Directly marking iseq operands allows us to eliminate the "mark array"
stored on ISEQ objects, which will reduce the amount of memory ISEQ
objects consume. This patch changes the iseq mark function to:
* Directly marks ISEQ operands
* Iterate over and mark child ISEQs
It also introduces two flags on the ISEQ object. In order to mark
instruction operands, we have to disassemble the instructions and find
the instruction parameters and types. Instructions may also be
translated to jump addresses. Instruction sequences may get marked by
the GC *while* they're mid flight (being compiled). The
`ISEQ_TRANSLATED` flag is used to indicate whether or not the
instructions have been translated to jump addresses so that when we
decode the instructions we know whether or not we need to go from jump
location back to original instruction or not.
Not all ISEQ objects have any markable objects embedded in their
instructions. We can detect whether or not an ISEQ has markable objects
in the instructions at compile time. If the instructions contain
markable objects, we set a flag `ISEQ_MARKABLE_ISEQ` on the ISEQ object.
This means that during the mark phase, we can skip decompilation if the
flag is *not* set. In other words, we can avoid decompilation of we
know in advance there is nothing to mark.
`once` instructions have an operand that contains the result of a
one-time compilation of a regex. Before this patch, that operand was
called an "inline cache", even though the struct was actually an "inline
storage". This patch changes the operand to be an "inline storage" so
that we can differentiate between caches that need marking (the inline
storage) and caches that don't need marking (inline cache).
[ruby-core:84909]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62706 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
on !body->catch_except_p. We need to move pc only when JIT execution is
canceled if the frame does not catch an exception.
_mjit_compile_insn.erb: lazily move pc for such optimized case
_mjit_compile_insn_body.erb: ditto
_mjit_compile_send.erb: ditto
* Optcarrot benchmark (--jit)
Before: 65.31 fps
After: 67.82 fps
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62678 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Now RubyCI is stable for this part. We no longer use this.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62676 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
if catch_except_p is FALSE. If catch_except_p is TRUE, stack values
should be on VM's stack when exception is thrown and the JIT-ed frame
is re-executed by VM's exception handler. If it's FALSE, the JIT-ed
frame won't be re-executed and don't need to keep values on VM's stack.
Using local variables allows us to reduce cfp->sp motion. Moving cfp->sp
is needed only for insns whose handles_frame? is false. So it improves
performance.
_mjit_compile_insn.erb: Prepare `stack_size` variable for GET_SP,
STACK_ADDR_FROM_TOP, TOPN macros. Share pc and sp motion partial view.
Use cancel handler created in mjit_compile.c.
_mjit_compile_send.erb: ditto. Also, when iseq->body->catch_except_p is
TRUE, this stops to call mjit_exec directly. I described the reason in
vm_insnhelper.h's comment for EXEC_EC_CFP.
_mjit_compile_pc_and_sp.erb: Shared logic for moving sp and pc. As you
can see from thsi file, when status->local_stack_p is TRUE and
insn.handles_frame? is false, moving sp is skipped. But if
insn.handles_frame? is true, values should be rolled back to VM's stack.
common.mk: add dependency for the file
_mjit_compile_insn_body.erb: Set sp value before canceling JIT on
DISPATCH_ORIGINAL_INSN. Replace GET_SP, STACK_ADDR_FROM_TOP, TOPN macros
for the case ocal_stack_p is TRUE and insn.handles_frame? is false.
In that case, values are not available on VM's stack and those macros
should be replaced.
mjit_compile.inc.erb: updated comments of macros which are supported by
JIT compiler. All references to `cfp->sp` should be replaced and thus
INC_SP, SET_SV, PUSH are no longer supported for now, because they are
not used now.
vm_exec.h: moved EXEC_EC_CFP definition to vm_insnhelper.h because it's
tighly coupled to CALL_METHOD.
vm_insnhelper.h: Have revised EXEC_EC_CFP definition moved from vm_exec.h.
Now it triggers mjit_exec for VM, and has the guard for catch_except_p
on JIT-ed code. See comments for details. CALL_METHOD delegates
triggering mjit_exec to EXEC_EC_CFP.
insns.def: Stopped using EXEC_EC_CFP for the case we don't want to
trigger mjit_exec. Those insns (defineclass, opt_call_c_function) are
not supported by JIT and it's safe to use RESTORE_REGS(), NEXT_INSN().
expandarray is changed to pass GET_SP() to replace the macro in
_mjit_compile_insn_body.erb.
vm_insnhelper.c: change to take sp for the above reason.
