tenderlove

###
# Scheme code is translated to YARV byte code, then evaluated in the
# Ruby Virtual Machine

require 'rbconfig'
require 'dl'
require 'fiddle'
require 'strscan'

class RubyVM

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

tomohiro

<Tomohiro>  orz
<Tomohiro>  うける
<gongo_tea> これはなんだろう。土下座してでも来てほしいのか
<gongo_tea> なんか残念なのか
<Tomohiro>  今の時代 LAMP/LAPP のスキルセット持ってても...
<Tomohiro>  的悲壮感ただよってる
<Tomohiro>  Ruby/Node/NginX/Unicorn/MongoDB
<Tomohiro>  あたりがナウい感じ出るのでは
<m_zuma>    RNNUM
<gongo_tea> らんなむ

gist:1406238

Originally:
https://gist.github.com/7565976a89d5da1511ce

Hi Donald (and Martin),

Thanks for pinging me; it's nice to know Typesafe is keeping tabs on this, and I
appreciate the tone. This is a Yegge-long response, but given that you and
Martin are the two people best-situated to do anything about this, I'd rather
err on the side of giving you too much to think about. I realize I'm being very
critical of something in which you've invested a great deal (both financially

waltarix

diff --git a/screen-write.c b/screen-write.c
index 15f8d07..8a175a6 100644
--- a/screen-write.c
+++ b/screen-write.c
@@ -1334,6 +1334,7 @@ screen_write_cell(struct screen_write_ctx *ctx, const struct grid_cell *gc)
 	ctx->cells++;
 
 	/* If the width is zero, combine onto the previous character. */
+	/*
 	if (width == 0) {

mikhailov

- http://www.coffeepowered.net/2009/06/13/fine-tuning-your-garbage-collector/
- http://snaprails.tumblr.com/post/241746095/rubys-gc-configuration

  article’s settings:                                     ("spec spec" took 17-23!sec)
	export RUBY_HEAP_MIN_SLOTS=1250000
	export RUBY_HEAP_SLOTS_INCREMENT=100000
	export RUBY_HEAP_SLOTS_GROWTH_FACTOR=1
	export RUBY_GC_MALLOC_LIMIT=30000000
	export RUBY_HEAP_FREE_MIN=12500

makoto

NOTE: This is English translation of "http://shyouhei.tumblr.com/post/145555071/ruby". 
The theme of Ruby Kaigi 2011 is "The last RubyKaigi" and the chariman Takahashi apparently got the 
inspiration from this blog which Urabe san wrote a year ago. I translated this so that non Japanese 
speaker also understand the context of post RubyKaigi discussions going on in Japanese Ruby community.

あえて言うがRuby会議はそろそろ一回終わってみるべき。

RubyKaigi must die (for at least once).

Original title: Let me say that Ruby Kaigi should end for now.

rails

var DateHelper = {
  // Takes the format of "Jan 15, 2007 15:45:00 GMT" and converts it to a relative time
  // Ruby strftime: %b %d, %Y %H:%M:%S GMT
  time_ago_in_words_with_parsing: function(from) {
    var date = new Date; 
    date.setTime(Date.parse(from));
    return this.time_ago_in_words(date);
  },
  
  time_ago_in_words: function(from) {