Recall that Fenix optimizations (a.k.a use Windows API to make `File.expand_path` much faster) must be explicitly enabled similar to `set RUBYOPT=-rfenix/replace` or `ruby -rfenix/replace ...`

Notable updates from previous build:

  * Yura's new Hash optimizations and updates to cached $LOAD_PATH and sorted $LOADED_FEATURES
  * 1.9.3 backports as of ruby_1_9_3@34386
  * OpenSSL 1.0.0g
  * RubyGems 1.8.15
  * Built with MinGW GCC 4.6.2 toolchain (untested on WinXP SP3)

Built and tested on:

  * Windows 7 32bit/MinGW 4.6.2
  * Arch 3.2.2 32bit/GCC 4.6.2
  * FreeBSD 9.0 32bit/GCC 4.2.1 (build OK but false test failures; clang 3.0 build failures)

=== Build Summary ===

git co -b tcs-ruby_1_9_3 codeshop/ruby_1_9_3
git rebase winstat/ruby_1_9_3
git rebase winio/ruby_1_9_3
git rebase st_optimize/ruby_1_9_3
git rebase fileload-ok/ruby_1_9_3
git rebase cached-lp/ruby_1_9_3
git rebase sorted-lf/ruby_1_9_3
git rebase fenix/ruby_1_9_3
# fix `load.c:rb_get_expanded_load_path` merge conflict, `git rebase --continue`
# replace missed `rb_file_expand_path` in `load.c` and `ruby.c`
rake ruby19 local=C:\Users\Jon\Documents\RubyDev\ruby-git dkver=mingw-32-4.6.2
# add fenix artifacts (MinGW v4.6.2) to sandboxed `site-ruby/1.9.1/i386-msvcrt/`
RUBYOPT="-rfenix/replace" make test-all TESTS='openssl fiddle psych zlib io json mkmf pathname stringio erb fileutils ruby/test_io.rb ruby/test_io_m17n.rb ruby/test_file.rb'
RUBYOPT="-rfenix/replace" make test

=== Rails 3.2.1 (Win7 32bit) Startup Performance ===

# `rails new rails-empty`
C:\rails-empty>ruby --version
ruby 1.9.3p0 (2011-11-08 revision 33661) [i386-mingw32]
C:\rails-empty>timer ruby script\rails r "p $LOAD_PATH.size, $LOADED_FEATURES.size"
59
738
real    8.439
system  5.928
user    2.386

# `rails new rails-empty -d jdbcsqlite3`
C:\rails-empty>jruby --version
jruby 1.6.5.1 (ruby-1.8.7-p330) (2011-12-27 1bf37c2) (Java HotSpot(TM) Client VM 1.7.0_02) [Windows 7-x86-java]
C:\rails-empty>timer jruby script\rails r "p $LOAD_PATH.size, $LOADED_FEATURES.size"
60
738
real    7.332
system  1.778
user    6.318

# `rails new rails-empty`
C:\rails-empty>ruby --version
tcs-ruby 1.9.3p28 (2012-01-28, TCS patched 2012-01-30) [i386-mingw32]
C:\rails-empty>timer ruby script\rails r "p $LOAD_PATH.size, $LOADED_FEATURES.size"
59
738
real    3.775
system  2.652
user    1.107
C:\rails-empty>timer ruby -rfenix/replace script\rails r "p $LOAD_PATH.size, $LOADED_FEATURES.size"
59
740
real    2.121
system  0.967
user    1.107

=== Large File Read (Win7 32bit) Microbenchmark ===

C:\projects\measurements-git>pik run rci bench core_rd_filelines_lf
jruby 1.6.5.1 (ruby-1.8.7-p330) (2011-12-27 1bf37c2) (Java HotSpot(TM) Client VM 1.7.0_02) [Windows 7-x86-java]
Rehearsal --------------------------------------------------------
core_rd_filelines_lf   7.878000   0.000000   7.878000 (  7.847000)
----------------------------------------------- total: 7.878000sec

                           user     system      total        real
core_rd_filelines_lf   7.816000   0.000000   7.816000 (  7.816000)

ruby 1.8.7 (2011-12-28 patchlevel 357) [i386-mingw32]
Rehearsal --------------------------------------------------------
core_rd_filelines_lf   1.716000   0.203000   1.919000 (  1.918804)
----------------------------------------------- total: 1.919000sec