[close https://github.com/ruby/ruby/pull/1828]
This patch resurrects the performance which was attached in
[Feature #14235].
* Benchmark
Optcarrot (with configuration for benchmark_driver.gem)
https://github.com/benchmark-driver/optcarrot
$ benchmark-driver benchmark.yml --verbose 1 --rbenv 'before;before+JIT::before,--jit;after;after+JIT::after,--jit' --repeat-count 10
before: ruby 2.6.0dev (2018-03-04 trunk 62652) [x86_64-linux]
before+JIT: ruby 2.6.0dev (2018-03-04 trunk 62652) +JIT [x86_64-linux]
after: ruby 2.6.0dev (2018-03-04 local-variable.. 62652) [x86_64-linux]
last_commit=mjit_compile.c: use local variables for stack
after+JIT: ruby 2.6.0dev (2018-03-04 local-variable.. 62652) +JIT [x86_64-linux]
last_commit=mjit_compile.c: use local variables for stack
Calculating -------------------------------------
before before+JIT after after+JIT
optcarrot 53.552 59.680 53.697 63.358 fps
Comparison:
optcarrot
after+JIT: 63.4 fps
before+JIT: 59.7 fps - 1.06x slower
after: 53.7 fps - 1.18x slower
before: 53.6 fps - 1.18x slower
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62655 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/bisect.sh: also srcs needs Makefile, must in the build but
not the source directory.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62618 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* It is now part of mspec in spec/mspec/tool/pull-latest-mspec-spec
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62604 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
I could not `make` trunk (62585) without this patch.
```
$ make -j4 && make install
BASERUBY = /home/pocke/.rbenv/shims/ruby --disable=gems
CC = gcc
LD = ld
LDSHARED = gcc -shared
CFLAGS = -O3 -ggdb3 -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wno-tautological-compare -Wno-parentheses-equality -Wno-constant-logical-operand -Wno-self-assign -Wunused-variable -Werror=implicit-int -Werror=pointer-arith -Werror=write-strings -Werror=declaration-after-statement -Werror=implicit-function-declaration -Werror=deprecated-declarations -Werror=misleading-indentation -Wno-overlength-strings -Wno-packed-bitfield-compat -Wsuggest-attribute=noreturn -Wsuggest-attribute=format -Wmissing-noreturn -Wimplicit-fallthrough=0 -Werror=duplicated-cond -Werror=restrict -std=gnu99 -fPIC
XCFLAGS = -D_FORTIFY_SOURCE=2 -fstack-protector -fno-strict-overflow -DRUBY_DEVEL=1 -fvisibility=hidden -fexcess-precision=standard -DRUBY_EXPORT
CPPFLAGS = -I. -I.ext/include/x86_64-linux -I./include -I. -I./enc/unicode/10.0.0
DLDFLAGS = -Wl,--compress-debug-sections=zlib -Wl,-soname,libruby.so.2.6 -fstack-protector
SOLIBS = -lpthread -lgmp -ldl -lcrypt -lm
LANG = en_GB.UTF-8
LC_ALL =
LC_CTYPE =
gcc (GCC) 7.3.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
generating opt_sc.inc
generating optunifs.inc
generating insns.inc
generating insns_info.inc
Traceback (most recent call last):
6: from ./tool/insns2vm.rb:9:in `<main>'
5: from ./tool/insns2vm.rb:9:in `each'
4: from ./tool/insns2vm.rb:10:in `block in <main>'
3: from /home/pocke/ghq/github.com/ruby/ruby/tool/ruby_vm/helpers/dumper.rb:98:in `generate'
2: from /home/pocke/ghq/github.com/ruby/ruby/tool/ruby_vm/helpers/dumper.rb:76:in `do_render'
1: from /home/pocke/.rbenv/versions/trunk/lib/ruby/2.6.0/erb.rb:873:in `result'
/home/pocke/.rbenv/versions/trunk/lib/ruby/2.6.0/erb.rb:869:in `block in result': no implicit conversion of Hash into Integer (TypeError)
make: *** [Makefile:534: opt_sc.inc] Error 1
make: *** Waiting for unfinished jobs....
