jboner

Latency Comparison Numbers (~2012)
----------------------------------
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

dustin

Install the latest [Couchbase Server for OS X][cbserver].

Tell Terminal you want to be on the alpha track

defaults write com.couchbase.couchbase-server SUFeedURL http://appcast.couchbase.com/couchbase-alpha.xml

Check for updates.

See new stuff.

dustin

#!/usr/bin/env python
"""
tap protocol client.

Copyright (c) 2010  Dustin Sallings <[email protected]>
"""

import sys
import time
import struct

dustin

/*
 * Wrapper program to make general applications into erlang ports.
 */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <sysexits.h>
#include <sys/wait.h>

dustin

(defvar autocommit-dir-set '()
  "Set of directories for which there is a pending timer job")

(defun autocommit-schedule-commit (dn)
  "Schedule an autocommit (and push) if one is not already scheduled for the given dir."
  (if (null (member dn autocommit-dir-set))
      (progn
       (run-with-idle-timer
        10 nil
        (lambda (dn)

tekkub

#!/usr/bin/env ruby

require 'net/http'
require 'net/https'


user  = `git config --global github.user`.strip
token = `git config --global github.token`.strip
raise "Error reading github auth" if user.empty? || token.empty?
auth = {:login => user, :token => token}