beginor

CREATE SEQUENCE public.global_id_seq;
ALTER SEQUENCE public.global_id_seq OWNER TO postgres;

CREATE OR REPLACE FUNCTION public.id_generator()
    RETURNS bigint
    LANGUAGE 'plpgsql'
AS $BODY$
DECLARE
    our_epoch bigint := 1314220021721;
    seq_id bigint;

swalkinshaw

Moved to Shopify/graphql-design-tutorial

mperham

=begin
This script attempts to reproduce poor glibc allocator behavior within Ruby, leading
to extreme memory fragmentation and process RSS bloat.

glibc allocates memory using per-thread "arenas".  These blocks can easily fragment when
some objects are free'd and others are long-lived.

Our script runs multiple threads, all allocating randomly sized "large" Strings between 4,000
and 40,000 bytes in size.  This simulates Rails views with ERB creating large chunks of HTML
to output to the browser. Some of these strings are kept around and some are discarded.

AndrewRadev

# Given a long-running process in the terminal:
#
#  - Ctrl+Z to suspend it
#  - Run `keep-track`
#  - Output resumes, when done will show a notification with the time it took for the process to run
#
# Can be customized with an `--icon` to `notify-send`, 
# maybe a sound effect added in the `&&` list.
#
function keep-track() {

alkis

The case for deadlines

Rust aims to be the foundation of fast and robust software. A thorn in that side is the choice of timeout-centric APIs for I/O and multithreading. I posit this was a bad choice and it needs to be remedied as soon as possible before more APIs proliferate this (possibly accidental) design decision.

Motivating example: time limited network client request

Task: connect to a remote server, send a request, receive response with an end-to-end timeout of 10 seconds.

Attempt #1

dylanmckay

#! /usr/bin/env ruby

# NOTE: Requires Ruby 2.1 or greater.

# This script can be used to parse and dump the information from
# the 'html/contact_info.htm' file in a Facebook user data ZIP download.
#
# It prints all cell phone call + SMS message + MMS records, plus a summary of each.
#
# It also dumps all of the records into CSV files inside a 'CSV' folder, that is created

keathley

How we're using dry-monad

Imagine that we have an application where user's have a location. We want to find the weather for their current location using an external service call. We want to provide this functionality in a json api. A basic implementation might look like this.

def create
 user = User.find(params[:id])

csherratt

Rust UI Difficulties

I wanted to give a little bit of a discussion on all my thinking about why UI's are a tricky to get right in Rust. I want to try and differentiate this discussion because there are a number of decent UI frameworks that have been bound to Rust. This is great! I do not want to discourage any of their work, they are wonderful members of our community.

What this is about is how it would be possible to write a good UI framework

shortjared

a4b.amazonaws.com
access-analyzer.amazonaws.com
account.amazonaws.com
acm-pca.amazonaws.com
acm.amazonaws.com
airflow-env.amazonaws.com
airflow.amazonaws.com
alexa-appkit.amazon.com
alexa-connectedhome.amazon.com
amazonmq.amazonaws.com

attilagyorffy

FROM alpine:3.7

RUN apk add --update-cache gcc libc-dev curl jemalloc-dev make linux-headers

RUN mkdir -p /usr/src/ruby
RUN cd /usr/src/ruby
RUN curl "https://cache.ruby-lang.org/pub/ruby/2.4/ruby-2.4.3.tar.gz" | tar -xz
RUN cd ruby-2.4.3 && ./configure --enable-shared --with-jemalloc --disable-install-doc && make