                           user     system      total        real
core_rd_filelines_lf   1.732000   0.171000   1.903000 (  1.903203)

ruby 1.9.2p290 (2011-07-09) [i386-mingw32]
Rehearsal --------------------------------------------------------
core_rd_filelines_lf  17.472000   0.063000  17.535000 ( 17.534431)
---------------------------------------------- total: 17.535000sec

                           user     system      total        real
core_rd_filelines_lf  17.519000   0.078000  17.597000 ( 17.628031)

ruby 1.9.3p0 (2011-11-08 revision 33661) [i386-mingw32]
Rehearsal --------------------------------------------------------
core_rd_filelines_lf  17.612000   0.062000  17.674000 ( 17.690431)
---------------------------------------------- total: 17.674000sec

                           user     system      total        real
core_rd_filelines_lf  17.753000   0.016000  17.769000 ( 17.784032)

tcs-ruby 1.9.3p28 (2012-01-28, TCS patched 2012-01-30) [i386-mingw32]
Rehearsal --------------------------------------------------------
core_rd_filelines_lf   1.155000   0.125000   1.280000 (  1.279202)
----------------------------------------------- total: 1.280000sec

                           user     system      total        real
core_rd_filelines_lf   1.170000   0.094000   1.264000 (  1.263602)

ruby 2.0.0dev (2012-01-28 trunk 34390) [i386-mingw32]
Rehearsal --------------------------------------------------------
core_rd_filelines_lf   1.185000   0.078000   1.263000 (  1.263603)
----------------------------------------------- total: 1.263000sec

                           user     system      total        real
core_rd_filelines_lf   1.155000   0.109000   1.264000 (  1.263602)

Jon

Since I rebased all your commits from `st_optimize/ruby_1_9_3`, `cached_lp/ruby_1_9_3`, and `sorted_lf/ruby_1_9_3` onto `tcs-ruby_1_9_3` can rvm and rbenv use the `tcs-ruby_1_9_3` branch as-is or do we need to do something else? (I'm a minimal rvm user and haven't yet looked at rbenv.)

My only concern is that since the `tcs-ruby_1_9_3` branch will likely be forced everytime I do a release, the rebasing could cause downstream problems.

What's the easiest and most maintainable way for us to work with rvm and rbenv for releases?

  https://github.com/thecodeshop/ruby/wiki/FAQ#wiki-rbenv

  devil% uname -opr
  FreeBSD 9.0-RELEASE i386
  devil% rbenv global
  system
  devil% rbenv versions
    tcs-ruby_1.9.3-p28
  devil% rbenv which ruby
  /usr/local/bin/ruby
  devil% rbenv shell tcs-ruby_1.9.3-p28
  devil% rbenv which ruby
  /home/jon/.rbenv/versions/tcs-ruby_1.9.3-p28/bin/ruby
  devil% ruby -ve 'puts "Hello from TCS Ruby!"'
  tcs-ruby 1.9.3p28 (2012-01-28, TCS patched 2012-01-30) [i386-freebsd9.0]
  Hello from TCS Ruby!

But I think the replacements for Fenix on Windows could degrade performance on *nix so I'll #ifndef the `tcs-ruby_1_9_3` and `fenix/ruby_1_9_3` branches unless I hear differently from anyone.

  https://github.com/thecodeshop/ruby/commit/22277c0b5c524da4583895a3c9...

Feel free to update the FAQ entry if needed.

Do these two solve the issue or do we need to do more?

  https://github.com/thecodeshop/ruby/commit/8571639f894479378934996fb3...
  https://github.com/thecodeshop/ruby/wiki/FAQ#wiki-rbenv

It may take me some time to swing back and update the FAQ for rvm so
feel free to add a new entry for rvm if you've got a good solution.

When tweaking `tcs-ruby_1_9_3`, please update the TCS datestamps https://github.com/thecodeshop/ruby/commit/b29f5d410af004ccef475f91c0... just in case someone runs into issues and posts at the ML or repo.

What OS/toolchains did you test (`make test && make test-all` ??) the new mods on?

Only Ubuntu. But most OS dependent changes are copied from ruby-trunk - I
hope they know what they do :)

No build/test failures with...

== FreeBSD 9.0 VM/GCC 4.2.1 ==
../configure --enable-shared --disable-install-doc
make
make test
make test-all TESTS='openssl fiddle psych zlib io json mkmf pathname stringio erb fileutils ruby/test_io.rb ruby/test_io_m17n.rb ruby/test_file.rb'