kkosuge

Twitter の User Streams で流れてくるやつ 2011年10月版

正しい実装でt.coの見えない世界へ

document: https://dev.twitter.com/docs/streaming-api/user-streams

delete

abahgat

import functools
import logging
from google.appengine.api import memcache
 
def cached(time=1200):
  """
  Decorator that caches the result of a method for the specified time in seconds.
  
  Use it as:
    

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

taichi

ログ、その時の為に。

自己紹介

• 佐藤 太一
  • ryushi@twitter
  • taichi@github
  • taichi#1881 @battle.net
• Koshinuke
• Gitフロントエンド(実装済)

STAR-ZERO

public class SampleFragment extends Fragment {

    /** Fragmentで保持しておくデータ */
    private int mData;

    /**
     * Fragmentインスタンスを生成した返却.
     *
     * コンストラクタに引数を渡すのはダメ。
     * Fragmentがメモリ不足で破棄され、そこから復帰する時に空のコンストラクタ呼ばれる。

voluntas

時雨堂を支える技術

日時

2024-04-11

作

時雨堂

バージョン

2024.4

URL

https://shiguredo.jp/

時雨堂クラウドサービスを支える技術

kawanet

#import <Foundation/Foundation.h>

@interface NSURL (dictionaryFromQueryString)
-(NSDictionary *) dictionaryFromQueryString;
@end

voluntas

Django + New Relic コトハジメ

更新

2013-11-02

バージョン

0.0.3

作者

@voluntas

URL

http://voluntas.github.io/

概要

denji

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

miyamoto-daisuke

{
  "AWSTemplateFormatVersion": "2010-09-09",
  "Description": "VPC knowhow template",
  "Parameters": {
    "KeyName": {
      "Description": "Name of an existing EC2 KeyPair to enable SSH access to the instances",
      "Type": "String",
      "MinLength": "1",
      "MaxLength": "64",
      "AllowedPattern": "[-_ a-zA-Z0-9]*",