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@pylover
pylover / a2dp.py
Last active March 11, 2024 03:06
Fixing bluetooth stereo headphone/headset problem in ubuntu 16.04, 16.10 and also debian jessie, with bluez5.
#! /usr/bin/env python3
"""Fixing bluetooth stereo headphone/headset problem in debian distros.
Workaround for bug: https://bugs.launchpad.net/ubuntu/+source/indicator-sound/+bug/1577197
Run it with python3.5 or higher after pairing/connecting the bluetooth stereo headphone.
This will be only fixes the bluez5 problem mentioned above .
Licence: Freeware
@krambertech
krambertech / Component.jsx
Created July 2, 2016 10:44
ReactJS: Input fire onChange when user stopped typing (or pressed Enter key)
import React, { Component } from 'react';
import TextField from 'components/base/TextField';
const WAIT_INTERVAL = 1000;
const ENTER_KEY = 13;
export default class TextSearch extends Component {
constructor(props) {
super();

CloudFormation snippet to create a VPC to be used for lambda functions. Qualities of the VPC:

  • 4 subnets: 2 public, 2 private (lambda functions should be attached to the private ones).
  • 2 Elastic IPs that can be used to identify traffic coming from lambda functions (e.g. for firewall holes).
  • Security group that can be used for lambda functions.

Notes:

  • uses regions us-east-1a, us-east-1b
  • uses ip block of 10.15.0.0/16 for VPC
@cayasso
cayasso / weeklies.md
Last active July 21, 2019 13:36
List of Weeklies
@valyala
valyala / README.md
Last active April 19, 2024 13:00
Optimizing postgresql table for more than 100K inserts per second

Optimizing postgresql table for more than 100K inserts per second

  • Create UNLOGGED table. This reduces the amount of data written to persistent storage by up to 2x.
  • Set WITH (autovacuum_enabled=false) on the table. This saves CPU time and IO bandwidth on useless vacuuming of the table (since we never DELETE or UPDATE the table).
  • Insert rows with COPY FROM STDIN. This is the fastest possible approach to insert rows into table.
  • Minimize the number of indexes in the table, since they slow down inserts. Usually an index on time timestamp with time zone is enough.
  • Add synchronous_commit = off to postgresql.conf.
  • Use table inheritance for fast removal of old data:
FROM codeship/ruby
MAINTAINER Dave Mox <dave.e.mox@gmail.com>
RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
git \
vim
COPY Makefile /src/
@begriffs
begriffs / sqitch_alternatives.txt
Created November 19, 2015 21:13
sqitch alternatives
https://github.com/flyway/flyway
https://github.com/mattes/migrate
https://bitbucket.org/liamstask/goose
https://github.com/tanel/dbmigrate
https://github.com/BurntSushi/migration
https://github.com/DavidHuie/gomigrate
https://github.com/rubenv/sql-migrate
@paulirish
paulirish / what-forces-layout.md
Last active May 6, 2024 07:54
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
<?
/////////////////////
// slack2html
// by @levelsio
/////////////////////
//
/////////////////////
// WHAT DOES THIS DO?
/////////////////////
//
@RobertoSchneiders
RobertoSchneiders / deploy_with_ebcli3_on_circleci.md
Last active December 4, 2023 09:07
Settings to deploy to AWS Elastic Beanstalk on CircleCi (EB Cli 3)

This is how I configured the deploy of my rails apps to AWS Elastic Beanstalk through CircleCI 1.0.

If you are using the Circle CI 2.0, take a look at this article from ryansimms

Configure Environments Variables

On Project Settings > Environment Variables add this keys:

  • AWS_ACCESS_KEY_ID
  • AWS_SECRET_ACCESS_KEY
    The aws user must have the right permissions. This can be hard, maybe, this can help you.