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% ruby --disable-gems test.rb
{:T_HASH=>1, :T_DATA=>2}
{:T_ARRAY=>1, :T_HASH=>1, :T_DATA=>1}
View gist:f9a068c2e84f9324f7626795b212302e
require 'fiddle'
def create_large_string(size)
func = Fiddle::Function.new(Fiddle::Handle::DEFAULT['rb_str_new'], [Fiddle::TYPE_VOIDP,Fiddle::TYPE_LONG], Fiddle::TYPE_VOIDP)
# returns fast on environments whose malloc delays the actual allocation
ptr = func.call(nil, size)
end
View gist:70ddf2b4e82537d71f066d8609853dc4
2016-09-12 07:02:10 +0900
target 0: ruby 2.4.0dev (2016-07-22 trunk 55727) [x86_64-linux] at "./miniruby55727 -I./lib -I. -I.ext/common --disable-gem"
target 1: built-ruby (ruby 2.4.0dev (2016-09-11) [x86_64-linux]) at "./miniruby -I./lib -I. -I.ext/common --disable-gem"
measure target: real
-----------------------------------------------------------
app_answer
def ack(m, n)
if m == 0 then
@nurse
nurse / yarv-profile.rb
Last active Jul 9, 2016
Profile perf(3)'s report into YARV instructions
View yarv-profile.rb
#!/usr/bin/env ruby
require 'pp'
files = {'vm.inc' => [], 'insns.def' => []}
current_insn = nil
current_filename = 'vm.inc'
lineno_offset = 0
IO.foreach('vm.inc') do |line|
case line
when /^INSN_ENTRY\((\w+)\)/
View mame20160323.rb
Original:
Performance counter stats for './miniruby -e@v=42; n=100_000_000;while n>0; x=@v; x=@v; x=@v; n-=1;end':
5675.422561 task-clock (msec) # 0.998 CPUs utilized
159 context-switches # 0.028 K/sec
2 cpu-migrations # 0.000 K/sec
889 page-faults # 0.157 K/sec
16521817067 cycles # 2.911 GHz
4121915626 stalled-cycles-frontend # 24.95% frontend cycles idle
@nurse
nurse / pid2line.rb
Last active Dec 27, 2018
Show source files and line numers of given process's threads
View pid2line.rb
#!/usr/bin/env ruby
#
# pid2line.rb
#
# Show source files and line numers of given process's threads
#
# This script works only on Linux.
# https://gist.github.com/nurse/0619b6af90df140508c2
#
View gist:54361623c3fc3acafe31
% time ./miniruby -e'a=100;i=0;while i<0xffffff;i+=1;a*=557;a+=2;a%=100000;end'
./miniruby -e'a=100;i=0;while i<0xffffff;i+=1;a*=557;a+=2;a%=100000;end' 2.64s user 0.01s system 99% cpu 2.649 total
% ruby -e'puts RubyVM::InstructionSequence.compile(%q{a=100;i=0;while i<0xffffff;i+=1;a*=557;a+=2;a%=
100000;end}).disasm'
== disasm: #<ISeq:<compiled>@<compiled>>================================
== catch table
| catch type: break st: 0015 ed: 0060 sp: 0000 cont: 0060
| catch type: next st: 0015 ed: 0060 sp: 0000 cont: 0012
| catch type: redo st: 0015 ed: 0060 sp: 0000 cont: 0015
|------------------------------------------------------------------------
@nurse
nurse / chkbuild.yml.erb
Created Sep 13, 2015
template for chkbuild with serverkit
View chkbuild.yml.erb
resources:
- type: package
name: zsh
- type: package
name: screen
- type: package
name: subversion
- type: group
name: <%= user %>
View gist:f916e5ef81d59cfc7315
# p12ファイル内の秘密鍵に対応する公開鍵を表示
openssl pkcs12 -in foo.p12 -nodes | openssl rsa -passin pass: -pubout|openssl rsa -pubin -text
# 証明書を表示
openssl x509 -inform der -in ~/Downloads/ios_distribution.cer -text
openssl genrsa -des3 -out tls.2015.key 2048
openssl req -new -key tls.2015.key -out tls.2015.csr
mv tls.2015.key tls.2015.key.pass
openssl rsa -in tls.2015.key.pass -out tls.2015.key
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