Profile the build system

Name of Project

Profile the build system

Description

It's a well known fact that it takes longer to build on Windows than on a comparable Linux or Mac machine. We don't know exactly why, however. There have been many theories, but no real data. Profiling the build system would allow us to figure out where all of the time is being spent. The best place to start might be by adding some profiling to GNU Make, to figure out which targets in our makefiles take the most time. From there, depending on the results, profiling could be added to other parts of the build system to narrow down specific bottlenecks.

References:

1. http://wiki.services.openoffice.org/wiki/BuildSpeedup - OpenOffice.org did something similar

Resources: ted

Leader(s)

• Patrick Lam

Project Contributor(s)

• Tony Lai
• Zaid Ghansar
• Nino D'Aversa
• Jason Tarka
• Aaron Train
• Chris Bishop

Project Details

• Collect Data
  • Get build time info from others
    • Build From Scratch, Rebuild with no changes, using/not using -j4 option, hardware info (RAM, CPU, RPM)

• The -j4 option is used in the .mozconfig file
• -j specifies how many concurrent jobs you can run, so for some parts of the tree you get more makes going at once
  • mk_add_options MOZ_MAKE_FLAGS=-j4

Project Data

• Please feel free to fill in the table to help me collect more data
• YOU WILL BE CONSIDERED AS A PROJECT CONTRIBUTOR FOR PROVIDING DATA
• you can time your build by adding the "time" command in front of your build command like so:
  • time make -f client.mk build