Traceback (most recent call last):
6: from ./tool/insns2vm.rb:9:in `<main>'
5: from ./tool/insns2vm.rb:9:in `each'
4: from ./tool/insns2vm.rb:10:in `block in <main>'
3: from /home/pocke/ghq/github.com/ruby/ruby/tool/ruby_vm/helpers/dumper.rb:98:in `generate'
2: from /home/pocke/ghq/github.com/ruby/ruby/tool/ruby_vm/helpers/dumper.rb:76:in `do_render'
1: from /home/pocke/.rbenv/versions/trunk/lib/ruby/2.6.0/erb.rb:873:in `result'
/home/pocke/.rbenv/versions/trunk/lib/ruby/2.6.0/erb.rb:869:in `block in result': no implicit conversion of Hash into Integer (TypeError)
make: *** [Makefile:534: optunifs.inc] Error 1
Traceback (most recent call last):
6: from ./tool/insns2vm.rb:9:in `<main>'
5: from ./tool/insns2vm.rb:9:in `each'
4: from ./tool/insns2vm.rb:10:in `block in <main>'
3: from /home/pocke/ghq/github.com/ruby/ruby/tool/ruby_vm/helpers/dumper.rb:98:in `generate'
2: from /home/pocke/ghq/github.com/ruby/ruby/tool/ruby_vm/helpers/dumper.rb:76:in `do_render'
1: from /home/pocke/.rbenv/versions/trunk/lib/ruby/2.6.0/erb.rb:873:in `result'
/home/pocke/.rbenv/versions/trunk/lib/ruby/2.6.0/erb.rb:869:in `block in result': no implicit conversion of Hash into Integer (TypeError)
Traceback (most recent call last):
6: from ./tool/insns2vm.rb:9:in `<main>'
5: from ./tool/insns2vm.rb:9:in `each'
4: from ./tool/insns2vm.rb:10:in `block in <main>'
3: from /home/pocke/ghq/github.com/ruby/ruby/tool/ruby_vm/helpers/dumper.rb:98:in `generate'
2: from /home/pocke/ghq/github.com/ruby/ruby/tool/ruby_vm/helpers/dumper.rb:76:in `do_render'
1: from /home/pocke/.rbenv/versions/trunk/lib/ruby/2.6.0/erb.rb:873:in `result'
/home/pocke/.rbenv/versions/trunk/lib/ruby/2.6.0/erb.rb:869:in `block in result': no implicit conversion of Hash into Integer (TypeError)
make: *** [Makefile:534: insns.inc] Error 1
make: *** [Makefile:534: insns_info.inc] Error 1
```
I guess this issue is same as https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/62531
So I applied the same change to tool/ruby_vm/helpers/dumper.rb also.
close https://github.com/ruby/ruby/pull/1826
Co-authored-by: Masataka Pocke Kuwabara <kuwabara@pocke.me>
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62590 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/make-snapshot (package): export ChangLog file under the
exported directory. Git can work only under a git repository.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62579 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/vcs.rb (VCS::GIT#export): do not remove .git directory.
should remove it by after_export.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62577 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
instead of Ruby's.
When older ERB is installed but Ruby is still 2.6.0, this may cause
error like:
```
Traceback (most recent call last):
5: from ../src/tool/generic_erb.rb:36:in `<main>'
4: from ../src/tool/generic_erb.rb:36:in `map'
3: from ../src/tool/generic_erb.rb:43:in `block in <main>'
2: from ../src/tool/generic_erb.rb:43:in `block (2 levels) in <main>'
1: from /opt/local/lib/ruby/2.6.0/erb.rb:873:in `result'
/opt/local/lib/ruby/2.6.0/erb.rb:869:in `block in result': no implicit conversion of Hash into Integer (TypeError)
```
For safety, I changed this to check ERB's version. See also: r62529.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62531 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Also, as it's in the middle of the list of 4 arguments, 3rd and 4th arguments
(trim_mode, eoutvar) are changed to keyword arguments.
