SpringMT

• vim /etc/sysconfig/varnish

VARNISH_LISTEN_PORT=80

• vim /etc/varnish/default.vcl

backend default {

SpringMT

require 'benchmark'
r = 1_000_000
rsqr = r*r
iteration = 100_000

threads= []
mutex = Mutex.new
cnt = [0, 0]

puts Benchmark.measure {

SpringMT

% lldb -c /cores/core.96837                                                                    ~/src/rujit
warning: (x86_64) /cores/core.96837 load command 102 LC_SEGMENT_64 has a fileoff + filesize (0x1e06b000) that extends beyond the end of the file (0x1e06a000), the segment will be truncated to match
warning: (x86_64) /cores/core.96837 load command 103 LC_SEGMENT_64 has a fileoff (0x1e06b000) that extends beyond the end of the file (0x1e06a000), ignoring this section
Core file '/cores/core.96837' (x86_64) was loaded.
Process 0 stopped
* thread #1: tid = 0x0000, 0x0000000107acb684 ruby_jit.96837.0.dylib`ruby_jit_0 + 84, stop reason = signal SIGSTOP
    frame #0: 0x0000000107acb684 ruby_jit.96837.0.dylib`ruby_jit_0 + 84
ruby_jit.96837.0.dylib`ruby_jit_0 + 84:
-> 0x107acb684:  movq   (%rbx), %rbx
   0x107acb687:  testb  $0x2, %bl

SpringMT

StackProf.run(mode: :cpu, raw: true, out: 'tmp/stackprof-cpu-sample_raw.dump') do                                                                 
  1000.times do
    Rails.configuration.database_configuration
    ActiveRecord::Base.establish_connection(
      username: 'root',
      adapter:  'mysql2',
      socket:   '/tmp/mysql.sock'
    )
  end
end

SpringMT

StackProf.run(mode: :cpu, out: 'tmp/stackprof-cpu-sample.dump') do
  1000.times do
    Rails.configuration.database_configuration                                                                                                    
    ActiveRecord::Base.establish_connection(
      username: 'root',
      adapter:  'mysql2',
      socket:   '/tmp/mysql.sock'
    )
  end
end

SpringMT

 % ./configure --prefix=$HOME/.rbenv/versions/rujit
checking build system type... x86_64-apple-darwin13.3.0
checking host system type... x86_64-apple-darwin13.3.0
checking target system type... x86_64-apple-darwin13.3.0
checking for gcc-4.2... no
checking for clang... clang
checking for gcc... (cached) clang
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 

SpringMT

r = 1000000
rsqr = r*r
iteration = 10000

cnt = [0, 0]
16.times do
    Thread.new do
        iteration.times do
            x = rand(2*r) - r
            x = x*x

SpringMT

require 'benchmark'
r = 1_000_000
rsqr = r*r
iteration = 10_000

threads= []
mutex = Mutex.new
cnt = [0, 0]

puts Benchmark.measure {

SpringMT

### Tested script is below.

```ruby
require 'psych'

puts `ps aux | grep ruby | grep -v grep`

begin
  Psych.load(<<EOS)
default: &default                                                                                                                                                     

SpringMT

require 'yaml'                                                                                                                                                        

puts `ps aux | grep ruby | grep -v grep`

begin
  YAML.load(<<EOS)
default: &default
  host: localhost
  adapter: mysql2
  encoding: utf8mb4