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Build Time Data

Build From Scratch HH:MM:SS	Rebuilt No Changes HH:MM:SS	with -j#	RAM (GB)	CPU (GHz)	HD (rpm)	OS	User	Mozconfig
0:55:05	0:20:17	5	4 GB	2.0 Duo	7200	Vista Business	Patrick	mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/../obj-@CONFIG_GUESS@ ac_add_options --enable-application=browser mk_add_options MOZ_CO_PROJECT=browser mk_add_options MOZ_MAKE_FLAGS=-j5
0:59:00	0:20:45	4	4 GB	2.0 Duo	7200	Vista Business	Patrick	mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/../obj-@CONFIG_GUESS@ ac_add_options --enable-application=browser mk_add_options MOZ_CO_PROJECT=browser mk_add_options MOZ_MAKE_FLAGS=-j4
1:15:25	0:21:22	N/A	4 GB	2.0 Duo	7200	Vista Business	Patrick	mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/../obj-@CONFIG_GUESS@ ac_add_options --enable-application=browser mk_add_options MOZ_CO_PROJECT=browser
1:03:00		N/A	1 GB	1.6 Duo		XP Media	Tony
0:55:00		4	2.5 GB	1.6 AMD TurionX2		XP Professional	Zaid	mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/../obj-@CONFIG_GUESS@ mk_add_options MOZ_MAKE_FLAGS=-j4 ac_add_options --enable-application=browser ac_add_options --enable-libxul ac_add_options --disable-tests ac_add_options --disable-mochitest ac_add_options --disable-vista-sdk-requirements
real 0:44:29 user 0:13:16 sys 0:07:52	real 0:07:48 user 0:05:42 sys 0:03:29	5	2.5 GB	1.6 AMD TurionX2		XP Professional	Zaid	mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/../obj-@CONFIG_GUESS@ mk_add_options MOZ_MAKE_FLAGS=-j5 ac_add_options --enable-application=browser ac_add_options --enable-libxul ac_add_options --disable-tests ac_add_options --disable-mochitest ac_add_options --disable-vista-sdk-requirements
real 0:66:34 user 0:13:15 sys 0:07:54	real 0:09:00 user 0:05:46 sys 0:03:41	N/A	2.5 GB	1.6 AMD TurionX2		XP Professional	Zaid	mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/../obj-@CONFIG_GUESS@ ac_add_options --enable-application=browser ac_add_options --enable-libxul ac_add_options --disable-tests ac_add_options --disable-mochitest ac_add_options --disable-vista-sdk-requirements
1:17:44	-	2	1.5 GB	1.8 AMD Mobile Sempron	5400	Vista Business (32-bit)	Nino
0:24:15	0:01:07	N/A	2 GB	2.66 Duo	7200	Ubuntu 8.04 (64-bit)	Jason
0:15:12	0:01:04	4	2 GB	2.66 Duo	7200	Ubuntu 8.04 (64-bit)	Jason
0:43:14	-	-	2 GB	1.80 AMD Mobile Sempron	5400	Ubuntu 8.04 (32-bit)	Aaron T	mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/../obj-@CONFIG_GUESS@ ac_add_options --disable-optimize ac_add_options --disable-static --enable-shared
real 0:29:13 user 0:11:26 sys 0:03:47	real 0:05:8 user 0:04:47 sys 0:01:43	5	1 GB	2.0 Duo ( OC'd to 2.41 )	7200	Windows XP Professional ( 32-bit)	Chris Bishop	. $topsrcdir/browser/config/mozconfig mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/ff-opt mk_add_options MOZ_MAKE_FLAGS=-j5 ac_add_options --disable-tests
real 0:36:50 user 0:10:44 sys 0:03:30	real 0:05:7 user 0:04:17 sys 0:01:31	5	1 GB	2.0 Duo ( OC'd to 2.41 )	7200	Windows XP Professional ( 32-bit) - VS 2008 - Vista SDK	Chris Bishop	. $topsrcdir/browser/config/mozconfig mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/ff-opt ac_add_options --disable-vista-sdk-requirements ac_add_options --disable-tests ac_add_options --disable-accessibility
real 0:27:50 user 0:10:51 sys 0:03:42	real 0:04:46 user 0:04:21 sys 0:01:32	5	1 GB	2.0 Duo ( OC'd to 2.41 )	7200	Windows XP Professional ( 32-bit) - VS 2008 - Vista SDK	Chris Bishop	. $topsrcdir/browser/config/mozconfig mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/ff-opt mk_add_options MOZ_MAKE_FLAGS=-j5 ac_add_options --disable-vista-sdk-requirements ac_add_options --disable-tests ac_add_options --disable-accessibility
Didn't note the time.	FireFox: real 16m12.402s user 2m23.381s sys 5m11.815s ThunderBird real 16m26.193s user 2m15.639s sys 5m4.316s	5	2 GB	AMD turion 64x2		Windows Vista Home ( 32-bit)	Chinmay Patel	. ac_add_options --enable-application=mail mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/tbird-debug mk_add_options MOZ_CO_PROJECT=mail,calendar ac_add_options --disable-optimize ac_add_options --enable-debug mk_add_options MOZ_MAKE_FLAGS=-j5
real 33m57.475s user 31m40.558s sys 8m36.924s	real 2m51.103s user 0m49.142s sys 1m3.305s	4	3 GB 667 MHz	Intel Core 2 Duo 2.16 GHz	7200	Mac OSX 10.4.11	Ezadkiel V. Marbella	. $topsrcdir/browser/config/mozconfig mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/obj-ff ac_add_options --enable-tests ac_add_options --disable-libxul ac_add_options --enable-debug --disable-optimize ac_add_options --enable-shared --disable-static ac_add_options --with-macos-sdk=/Developer/SDKs/MacOSX10.4u.sdk mk_add_options MOZ_MAKE_FLAGS="-s -j4"
53:43	22:18	None	1 GB	Intel 3.0 GHZ Single Core	7200	Microsoft Windows XP Service Pack 3	Scott Lunel	. mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/obj-firefox mk_add_options MOZ_CO_PROJECT=browser ac_add_options --enable-application=browser ac_add_options --disable-optimize ac_add_options --enable-debug ac_add_options --disable-tests ac_add_options --disable-vista-sdk-requirements

Project News / Updates

09/18/2008 -

• Use time command to time build time
  • ie. time make -f client.mk build
• Start collecting data

09/17/2008 -

• Built the first time in 1h 20m
• Rebuilt second time in 35m with all apps off
• Talked with Shaver and directed me to thread on shrinking build time
  • Thread talked about /MP command for building in VS -> not useful in my case
• Dave's suggestion
  • Understand what each part of the build is taking
  • Collect win32 build times from colleagues

09/16/2008 -

• Talked with Ted Mielczarek, briefly discussed about where to start and how to approach this project.
  • Start by timing how long each make file is
  • Identify which make file takes a long time

09/15/2008 -

• Created Project page for this project.