Old ways to specify arguments are deprecated and warned now.
bin/erb: deprecate -S option.
We'll remove all of deprecated ones at Ruby 2.7+.
enc/make_encmake.rb: stopped using deprecated interface
ext/etc/mkconstants.rb: ditto
ext/socket/mkconstants.rb: ditto
sample/ripper/ruby2html.rb: ditto
spec/ruby/library/erb/defmethod/def_erb_method_spec.rb: ditto
spec/ruby/library/erb/new_spec.rb: ditto
test/erb/test_erb.rb: ditto
test/erb/test_erb_command.rb: ditto
tool/generic_erb.rb: ditto
tool/ruby_vm/helpers/dumper.rb: ditto
tool/transcode-tblgen.rb: ditto
lib/rdoc/erbio.rb: ditto
lib/rdoc/generator/darkfish.rb: ditto
[Feature #14256]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62529 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
AC_CHECK_TYPE (no "S") does not define HAVE_* macros for types,
so use AC_CHECK_TYPES (with "S") instead. Without this,
HAVE_CLOCKID_T goes undefined and I can't USE_MONOTONIC_COND in
thread_pthread.c :<
Fixes: r62446 (git 673ae0e3c9)
("configure.ac: check clockid_t with necessary headers")
* tool/m4/ruby_replace_type.m4: use AC_CHECK_TYPES for HAVE_* macros
[ruby-core:85659] [Bug #14494]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62495 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* mjit.c (form_args): do not use va_copy, which cannot detect
appropriate way to simulate when cross compiling.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62463 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/m4/ruby_check_va_copy.m4 (RUBY_CHECK_VA_COPY): use
AC_TRY_LINK instead of AC_TRY_RUN for cross compiling.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62432 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
with opt_send_without_block insn if call cache has valid ISeq.
If the receiver is not optimized target of opt_key (i.e. Hash or Array),
it triggers JIT cancel and it would be slow.
This change allows JIT to drop the check for Hash/Array and continue to
execute JIT even if the receiver is not Hash or Array.
See the following benchmark results. It's not improved so much, but it
would be effective when we achieve Ruby method inlining in
_mjit_compile_send.erb.
* Micro benchmark
Given the following bench.rb,
```
class HashWithIndifferentAccess < Hash
def []=(key, value)
super(key.to_s, value)
end
def [](key)
super(key.to_s)
end
end
indhash = HashWithIndifferentAccess.new
indhash[:foo] = 'bar'
key = 'foo'
100000000.times do
indhash[key]
end
```
** before
```
$ time ./ruby --disable-gems --jit-verbose=1 /tmp/bench.rb
JIT success (31.4ms): block in <main>@/tmp/bench.rb:15 -> /tmp/_ruby_mjit_p18206u0.c
JIT success (669.3ms): []@/tmp/bench.rb:6 -> /tmp/_ruby_mjit_p18206u1.c
Successful MJIT finish
./ruby --disable-gems --jit-verbose=1 /tmp/bench.rb 12.21s user 0.04s system 107% cpu 11.394 total
```
** after
```
$ time ./ruby --disable-gems --jit-verbose=1 /tmp/bench.rb
JIT success (41.0ms): block in <main>@/tmp/bench.rb:15 -> /tmp/_ruby_mjit_p17293u0.c
JIT success (679.0ms): []@/tmp/bench.rb:6 -> /tmp/_ruby_mjit_p17293u1.c
Successful MJIT finish
./ruby --disable-gems --jit-verbose=1 /tmp/bench.rb 11.54s user 0.06s system 108% cpu 10.726 total
```
The execution time is shortened.
* optcarrot benchmark
Optcarrot has no room to be improved by this change. Almost nothing is changed.
fps: 59.54 (before) -> 59.51 (after)
* discourse benchmark
I expected this to be improved a little, but it isn't too.
