edvakf

package main

import (
	"bytes"
	"database/sql"
	"encoding/gob"
	"log"

	Radix "github.com/fzzy/radix/extra/pool"
)

edvakf

# 10.2s user time, 210ms system time, 41.18M rss, 233.52M vsz
# Current date: Tue Sep 23 08:18:18 2014
# Hostname: ip-172-31-16-67
# Files: /var/lib/mysql/ip-172-31-16-67-slow.log
# Overall: 43.92k total, 45 unique, 422.35 QPS, 1.68x concurrency ________
# Time range: 2014-09-23 08:15:33 to 08:17:17
# Attribute          total     min     max     avg     95%  stddev  median
# ============     ======= ======= ======= ======= ======= ======= =======
# Exec time           174s     3us   609ms     4ms    38ms    15ms    84us

edvakf

<?php

class BloomFilter
{
    const BYTE = 8;

    private $filter; 
    private $filter_length; 
    private $bit_num; 
    private $hash_num; 

edvakf

edvakf

#!/usr/bin/env ruby
# coding: utf-8

require 'set'

module GeoLite2_Country
  class IPv4Block < Struct.new(:start_ip,
                           :mask_length,
                           :geoname_id)
    def self.from_line(line)

edvakf

open System.Collections.Generic

let limit = 100000
let divisor = 1000000

let memo = new Dictionary<int,int> ()

let rec partitions = fun (n, m) ->
  if (n >= limit || m >= limit) then 0
  elif (n = 0) then 1

edvakf

gitlab bot を使って
コードレビューを
ラクにする話

自己紹介

• 名前：高山
• twitter：@edvakf
• お仕事：
• pixivのGrowthに関する開発

edvakf

    /**
     * 想定する文字列（UCS2）かどうか
     * （parse_strした結果に適用される）
     */
    private static function isValidString($str)
    {
        if (mb_strlen($str, 'UTF-8') > self::MAX_DETAIL_CHAR_LENGTH) {
            return false;
        }
        $ucs2 = mb_convert_encoding($str,  'UCS-2', 'UTF-8');

edvakf

# PRML p152-p154


library(ggplot2)
library(MASS)

# a0 and a1 are parameters to predict
a0 <- -0.3
a1 <- 0.5
f <- function(x) {a0 + a1 * x}

edvakf

    log_format ltsv
      "time:$time_iso8601"
      "\treq_time:$request_time"
      "\tapp_time:$upstream_response_time"
      "\tres_size:$bytes_sent"
      "\tstatus:$status"
      "\tmethod:$request_method"
      "\tpath:$request_uri"
      "\thost:$remote_addr"
      "\tua:$http_user_agent"