  122. version_unknown.cc
  123. worker.go
README.md

kati

Build Status

kati is an experimental GNU make clone. The main goal of this tool is to speed-up incremental build of Android.

Currently, kati does not offer a faster build by itself. It instead converts your Makefile to a ninja file.

How to use for Android

Now AOSP has kati and ninja, so all you have to do is

% export USE_NINJA=true

All Android's build commands (m, mmm, mmma, etc.) should just work.

How to use for Android (deprecated way)

Set up kati:

% cd ~/src
% git clone https://github.com/google/kati
% cd kati
% make

Build Android:

% cd <android-directory>
% source build/envsetup.sh
% lunch <your-choice>
% ~/src/kati/m2n --kati_stats  # Use --goma if you are a Googler.
% ./ninja.sh

You need ninja in your $PATH.

More usage examples (deprecated way)

"make clean"

% ./ninja.sh -t clean

Note ./ninja.sh passes all parameters to ninja.

Build a specific target

For example, the following is equivalent to "make cts":

% ./ninja.sh cts

Or, if you know the path you want, you can do:

% ./ninja.sh out/host/linux-x86/bin/adb