jeffchan

Latency Comparison Numbers
--------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

jeffchan

root@li687-30:~/dev/hhvm# hphp/test/run -l hphp/test/quick hphp/test/slow hphp/test/zend/good/
Running 10277 tests in 9 threads

FAILED: hphp/test/slow/ext_datetime/strftime.php
--- hphp/test/slow/ext_datetime/strftime.php.expect-trimmed     2014-04-16 04:27:32.000000000 +0000
+++ hphp/test/slow/ext_datetime/strftime.php.out        2014-04-16 04:27:32.000000000 +0000
@@ -1,5 +1,4 @@
 string(9) "Wednesday"
-string(20) " in German Mittwoch."
 string(12) "52,2002,2002"

jeffchan

g rev-list master..library-update --no-merges --pretty=format:'%h -%d %s %cr <%an>' --abbrev-commit --date=relative

jeffchan

require 'spec_helper'

describe 'Explore page' do
  let(:book) { factory_stubbed_book('Metamorphosis', 'Franz Kafka') }

  before do
    PopularBooks.stub(:random => [book])
  end

  describe 'book listing' do