** before (JIT)
```
categories_admin:
50: 12
75: 13
90: 14
99: 22
home_admin:
50: 12
75: 13
90: 16
99: 22
topic_admin:
50: 12
75: 13
90: 15
99: 21
categories:
50: 18
75: 19
90: 23
99: 27
home:
50: 3
75: 4
90: 4
99: 12
topic:
50: 11
75: 11
90: 14
99: 20
```
** after (JIT)
```
categories_admin:
50: 12
75: 12
90: 16
99: 24
home_admin:
50: 12
75: 12
90: 14
99: 21
topic_admin:
50: 12
75: 13
90: 16
99: 21
categories:
50: 17
75: 18
90: 23
99: 32
home:
50: 3
75: 4
90: 4
99: 10
topic:
50: 11
75: 12
90: 13
99: 20
```
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62398 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
renamed from tool/ruby_vm/views/_mjit_compile_insn_line.erb.
Basically this file should handle everything about macro on JIT.
_mjit_compile_insn.erb: follow the refactoring
common.mk: follow the rename
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62384 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
in _mjit_compile_insn.erb to this file. As I'm going to add macro
expansions later, I want to separate such complex things from whole insn
compilation.
_mjit_compile_insn.erb: _mjit_compile_insn_line.erb part was removed.
common.mk: updated build system for them.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62383 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
mjit_compile.inc.erb: show unsupported insn name on --jit-verbose=1 too.
Also, removed osboleted workaround. Now some insn-related functions are
declared with MAYBE_UNUSED.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62382 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/ruby_vm/views/_mjit_compile_insn.erb: comment ID of
constant, calling method, and Symbol literal.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62354 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* tool/ruby_vm/views/_mjit_compile_send.erb: `printf` modifier for
`rb_serial_t` which may not be `long long`, and '%ll' may not be
supported.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62351 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* mjit_compile.c (mjit_compile): name the original iseq pointer to
eliminate magic numbers.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62340 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
I heard `error: conflicting types for 'restrict'` can be solved by
adding `-std=c99`.
Ideally we should use the same cflags which are used to compile vm.c,
but let me try this and see what happens on AIX.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62326 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
tool/ruby_vm/views/_insn_name_info.erb: on Linux, rb_vm_insn_name_offset
was needed to compile with --jit-debug (Usually --jit-debug requires
more symbols than the situation without --jit-debug because -O2 skips
some functions to compile).
vm.c: when running transform_mjit_header.rb with --jit-wait,
rb_source_location_cstr was repoted to be missing.
string.c: ditto, for rb_str_eql
numeric.c: ditto, for rb_float_eql
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62313 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
to generate MJIT header.
Even if we can't build MJIT header, Ruby's build should success. And
compilers which are not explicitly supported are likely to fail to
transform MJIT header.
Also you can pass only gcc or clang to --jit-cc=xxx for now. Thus
generating header does never make sense.
So I decided to conservatively give up MJIT header generation.
But please feel free to add your favorite compiler's macro if you think
it's working. (Another workaround is passing -D__GNUC__ :p)
[Bug #14447] [Bug #14446]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62285 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
and style of generated code.
I've used 2-space indentation at first but at some moment I started to
use insns.def contents for generated code. So the 4-space indentation
was introduced. But it does no longer make sense.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62255 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
AIX's header build is failing like:
./miniruby -I./lib -I. -I.ext/common ./tool/transform_mjit_header.rb "/usr/bin/gcc " rb_mjit_header.h .ext/include/powerpc-aix7.1.3.0/rb_mjit_min_header-2.6.0.h
error in initial header file:
/home/odaira/chkbuild/tmp/build/20180206T113302Z/tmp/20180206-15335556-aaiego.c:19:59: error: conflicting types for 'restrict'
extern size_t fread(void *restrict, size_t, size_t, FILE *restrict);
^
https://rubyci.org/logs/rubyci.s3.amazonaws.com/aix71_ppc/ruby-trunk/log/20180206T113302Z.log.html.gz#make
It's so hard to know the cause from current output. Let me add debug
output and see tomorrow's CI result.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62252 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Because `Regexp#to_s` add `(?-mix:)`, it is not unnecessary.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62250 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit updates files so that aclocal.m4 generated by aclocal(1)
works well with our configure.ac
* ac_checking.m4: merged back to configure.ac because
aclocal(1) cannot handle this macro.
* ruby_append_options.m4: no longer used.
* ruby_check_va_copy.m4: define using AC_DEFUN so that
aclocal(1) can find this macro.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62243 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
tenderlove
k0kubun
nobu
hsbt
eregon
naruse
normal
kazu
shyouhei